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possiblylinux127@lemmy.zip

I guess I borked my System (lemmy.today)

submitted 4 weeks ago* (last edited 4 weeks ago) by gpstarman to c/linuxquestions@lemmy.zip

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Context: I updated my CachyOS (Arch) BTRFS system. Some new things caused few problems especially brave browser(missing tabs), some icons missing.

So I wanted to go back to previous snapshot.

What I did: I first restored my home subvol which I saved before update. I worked.

Then I tried to restored my root partition. This is where I got the problem.

I got this error.

1001090084

I would really appreciate URGENT help

If you need any more details I can provide.

EDIT

I used BTRFS Assistant to restore the root partition. And I did it while the OS is running.

( I previously did that and got no issues )

I pressed crtl+d and got 👇🏽

I typed my password and went into maintenance. Typed journalctl -xb and got 2667 lines 😵‍💫. While scrolling mindlessly, this looked like something 👇🏽

👉🏽

This is my refind_linux.conf 👇🏽

"Boot with standard options"    "quiet zswap.enabled=0 nowatchdog splash rw rootflags=subvol=/@ cryptdevice=UUID=60ecb22d-7685-43c2-ae2a-a2ad0c531cc7:luks-60ecb22d-7685-43c2-ae2a-a2ad0c531cc7 root=/dev/mapper/luks-60ecb22d-7685-43c2-ae2a-a2ad0c531cc7"

"Boot to single-user mode"    "quiet zswap.enabled=0 nowatchdog splash rw rootflags=subvol=/@ cryptdevice=UUID=60ecb22d-7685-43c2-ae2a-a2ad0c531cc7:luks-60ecb22d-7685-43c2-ae2a-a2ad0c531cc7 root=/dev/mapper/luks-60ecb22d-7685-43c2-ae2a-a2ad0c531cc7" single

"Boot with minimal options"   "ro root=/dev/mapper/luks-60ecb22d-7685-43c2-ae2a-a2ad0c531cc7"

This my OS partition 👇🏽

This is my subvol layout 👇🏽 (CachyOS default)

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[–] gpstarman 1 points 3 weeks ago

Short Answer: No, kernels are not snapshot ted

Long Answer: It's bit weird in my case.

Boot, EFI, Root are three separate partitions in my case.

Root mounts to /

Boot mounts to /Boot

Efi mounts to /boot/efi

It is this way because when I initially partitioned the EFI, I gave very less storage. But linux kernels are bigger than that. So, either I have move the partition. Which I didn't prefer because It'll take a lot of time and it said possibility of data loss.

So, I simply created new partition.

By default, CachyOS only snapshot /@ and /@/home. Which didn't include /boot because it's a separate partition it's own and not even BTRFS.