Kernel panic after update: Unable to mount root fs on unknown-block

Ask Fedora
1

I have an older kernel installed, 6.13.5, it boots fine. With kernel 6.13.9 I get:

KERNEL PANIC!
Please reboot your computer.
VFS: Unable to mount root fs on unknown-block(0,0)

Solved by generating the initramfs, using sudo dracut -vf --kver=6.13.9-200.fc41.x86_64. To find kver, run uname -r for an example and change the version to the one that is broken.

I am posting this here in case anyone else has this issue. Curious that the initramfs was not generated during the offline update.

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2

Had two updates over the past few weeks, both resulted in initramfs not being generated this fixed it!

3

This is usually caused by a DKMS failing to rebuild a driver … like Nvidia for example …
check your logs :slight_smile: