An Update Borked My Linux System. How Did I Fix It?

In my case it was completely different. But this video still helped me in narrowing it down by getting rid of the obvious first steps. I'm leaving this as a future reference to both myself and other people who come across the same problem. TL;DR: If you have other drives mounted onto the main Linux drive, this solution may be for you.

Since I'm dual booting Windows and Arch Linux I often tend to share files between them, and thus I always have Windows's main drive (C:\) mounted onto the Linux partition. This caused Arch to not boot after I updated Windows 10 to Windows 11. Turns out the solution wasn't too advanced. If I did "cat /etc/fstab" I could see the Windows drive had one UUID which it expected. But upon running "sudo blkid" I would notice the Windows drive UUID had changed, probably due to Windows 11 changing things. I simply had to copy the new UUID from "sudo blkid" and replace the UUID in "nvim /etc/fstab" with the new one. Funnily enough. When I was troubleshooting on my laptop, the desktop PC which was failed to boot still got into a terminal after 90 seconds. In doing so I could pretty much do all this solution work without a flashdrive probably assuming I have the patience to wait 90 seconds for the daemon to time out.

I would suggest updating only in tty because afaik it wont crash.

Why UEFI dbx updates for Linux Distros? I'm skeptical of allowing this firmware to update my POP__OS on an i5 12600K Z690 build? Any help is appreciated.

your method didn't help error /@/boot/vmlinuz-linux-lts don't /boot/mvlinuz-linux-lts

now do debian

me too!

Thank you, this already saved me once from re-installing!

After you’ve mounted your internal drive, when you run chroot, do you have to specify the location? (in this case /mnt )

Dang it! I got this in my feed a week ago but didn't watch it then! Just today after updating (successfully, I thought) my efi systemd entries completely disappeared along with my latest and lts kernel images, barring the intel-ucode. I kept a hard drive with EndeavourOS on it just in case, and googled for a while until learning about chroot (the first time I found the arch wiki useful!)... then as I was so close, followed some random internet user's advice to install a conflicting package and uninstalled a system package... then promptly forgot which package I uninstalled. That package is what the kernel used to rebuild itself, so reinstalling didn't help. Eventually I realized that their solution was needlessly complex - I could have just reinstalled the kernel - and facepalmed. I fiddled for a bit with systemd to try to manually build & edit the images & entries but eventually decided to just reinstall the system (I keep an installer script and could access the /home folder through the live usb, so I didn't have to go back to a backup).

Most important thing: I learned from my failure. Next time this happens, I won't make the same mistake, but rather just reinstall the kernel through chroot!

If my Window Manager crashed while performing an update, I would avoid this scenario by moving to a TTY and re-running the update before restarting.

Fortunately, in 18 years of using Linux, I've never had this problem so hopefully it's not a common issue.

Thank you Tiny Hands

I think its not ur kernel but grub
If ur kernel updates turns bad
U may go to grub and boot to old kernel
And downgrade d kernel

You can get trouble also vid this distro, i have that more then one time. Manjaro stabel! eh, dont think so. I think Manjaro its more dev and consol intress distro. And that its ok for some!

I’m not a big fan of updates unless something isn’t working. Furthermore, I do whole system backups so I can just go back in time to when my system worked.

Looking at the title i immediately knew that it was an Arch or arch based distro😅
I have tried running Manjaro multiple times, but the longevity was about 6 months, after which my system would be broke completely (and I'm not a power user who fiddles with system files a lot)

If you use Arch, you live dangerously. To avoid danger, use Fedora instead.

chroot /mnt/gentoo

source /etc/profile

export PS1=“(chroot) $PS1”

EDIT: i forgot to add the “ in the end of the export command

Im on gentoo running the latest kernel. almost everyday my cpu goes overtime when compiling it. Of course, I’m on a distribution Kernel, meaning it’s a bit more streamlined when updating.

One time for some reason both my Linux laptop and PC made my OS unable to start after update. I needed to install missing cryptography package which for some reason disappeared after my updates. Also pacman after chroot wasn't working so i needed to use pacstrap.