Installing Mageia broke distro in anothe rpartition

[yosaba]

I recently installed Mageia 6 on a 2014 lenovo W540 that had another distribution already installed in another partition.

Now when I try to boot the other distro, I get a kernel panic.

Kernel panic -- not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Any ideas on how to boot the orphaned distro?

Thanks,

[ChuangTzu]

you didn't setup grub properly or did not update grub:
viewtopic.php?f=4&t=11686&p=68121&hilit=dual+boot+2+linux#p68121
https://askubuntu.com/questions/847000/ ... ux-distros
https://superuser.com/questions/940782/ ... oot-system
https://unix.stackexchange.com/question ... ux-distros

[yosaba]

Hi Chuang Tzu,

Thanks for your comments. You're right, I didn't setup grub -- Mageia did. Just to be clear about the process: I had a machine with another distro on it. I installed Mageia and in the process partitioned the single hard drive to make room for Mageia. The Mageia live version installed itself and then installed grub2 and the boot menu includes entries for the other distro. Mageia boots fine but when I use the boot menu entries for the other distro, I get the kernel panic noted above.

(I have done similar things scores of times and never had the installing distro set up grub in a way that fails to boot the previously existing distros.)

The menuentry in grub.cfg has the correct UUID for the partition of the other distro. It does, however, list the ismod as "ext2" when it is "ext4".

Thanks

[doktor5000]

You may want to have a look at https://wiki.mageia.org/en/Mageia_6_Err ... bootloader