Mageia forum

I just installed the updates to Mageia 5 beta 3.

PC does not boot anymore, at least not with the new kernel.
Fortunately, the old kernel still works fine

This is how /boot looks like:

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[bert@Dell7720Mageia5 boot]$ ls -al
total 25553
drwxr-xr-x  6 root root    4096 Feb 23 19:35 ./
drwxr-xr-x 19 root root    4096 Feb 16 21:30 ../
-rw-r--r--  1 root root  171234 Feb  9 07:48 config-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root  171234 Feb 23 00:20 config-3.19.0-desktop-2.mga5
drwxr-xr-x  2 root root    4096 Feb 21 13:54 dracut/
drwxrwxrwx  3 root root     512 Jan  1  1970 EFI/
-rwxr-xr-x  1 root root  552960 Feb 14 16:58 gfxmenu*
drwxr-xr-x  2 root root    4096 Feb 11 21:42 grub/
drwxr-xr-x  6 root root    4096 Feb 23 19:31 grub2/
-rw-------  1 root root 9313895 Feb 14 17:29 initrd-3.19.0-desktop-1.mga5.img
lrwxrwxrwx  1 root root      32 Feb 23 19:34 initrd-desktop.img -> initrd-3.19.0-desktop-1.mga5.img
lrwxrwxrwx  1 root root      32 Feb 11 21:46 initrd.img -> initrd-3.19.0-desktop-1.mga5.img
-rw-r--r--  1 root root  308314 Sep 23 21:08 mageia.bmp
-rw-r--r--  1 root root  245356 Feb  9 07:48 symvers-3.19.0-desktop-1.mga5.xz
-rw-r--r--  1 root root  245356 Feb 23 00:20 symvers-3.19.0-desktop-2.mga5.xz
-rw-r--r--  1 root root 3222798 Feb  9 07:48 System.map-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 3222798 Feb 23 00:20 System.map-3.19.0-desktop-2.mga5
lrwxrwxrwx  1 root root      29 Feb 11 21:46 vmlinuz -> vmlinuz-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 4341120 Feb  9 07:48 vmlinuz-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 4341568 Feb 23 00:20 vmlinuz-3.19.0-desktop-2.mga5
lrwxrwxrwx  1 root root      29 Feb 23 19:35 vmlinuz-desktop -> vmlinuz-3.19.0-desktop-1.mga5


The .img file is missing for the new kernel 3.19.0-2.
Can I repair this myself?

Try this (as root):

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/bin/dracut -f /boot/initrd-3.19.0-desktop-2.mga5.img 3.19.0-desktop-2.mga5


Thanks. One step further, I now have .img:

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[root@Dell7720Mageia5 boot]# ls -al
total 34637
drwxr-xr-x  6 root root    4096 Feb 23 20:14 ./
drwxr-xr-x 19 root root    4096 Feb 16 21:30 ../
-rw-r--r--  1 root root  171234 Feb  9 07:48 config-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root  171234 Feb 23 00:20 config-3.19.0-desktop-2.mga5
drwxr-xr-x  2 root root    4096 Feb 21 13:54 dracut/
drwxrwxrwx  3 root root     512 Jan  1  1970 EFI/
-rwxr-xr-x  1 root root  552960 Feb 14 16:58 gfxmenu*
drwxr-xr-x  2 root root    4096 Feb 11 21:42 grub/
drwxr-xr-x  6 root root    4096 Feb 23 20:26 grub2/
-rw-------  1 root root 9313895 Feb 14 17:29 initrd-3.19.0-desktop-1.mga5.img
-rw-------  1 root root 9298589 Feb 23 20:14 initrd-3.19.0-desktop-2.mga5.img
lrwxrwxrwx  1 root root      32 Feb 23 19:34 initrd-desktop.img -> initrd-3.19.0-desktop-1.mga5.img
lrwxrwxrwx  1 root root      32 Feb 11 21:46 initrd.img -> initrd-3.19.0-desktop-1.mga5.img
-rw-r--r--  1 root root  308314 Sep 23 21:08 mageia.bmp
-rw-r--r--  1 root root  245356 Feb  9 07:48 symvers-3.19.0-desktop-1.mga5.xz
-rw-r--r--  1 root root  245356 Feb 23 00:20 symvers-3.19.0-desktop-2.mga5.xz
-rw-r--r--  1 root root 3222798 Feb  9 07:48 System.map-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 3222798 Feb 23 00:20 System.map-3.19.0-desktop-2.mga5
lrwxrwxrwx  1 root root      29 Feb 11 21:46 vmlinuz -> vmlinuz-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 4341120 Feb  9 07:48 vmlinuz-3.19.0-desktop-1.mga5
-rw-r--r--  1 root root 4341568 Feb 23 00:20 vmlinuz-3.19.0-desktop-2.mga5
lrwxrwxrwx  1 root root      29 Feb 23 19:35 vmlinuz-desktop -> vmlinuz-3.19.0-desktop-1.mga5


But still in advanced options, selecting the new kernel does not boot, and I am not fast enough to see an error message.

What do you see if it boots?

Normally there is a message about ram disk in a smaller black window than the screensize.
With the new kernel, this window comes, but I don't see ramdisk or anything else appearing.
Then the screen becomes black and the disk activity is very slowly on: 0.5 sec on, 1 sec off and so on.
Not the normal disk activity.
Should I wait longer than a few minutes?

I use uefi grub2...

bertaerts wrote:Should I wait longer than a few minutes?

Why not let it sit there for say 10 or 15 minutes - grab yourself a book or a beer in the meantime, whatever you prefer ...

Waited 15 minutes.
Only hard poweroff by pressing 5 seconds on the power button got the PC out of this state...

From one of the older kernels, you could still do

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urpmi --replacepkgs --replacefiles kernel-desktop-latest-3.19.0-2.mga5

to reinstall. Or

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urpme kernel-desktop-latest-3.19.0-2.mga5; urpmi kernel-desktop-latest-3.19.0-2.mga5

I think the issue is in /boot/grub2/grub.cfg

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        menuentry 'Mageia, with Linux 3.19.0-desktop-2.mga5' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.19.0-desktop-2.mga5-advanced-af743c5f-93f8-4b43-89f8-b7725fc63605' {
                set gfxpayload=text
                insmod gzio
                insmod part_gpt
                insmod ext2
                set root='hd3,gpt2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,gpt2 --hint-efi=hd3,gpt2 --hint-baremetal=ahci3,gpt2  af743c5f-93f8-4b43-89f8-b7725fc63605
                else
                  search --no-floppy --fs-uuid --set=root af743c5f-93f8-4b43-89f8-b7725fc63605
                fi
                echo    'Loading Linux 3.19.0-desktop-2.mga5 ...'
                linux   /boot/vmlinuz-3.19.0-desktop-2.mga5 root=/dev/sdd2 ro   nokmsboot splash quiet resume=UUID=0970e4c4-20a0-4852-bb6b-1e24413a0015 net.ifnames=0
        }
        menuentry 'Mageia, with Linux 3.19.0-desktop-1.mga5' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.19.0-desktop-1.mga5-advanced-af743c5f-93f8-4b43-89f8-b7725fc63605' {
                set gfxpayload=text
                insmod gzio
                insmod part_gpt
                insmod ext2
                set root='hd3,gpt2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,gpt2 --hint-efi=hd3,gpt2 --hint-baremetal=ahci3,gpt2  af743c5f-93f8-4b43-89f8-b7725fc63605
                else
                  search --no-floppy --fs-uuid --set=root af743c5f-93f8-4b43-89f8-b7725fc63605
                fi
                echo    'Loading Linux 3.19.0-desktop-1.mga5 ...'
                linux   /boot/vmlinuz-3.19.0-desktop-1.mga5 root=UUID=af743c5f-93f8-4b43-89f8-b7725fc63605 ro   nokmsboot splash quiet resume=UUID=0970e4c4-20a0-4852-bb6b-1e24413a0015 net.ifnames=0
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd-3.19.0-desktop-1.mga5.img
        }


In the working kernel there is root=UUID=af743c5f-93f8-4b43-89f8-b7725fc63605.
In the non-working kernel there is root=/dev/sdd2
This file is auto-generated.
How do I generate it correctly?

I have had ALWAYS issues with kernel updates on Mageia 4 also when the OS is installed on an external USB disk.
With Mageia 4 I could solve it myself in grub configuration.
So here again Mageia 5 beta 3 is installed on an external USB disk...

When comparing both grub2 menu entries, a more important difference can be discovered.

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                    echo    'Loading initial ramdisk ...'
                    initrd  /boot/initrd-3.19.0-desktop-1.mga5.img


These 2 lines are missing in the menu entry for 3.19.0-desktop-2 !!!!

Can I edit this file /boot/grub2/grub.cfg?
Will it remain valid until the next kernel update?
When I run grub2-mkconfig, I get exactly the same file containing the error.
What is the input of grub2-mkconfig?

you can edit the menuentry in your grub.cfg as such

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menuentry 'Mageia, with Linux 3.19.0-desktop-2.mga5' --class mageia --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.19.0-desktop-2.mga5-advanced-af743c5f-93f8-4b43-89f8-b7725fc63605' {
                set gfxpayload=text
                insmod gzio
                insmod part_gpt
                insmod ext2
                set root='hd3,gpt2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,gpt2 --hint-efi=hd3,gpt2 --hint-baremetal=ahci3,gpt2  af743c5f-93f8-4b43-89f8-b7725fc63605
                else
                  search --no-floppy --fs-uuid --set=root af743c5f-93f8-4b43-89f8-b7725fc63605
                fi
                echo    'Loading Linux 3.19.0-desktop-2.mga5 ...'
                linux   /boot/vmlinuz-3.19.0-desktop-2.mga5 root==UUID=af743c5f-93f8-4b43-89f8-b7725fc63605 rw
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd-3.19.0-desktop-2.mga5.img
 }

Obviously, your initrd line is missing.

Can you get this back by

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# dracut -f
# grub2-mkconfig -o /boot/grub2/grub.cfg

2 points
o your grub menu shows

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linux   /boot/vmlinuz-3.19.0-desktop-1.mga5 .......
initrd  /boot/initrd-3.19.0-desktop-1.mga5.img

instead of

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linux   /boot/vmlinuz-desktop ..........
initrd   /boot/initrd-desktop.img


o You have "net.ifnames=0" in your linux line.
Do you still need this with newer systemd?
Did you manually modify your grub.cfg?

What I did now:

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dracut -f --fstab /boot/initrd-3.19.0-desktop-2.mga5.img 3.19.0-desktop-2.mga5
grub2-mkconfig -o /boot/grub2/grub.cfg


Now my grub.cfg looks fine for all three kernels:

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Generating grub configuration file ...
Found theme: /boot/grub2/themes/maggy/theme.txt
Found linux image: /boot/vmlinuz-desktop
Found initrd image: /boot/initrd-desktop.img
Found linux image: /boot/vmlinuz-3.19.0-desktop-2.mga5
Found initrd image: /boot/initrd-3.19.0-desktop-2.mga5.img
Found linux image: /boot/vmlinuz-3.19.0-desktop-1.mga5
Found initrd image: /boot/initrd-3.19.0-desktop-1.mga5.img
Found Mageia 4 (4) on /dev/sda1
done

And I am now running 3.19.0-desktop-2.mga5

gohlip, to answer your two points:
1. there are 3 menuentries, also the one you mention, which are symbolic links to the latest kernel, I only showed the "numbered" ones.
2. commercial apps like Matlab from the Mathworks and Mathematica from Wolfram, still require eth0 for their license.
What I did was:

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su
emacs /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT= add "net.ifnames=0" to end of string
save and close emacs
update-grub2

Good all is well.
Thanks for the explanations for the points.
Cheers. Take care.

Please mark the thread accordingly by editing the topic of the first post and prefix it by [SOLVED], thanks