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[CLOSED] Mageia 8 Grub2 won't boot from a second hard disk

http://forums.mageia.org/en/viewtopic.php?f=7&t=13993

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[CLOSED] Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 12th, '21, 03:32
by griffin2
My desktop PC has two Seagate 80GB SATA hard disks, but Mageia 8 Grub2 won't boot from the second hard disk.
The partition layouts on the two hard disks are identical: /boot, / (root), /home, <swap>, /var, /usr, and /data.

Code: Select all
# blkid /dev/sda
/dev/sda5: UUID="e3b987e5-503d-4f86-911e-e8c3eb7264b9" BLOCK_SIZE="1024" TYPE="ext4"
/dev/sda6: UUID="806814a2-07a3-490c-9aef-f7c52e6ec5a4" BLOCK_SIZE="1024" TYPE="ext4"
/dev/sda7: UUID="c2aa0e66-1fe8-42a3-abe3-2303ba6d864b" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda8: UUID="8513c797-3b17-49f2-a2ec-218a246b257b" TYPE="swap"
/dev/sda9: UUID="a409fde0-7995-49cd-88de-bc561480ca85" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda10: UUID="6b51cc41-2463-4cb1-b8fb-44282ea6cc3a" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda11: UUID="d104a79a-be5f-4b8f-b64b-ef4c791a5ba8" BLOCK_SIZE="4096" TYPE="ext4"

# blkid /dev/sdb
/dev/sdb5: UUID="c8181aec-8686-4f6a-a164-def38d6c00d4" BLOCK_SIZE="1024" TYPE="ext4"
/dev/sdb6: UUID="67042199-fca0-46ab-ae66-9917b0af852a" BLOCK_SIZE="1024" TYPE="ext4"
/dev/sdb7: UUID="6c0f12fd-e739-421e-a54e-94d7754dbc41" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sdb8: UUID="a0656845-3eff-42ac-b6e0-b5c0fba91b12" TYPE="swap"
/dev/sdb9: UUID="79ce8bde-a9df-48d3-9a5b-be34d0b6b576" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sdb10: UUID="23321110-cc41-42f4-97d9-d97d121668b8" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sdb11: UUID="50f46ce5-1b4f-4bef-9a3b-31a600ac3c14" BLOCK_SIZE="4096" TYPE="ext4"

The first disk, /dev/sda was upgraded in place from Mageia 7 to Mageia 8.

The second disk, /dev/sdb was a clone created by Clonezilla of Mageia 7 on /dev/sda before that was upgraded to Mageia 8, as found by os-prober:
Code: Select all
# os-prober
/dev/sdb6:Mageia 7 (7):Mageia:linux

But Mageia 8 Grub2 insists on using the Mageia 8 root partition, even when it thinks it's trying to boot Mageia 7!

Re: Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 12th, '21, 17:01
by doktor5000
When you cloned that mga7, did you also update the UUIDs in the grub configuration, or did you only change the UUID on the filesystems?
If the latter, both systems will reference the same UUIDs as you cloned it. Otherwise you would need to provide the actual menu entries from /boot/grub2/grub.cfg

You could also run os-prober and afterwards look in the journal, where you can see what os-prober executed while running, which might provide some clues.

Re: Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 12th, '21, 20:25
by griffin2
doktor5000 wrote:When you cloned that mga7, did you also update the UUIDs in the grub configuration, or did you only change the UUID on the filesystems?

When I cloned the mga7 system, I changed the target partition UUIDs away from source values by immediately running the command "tune2fs -U random" against each cloned partition. Then I ran the upgrade from mageia 7 to mageia 8.

However, I didn't notice that the PARTNUUID containing the drives' volume serial number fields had also been cloned.

Since I'd saved a copy of the blkid command output, I could see that hard disk /dev/sdb used to have a volume serial number of 6d549, one less than the volume serial number of hard disk /dev/sda, 6d550.

Thus I was able to use hexedit to find the little-endian form of the volume serial number d5500006 within the first 512 bytes of /dev/sdb at hex location 1b8 and change the 50 back to 49 restoring the volume serial number 6d549.

Apparently that problem led grub2 to use the root partition on /dev/sda instead of /dev/sdb, so no wonder!
Now I've backed up /boot/grub2/grub.cfg to grub.cfg.sav and edited grub.cfg to use the right partitions.

What can I do to get grub2 working properly again? How can I install my repaired grub2 configuration on /dev/sda?

Re: Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 12th, '21, 23:55
by doktor5000
You could try it like this: https://askubuntu.com/questions/192621/ ... epair-grub

Re: Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 13th, '21, 01:34
by griffin2
Running grub2-install to use the repaired grub.cfg appears to have worked.
Code: Select all
# grub2-install /dev/sda
Installing for i386-pc platform.
Installation finished. No error reported.

And update-grub ran without reporting any errors, but sadly it generated the same broken grub.cfg file. I guess I'll have to look into grub2-mkconfig to see if I can figure out where it gets lost. Insight or advice will be appreciated.

Re: Mageia 8 Grub2 won't boot from a second hard disk

PostPosted: Mar 16th, '21, 01:04
by griffin2
I don't want to look into update-grub and grub2-mkconfig, but the Mageia 8 boot setup process appears to be broken.

I didn't modify the Mageia 8 sources used to generate grub.cfg, except to add a 40_custom entry to boot clonezilla.
Code: Select all
# ls -al /etc/grub.d
total 73
drwxr-xr-x   2 root root  1024 Mar 13 19:18 ./
drwxr-xr-x 134 root root  9216 Mar 13 19:16 ../
-rwxr-xr-x   1 root root  9346 Feb 17 03:43 00_header*
-rwxr-xr-x   1 root root   236 Feb 17 03:43 01_users*
-rwxr-xr-x   1 root root   835 Feb 17 03:43 08_fallback_counting*
-rwxr-xr-x   1 root root 11771 Feb 17 03:43 10_linux*
-rwxr-xr-x   1 root root   833 Feb 17 03:43 10_reset_boot_success*
-rwxr-xr-x   1 root root   892 Feb 17 03:43 12_menu_auto_hide*
-rwxr-xr-x   1 root root   410 Feb 17 03:43 14_menu_show_once*
-rwxr-xr-x   1 root root 12285 Feb 17 03:43 20_linux_xen*
-rwxr-xr-x   1 root root  3429 Dec 12 02:34 20_pcmemtest*
-rwxr-xr-x   1 root root  2562 Feb 17 03:43 20_ppc_terminfo*
-rwxr-xr-x   1 root root 10673 Feb 17 03:43 30_os-prober*
-rwxr-xr-x   1 root root  1415 Feb 17 03:43 30_uefi-firmware*
-rwxr-xr-x   1 root root   622 Mar  8 18:08 40_custom*
-rwxr-xr-x   1 root root   220 Feb 17 03:43 41_custom*
-rw-r--r--   1 root root   483 Feb 17 03:43 README


Code: Select all
# cat /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT=splash
GRUB_DEFAULT=saved
GRUB_DISABLE_OS_PROBER=false
GRUB_DISABLE_RECOVERY=false
GRUB_DISABLE_SUBMENU=n
GRUB_DISTRIBUTOR=Mageia
GRUB_ENABLE_CRYPTODISK=y
GRUB_GFXMODE=1024x768x32
GRUB_GFXPAYLOAD_LINUX=text
GRUB_SAVEDEFAULT=true
GRUB_TERMINAL_OUTPUT=gfxterm
GRUB_THEME=/boot/grub2/themes/maggy/theme.txt
GRUB_TIMEOUT=10


My two hard disks /dev/sda and /dev/sdb with their partitions, UUIDs and PARTNUUIDs are as follows:
Code: Select all
# blkid
/dev/sda5: UUID="e3b987e5-503d-4f86-911e-e8c3eb7264b9" BLOCK_SIZE="1024" TYPE="ext4" PARTUUID="0006d550-05"
/dev/sda6: UUID="806814a2-07a3-490c-9aef-f7c52e6ec5a4" BLOCK_SIZE="1024" TYPE="ext4" PARTUUID="0006d550-06"
/dev/sda7: UUID="c2aa0e66-1fe8-42a3-abe3-2303ba6d864b" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d550-07"
/dev/sda8: UUID="8513c797-3b17-49f2-a2ec-218a246b257b" TYPE="swap" PARTUUID="0006d550-08"
/dev/sda9: UUID="a409fde0-7995-49cd-88de-bc561480ca85" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d550-09"
/dev/sda10: UUID="6b51cc41-2463-4cb1-b8fb-44282ea6cc3a" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d550-0a"
/dev/sda11: UUID="d104a79a-be5f-4b8f-b64b-ef4c791a5ba8" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d550-0b"
/dev/sdb5: UUID="c8181aec-8686-4f6a-a164-def38d6c00d4" BLOCK_SIZE="1024" TYPE="ext4" PARTUUID="0006d549-05"
/dev/sdb6: UUID="67042199-fca0-46ab-ae66-9917b0af852a" BLOCK_SIZE="1024" TYPE="ext4" PARTUUID="0006d549-06"
/dev/sdb7: UUID="6c0f12fd-e739-421e-a54e-94d7754dbc41" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d549-07"
/dev/sdb8: UUID="a0656845-3eff-42ac-b6e0-b5c0fba91b12" TYPE="swap" PARTUUID="0006d549-08"
/dev/sdb9: UUID="79ce8bde-a9df-48d3-9a5b-be34d0b6b576" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d549-09"
/dev/sdb10: UUID="23321110-cc41-42f4-97d9-d97d121668b8" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d549-0a"
/dev/sdb11: UUID="50f46ce5-1b4f-4bef-9a3b-31a600ac3c14" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="0006d549-0b"


The /etc/fstab file of the system on /dev/sda (Mageia 8) is as follows:
Code: Select all
# cat /etc/fstab
# Entry for /dev/sda6 :
UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 / ext4 noatime,acl 1 1
# Entry for /dev/sda5 :
UUID=e3b987e5-503d-4f86-911e-e8c3eb7264b9 /boot ext4 noatime,acl 1 2
# Entry for /dev/sda7 :
UUID=c2aa0e66-1fe8-42a3-abe3-2303ba6d864b /home ext4 noatime,acl 1 2
none /proc proc defaults 0 0
none /tmp tmpfs defaults 0 0
# Entry for /dev/sda9 :
UUID=a409fde0-7995-49cd-88de-bc561480ca85 /var ext4 noatime,acl 1 2
# Entry for /dev/sda10 :
UUID=6b51cc41-2463-4cb1-b8fb-44282ea6cc3a /usr ext4 noatime,acl 1 2
# Entry for /dev/sda11 :
UUID=d104a79a-be5f-4b8f-b64b-ef4c791a5ba8 /data ext4 noatime,acl 1 2
# Entry for /dev/sda8 :
UUID=8513c797-3b17-49f2-a2ec-218a246b257b swap swap defaults 0 0
# Entry for /dev/sdb8 :
UUID=a0656845-3eff-42ac-b6e0-b5c0fba91b12 swap swap defaults 0 0


The /etc/fstab file of the system on /dev/sdb (Mageia 7) is as follows:
Code: Select all
# cat /disk3/etc/fstab
# Entry for /dev/sdb6 :
UUID=67042199-fca0-46ab-ae66-9917b0af852a / ext4 noatime,acl 1 1
# Entry for /dev/sdb5 :
UUID=c8181aec-8686-4f6a-a164-def38d6c00d4 /boot ext4 noatime,acl 1 2
# Entry for /dev/sdb7 :
UUID=6c0f12fd-e739-421e-a54e-94d7754dbc41 /home ext4 noatime,acl 1 2
none /proc proc defaults 0 0
none /tmp tmpfs defaults 0 0
# Entry for /dev/sdb9 :
UUID=79ce8bde-a9df-48d3-9a5b-be34d0b6b576 /var ext4 noatime,acl 1 2
# Entry for /dev/sdb10 :
UUID=23321110-cc41-42f4-97d9-d97d121668b8 /usr ext4 noatime,acl 1 2
# Entry for /dev/sdb11 :
UUID=50f46ce5-1b4f-4bef-9a3b-31a600ac3c14 /data ext4 noatime,acl 1 2
# Entry for /dev/sda8 :
UUID=8513c797-3b17-49f2-a2ec-218a246b257b swap swap defaults 0 0
# Entry for /dev/sdb8 :
UUID=a0656845-3eff-42ac-b6e0-b5c0fba91b12 swap swap defaults 0 0


Here is the /boot/grub2/grub.cfg file generated under Mageia 8, as saved in a backup file:
Code: Select all
# cat grub.cfg.save.bad
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
set pager=1

if [ -f ${config_directory}/grubenv ]; then
  load_env -f ${config_directory}/grubenv
elif [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos10'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos10 --hint-efi=hd0,msdos10 --hint-baremetal=ahci0,msdos10  6b51cc41-2463-4cb1-b8fb-44282ea6cc3a
else
  search --no-floppy --fs-uuid --set=root 6b51cc41-2463-4cb1-b8fb-44282ea6cc3a
fi
    font="/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=1024x768x32
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
else
  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
fi
insmod gfxmenu
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-16.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-20.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-28.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoRegular-20.pf2
insmod png
set theme=($root)/grub2/themes/maggy/theme.txt
export theme
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=10
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/01_users ###
if [ -f ${prefix}/user.cfg ]; then
  source ${prefix}/user.cfg
  if [ -n "${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root ${GRUB2_PASSWORD}
  fi
fi
### END /etc/grub.d/01_users ###

### BEGIN /etc/grub.d/08_fallback_counting ###
insmod increment
# Check if boot_counter exists and boot_success=0 to activate this behaviour.
if [ -n "${boot_counter}" -a "${boot_success}" = "0" ]; then
  # if countdown has ended, choose to boot rollback deployment,
  # i.e. default=1 on OSTree-based systems.
  if  [ "${boot_counter}" = "0" -o "${boot_counter}" = "-1" ]; then
    set default=1
    set boot_counter=-1
  # otherwise decrement boot_counter
  else
    decrement boot_counter
  fi
  save_env boot_counter
fi
### END /etc/grub.d/08_fallback_counting ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Mageia' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
        set gfxpayload=text
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
        else
          search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
        fi
        linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash
        initrd  /initrd-5.10.20-desktop-2.mga8.img
}
submenu 'Advanced options for Mageia' $menuentry_id_option 'gnulinux-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        menuentry 'Mageia (5.10.20-desktop-2.mga8) 8' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.20-desktop-2.mga8-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash
                initrd  /initrd-5.10.20-desktop-2.mga8.img
        }
        menuentry 'Mageia (5.10.20-desktop-2.mga8) 8 (recovery mode)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.20-desktop-2.mga8-recovery-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd  /initrd-5.10.20-desktop-2.mga8.img
        }
        menuentry 'Mageia (5.10.19-desktop-1.mga7) 8' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.19-desktop-1.mga7-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash
                initrd  /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia (5.10.19-desktop-1.mga7) 8 (recovery mode)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.19-desktop-1.mga7-recovery-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd  /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia (desktop) 8' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-desktop-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-desktop root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash
                initrd  /initrd-desktop.img
        }
        menuentry 'Mageia (desktop) 8 (recovery mode)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-desktop-recovery-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-desktop root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd  /initrd-desktop.img
        }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_reset_boot_success ###
# Hiding the menu is ok if last boot was ok or if this is a first boot attempt to boot the entry
if [ "${boot_success}" = "1" -o "${boot_indeterminate}" = "1" ]; then
  set menu_hide_ok=1
else
  set menu_hide_ok=0
fi
# Reset boot_indeterminate after a successful boot
if [ "${boot_success}" = "1" ] ; then
  set boot_indeterminate=0
# Avoid boot_indeterminate causing the menu to be hidden more then once
elif [ "${boot_indeterminate}" = "1" ]; then
  set boot_indeterminate=2
fi
# Reset boot_success for current boot
set boot_success=0
save_env boot_success boot_indeterminate
### END /etc/grub.d/10_reset_boot_success ###

### BEGIN /etc/grub.d/12_menu_auto_hide ###
if [ x$feature_timeout_style = xy ] ; then
  if [ "${menu_show_once}" ]; then
    unset menu_show_once
    save_env menu_show_once
    set timeout_style=menu
    set timeout=60
  elif [ "${menu_auto_hide}" -a "${menu_hide_ok}" = "1" ]; then
    set orig_timeout_style=${timeout_style}
    set orig_timeout=${timeout}
    if [ "${fastboot}" = "1" ]; then
      # timeout_style=menu + timeout=0 avoids the countdown code keypress check
      set timeout_style=menu
      set timeout=0
    else
      set timeout_style=hidden
      set timeout=1
    fi
  fi
fi
### END /etc/grub.d/12_menu_auto_hide ###

### BEGIN /etc/grub.d/14_menu_show_once ###
if [ x$feature_timeout_style = xy ]; then
  if [ "${menu_show_once_timeout}" ]; then
    set timeout_style=menu
    set timeout="${menu_show_once_timeout}"
    unset menu_show_once_timeout
    save_env menu_show_once_timeout
  fi
fi
### END /etc/grub.d/14_menu_show_once ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_pcmemtest ###
menuentry 'PCMemTest' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
        else
          search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
        fi
        echo    'Loading  pcmemtest ...'
        set     gfxpayload=640x400,800x600,1024x768
        linux32 /pcmemtest
}
### END /etc/grub.d/20_pcmemtest ###

### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Mageia 7 (7) (on /dev/sdb6)' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-67042199-fca0-46ab-ae66-9917b0af852a' {
        savedefault
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
        else
          search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
        fi
        linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
        initrd /initrd-5.10.20-desktop-2.mga7.img
}
submenu 'Advanced options for Mageia 7 (7) (on /dev/sdb6)' $menuentry_id_option 'osprober-gnulinux-advanced-67042199-fca0-46ab-ae66-9917b0af852a' {
        menuentry 'Mageia (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia (5.10.20-desktop-2.mga7) 7 (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia (5.10.20-desktop-2.mga7) 7 (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia (5.10.19-desktop-1.mga7) 7 (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.19-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia (5.10.19-desktop-1.mga7) 7 (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.19-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia (5.10.14-desktop-1.mga7) 7 (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.14-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.14-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.14-desktop-1.mga7.img
        }
        menuentry 'Mageia (5.10.14-desktop-1.mga7) 7 (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.14-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.14-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd /initrd-5.10.14-desktop-1.mga7.img
        }
        menuentry 'Mageia (desktop) 7 (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-desktop--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-desktop root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-desktop.img
        }
        menuentry 'Mageia (desktop) 7 (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-desktop--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-desktop root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd /initrd-desktop.img
        }
}

# Other OS found, undo autohiding of menu unless menu_auto_hide=2
if [ "${orig_timeout_style}" -a "${menu_auto_hide}" != "2" ]; then
  set timeout_style=${orig_timeout_style}
  set timeout=${orig_timeout}
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "Clonezilla" {
set root=(hd2,1)
linux /live-usb/vmlinuz boot=live union=overlay username=user config components quiet noswap nolocales edd=on nomodeset ocs_live_run=\"ocs-live-general\" ocs_live_extra_param=\"\" keyboard-layouts= ocs_live_batch=\"no\" locales= vga=788 ip=127.0.0.1 nosplash live-media-path=/live-usb bootfrom=/dev/sdc1 toram=live-usb,syslinux,EFI
initrd /live-usb/initrd.img
}
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###


And here is the /boot/grub2/grub.cfg file as edited to boot Mageia 8 from /dev/sda and Mageia 7 from /dev/sdb:
Code: Select all
# cat /boot/grub2/grub.cfg
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
set pager=1

if [ -f ${config_directory}/grubenv ]; then
  load_env -f ${config_directory}/grubenv
elif [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos10'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos10 --hint-efi=hd0,msdos10 --hint-baremetal=ahci0,msdos10  6b51cc41-2463-4cb1-b8fb-44282ea6cc3a
else
  search --no-floppy --fs-uuid --set=root 6b51cc41-2463-4cb1-b8fb-44282ea6cc3a
fi
    font="/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=1024x768x32
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hd0,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
else
  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
fi
insmod gfxmenu
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-16.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-20.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoBold-28.pf2
loadfont ($root)/grub2/themes/maggy/MageiaLogoRegular-20.pf2
insmod png
set theme=($root)/grub2/themes/maggy/theme.txt
export theme
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=10
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/01_users ###
if [ -f ${prefix}/user.cfg ]; then
  source ${prefix}/user.cfg
  if [ -n "${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root ${GRUB2_PASSWORD}
  fi
fi
### END /etc/grub.d/01_users ###

### BEGIN /etc/grub.d/08_fallback_counting ###
insmod increment
# Check if boot_counter exists and boot_success=0 to activate this behaviour.
if [ -n "${boot_counter}" -a "${boot_success}" = "0" ]; then
  # if countdown has ended, choose to boot rollback deployment,
  # i.e. default=1 on OSTree-based systems.
  if  [ "${boot_counter}" = "0" -o "${boot_counter}" = "-1" ]; then
    set default=1
    set boot_counter=-1
  # otherwise decrement boot_counter
  else
    decrement boot_counter
  fi
  save_env boot_counter
fi
### END /etc/grub.d/08_fallback_counting ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Mageia 8' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-simple-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
        set gfxpayload=text
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
        else
          search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
        fi
        linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
        initrd  /initrd-5.10.20-desktop-2.mga8.img
}
submenu 'Advanced options for Mageia 8' $menuentry_id_option 'gnulinux-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        menuentry 'Mageia 8 (5.10.20-desktop-2.mga8)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.20-desktop-2.mga8-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd  /initrd-5.10.20-desktop-2.mga8.img
        }
        menuentry 'Mageia 8 (5.10.20-desktop-2.mga8) (recovery mode)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.20-desktop-2.mga8-recovery-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.20-desktop-2.mga8 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd  /initrd-5.10.20-desktop-2.mga8.img
        }
        menuentry 'Mageia 7 (5.10.19-desktop-1.mga7)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.19-desktop-1.mga7-advanced-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
        savedefault
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro  splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd  /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia 7 (5.10.19-desktop-1.mga7) (recovery mode)' --class mageia --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-5.10.19-desktop-1.mga7-recovery-806814a2-07a3-490c-9aef-f7c52e6ec5a4' {
                set gfxpayload=text
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
                else
                  search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
                fi
                linux   /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=806814a2-07a3-490c-9aef-f7c52e6ec5a4 ro failsafe
                initrd  /initrd-5.10.19-desktop-1.mga7.img
        }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_reset_boot_success ###
# Hiding the menu is ok if last boot was ok or if this is a first boot attempt to boot the entry
if [ "${boot_success}" = "1" -o "${boot_indeterminate}" = "1" ]; then
  set menu_hide_ok=1
else
  set menu_hide_ok=0
fi
# Reset boot_indeterminate after a successful boot
if [ "${boot_success}" = "1" ] ; then
  set boot_indeterminate=0
# Avoid boot_indeterminate causing the menu to be hidden more then once
elif [ "${boot_indeterminate}" = "1" ]; then
  set boot_indeterminate=2
fi
# Reset boot_success for current boot
set boot_success=0
save_env boot_success boot_indeterminate
### END /etc/grub.d/10_reset_boot_success ###

### BEGIN /etc/grub.d/12_menu_auto_hide ###
if [ x$feature_timeout_style = xy ] ; then
  if [ "${menu_show_once}" ]; then
    unset menu_show_once
    save_env menu_show_once
    set timeout_style=menu
    set timeout=60
  elif [ "${menu_auto_hide}" -a "${menu_hide_ok}" = "1" ]; then
    set orig_timeout_style=${timeout_style}
    set orig_timeout=${timeout}
    if [ "${fastboot}" = "1" ]; then
      # timeout_style=menu + timeout=0 avoids the countdown code keypress check
      set timeout_style=menu
      set timeout=0
    else
      set timeout_style=hidden
      set timeout=1
    fi
  fi
fi
### END /etc/grub.d/12_menu_auto_hide ###

### BEGIN /etc/grub.d/14_menu_show_once ###
if [ x$feature_timeout_style = xy ]; then
  if [ "${menu_show_once_timeout}" ]; then
    set timeout_style=menu
    set timeout="${menu_show_once_timeout}"
    unset menu_show_once_timeout
    save_env menu_show_once_timeout
  fi
fi
### END /etc/grub.d/14_menu_show_once ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_pcmemtest ###
menuentry 'PCMemTest' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5  e3b987e5-503d-4f86-911e-e8c3eb7264b9
        else
          search --no-floppy --fs-uuid --set=root e3b987e5-503d-4f86-911e-e8c3eb7264b9
        fi
        echo    'Loading  pcmemtest ...'
        set     gfxpayload=640x400,800x600,1024x768
        linux32 /pcmemtest
}
### END /etc/grub.d/20_pcmemtest ###

### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Mageia 7 (on /dev/sdb6)' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-67042199-fca0-46ab-ae66-9917b0af852a' {
        savedefault
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
        else
          search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
        fi
        linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
        initrd /initrd-5.10.20-desktop-2.mga7.img
}
submenu 'Advanced options for Mageia 7 (on /dev/sdb6)' $menuentry_id_option 'osprober-gnulinux-advanced-67042199-fca0-46ab-ae66-9917b0af852a' {
        menuentry 'Mageia 7 (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia 7 (5.10.20-desktop-2.mga7) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia 7 (5.10.20-desktop-2.mga7) (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.20-desktop-2.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.20-desktop-2.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro failsafe
                initrd /initrd-5.10.20-desktop-2.mga7.img
        }
        menuentry 'Mageia 7 (5.10.19-desktop-1.mga7) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.19-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia 7 (5.10.19-desktop-1.mga7) (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.19-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.19-desktop-1.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro failsafe
                initrd /initrd-5.10.19-desktop-1.mga7.img
        }
        menuentry 'Mageia 7 (5.10.14-desktop-1.mga7) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.14-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.14-desktop-1.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro splash quiet noiswmd apic lapic resume=UUID=8513c797-3b17-49f2-a2ec-218a246b257b audit=0 vga=791
                initrd /initrd-5.10.14-desktop-1.mga7.img
        }
        menuentry 'Mageia 7 (5.10.14-desktop-1.mga7) (recovery mode) (on /dev/sdb6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-5.10.14-desktop-1.mga7--67042199-fca0-46ab-ae66-9917b0af852a' {
                savedefault
                insmod part_msdos
                insmod ext2
                set root='hd1,msdos5'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos5 --hint-efi=hd1,msdos5 --hint-baremetal=ahci1,msdos5  c8181aec-8686-4f6a-a164-def38d6c00d4
                else
                  search --no-floppy --fs-uuid --set=root c8181aec-8686-4f6a-a164-def38d6c00d4
                fi
                linux /vmlinuz-5.10.14-desktop-1.mga7 root=UUID=67042199-fca0-46ab-ae66-9917b0af852a ro failsafe
                initrd /initrd-5.10.14-desktop-1.mga7.img
        }
}

# Other OS found, undo autohiding of menu unless menu_auto_hide=2
if [ "${orig_timeout_style}" -a "${menu_auto_hide}" != "2" ]; then
  set timeout_style=${orig_timeout_style}
  set timeout=${orig_timeout}
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "Clonezilla" {
set root=(hd2,1)
linux /live-usb/vmlinuz boot=live union=overlay username=user config components quiet noswap nolocales edd=on nomodeset ocs_live_run=\"ocs-live-general\" ocs_live_extra_param=\"\" keyboard-layouts= ocs_live_batch=\"no\" locales= vga=788 ip=127.0.0.1 nosplash live-media-path=/live-usb bootfrom=/dev/sdc1 toram=live-usb,syslinux,EFI
initrd /live-usb/initrd.img
}
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

Re: [CLOSED] Mageia 8 Grub2 won't boot from a second hard di

PostPosted: Mar 20th, '21, 08:11
by griffin2
I've marked this thread CLOSED because I edited grub.cfg to fix my system. The Mageia 8 boot setup process still seems to be broken, but perhaps I damaged that when I cloned Mageia 7 to /dev/sdb before upgrading /dev/sda to Mageia 8.
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