Update went wrong, now initramfs is not found

[GalaxyMaster]

When I was installing the latest update for the stable branch through the software updater, my screen froze during the checking space stage. After 10 seconds my laptop restarted on its own and now I can't boot into manjaro anymore because /boot/initramfs-4.4-x86_64.img is not found by grub. I assume it was in the middle of updating the kernel when it restarted, causing it to get corrupted or it was simply deleted. What can I do to get my laptop to a normal state again short of backing up /home and reinstalling?

[jonathon]

Boot with a Live CD and reinstall GRUB, e.g. https://wiki.manjaro.org/index.php/Restore_the_GRUB_Bootloader

[GalaxyMaster]

Boot with a Live CD and reinstall GRUB, e.g. https://wiki.manjaro.org/index.php/Restore_the_GRUB_Bootloader

Would this restore the initramfs.img if it was somehow deleted? Or would I have to do something else for that?

[jonathon]

Hm. You might also need to chroot and do a `mkinitcpio -P` (or reinstall the kernel which will trigger the same).

("-P" means "do it for all kernels" so you don't have to worry about which ones are missing).

It's wise to keep a second kernel installed for this reason - or you should be able to do this via the 'fallback' image.

[GalaxyMaster]

The fallback image doesn't work either, and grub gives the same error. How do I reinstall the kernel from a live USB?

[jonathon]

Load the live environment
chroot
Install the kernel

More details on the wiki page (I'm assuming you're happy running `pacman -S linux44`).

[eugen-b]

If chrooting via the manual method don't forget to mount --bind /run in rder to be able to install the kernel. Don't know if mhwd-chroot or manjaro-chroot commands do it automatically...