chroot to fix grub | Arch Linux Community | Page 1

scenic verge May 18, 2024, 4:21 PM

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chroot to fix grub

cloud maple May 18, 2024, 5:10 PM

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Uh, what's the issue?

scenic verge May 18, 2024, 5:12 PM

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cloud maple Uh, what's the issue?

im unsure on how to mount and then chroot into my arch installation

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let me a ttach my lsblk

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Just sudo mount /dev/nvme0n1p2 /mnt?

full fiber May 18, 2024, 5:14 PM

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Yup that's how you do it

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You mount your partitions to the appropriate places and then arch-chroot /mnt

scenic verge May 18, 2024, 5:15 PM

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scenic verge May 18, 2024, 5:15 PM

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full fiber You mount your partitions to the appropriate places and then `arch-chroot /mnt`

like this?

full fiber May 18, 2024, 5:15 PM

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Did you install arch on that partition?

scenic verge May 18, 2024, 5:16 PM

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Yes

full fiber May 18, 2024, 5:16 PM

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It says you have no proc directory

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Do ls /mnt

scenic verge May 18, 2024, 5:16 PM

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full fiber May 18, 2024, 5:17 PM

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Oh you use btrfs

scenic verge May 18, 2024, 5:17 PM

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hmm

full fiber May 18, 2024, 5:17 PM

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I think you have to do arch-chroot /mnt/@ instead

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Idk I am not good at btrfs I always use ext4

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You can look up how to mount btrfs subvolumes online

scenic verge May 18, 2024, 5:18 PM

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Thanks

cloud maple May 18, 2024, 5:26 PM

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scenic verge

You'll want to unmount the partition as mount the subvolume with mount /dev/nvme0n1p2 -o subvol=@ /mnt

scenic verge May 18, 2024, 5:27 PM

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I'm in chroot already

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Now I need help reinstalling grub

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Lol

cloud maple May 18, 2024, 5:34 PM

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scenic verge

You're not in chroot

late cargo May 18, 2024, 5:35 PM

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trollface

scenic verge May 18, 2024, 5:36 PM

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cloud maple You're not in chroot

The command is right to right?

cloud maple May 18, 2024, 5:36 PM

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What?

scenic verge May 18, 2024, 5:38 PM

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cloud maple What?

Autocorrect fucked me lol, this command is right, right?

cloud maple May 18, 2024, 5:39 PM

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👍

scenic verge May 18, 2024, 5:39 PM

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cloud maple 👍

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Ohh they're not mounted anymore I believe

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No nvm

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Or

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Is it

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I'm not sure..

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cloud maple May 18, 2024, 5:44 PM

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I think it's an issue with chrooting into subvolume like that

cloud maple May 18, 2024, 5:44 PM

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cloud maple You'll want to unmount the partition as mount the subvolume with `mount /dev/nvm...

Exit out of chroot do this

full fiber May 18, 2024, 5:44 PM

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Did you mount nvme0n1p1 before chroot?

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You usually mount it to either /boot or /boot/efi

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If /boot is empty mount it there. If /boot/efi (efi in lowercase) exists then mount it there instead

scenic verge May 18, 2024, 5:46 PM

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cloud maple Exit out of chroot do this

scenic verge May 18, 2024, 5:47 PM

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full fiber You usually mount it to either /boot or /boot/efi

Mine is mounted at /boot pretty sure

full fiber May 18, 2024, 5:47 PM

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Exit chroot and type lsblk

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It'll say if it's mounted or not

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And you need to make sure you mount it inside the /mnt/boot folder not /boot

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/boot outside of chroot is the iso's boot directory

scenic verge May 18, 2024, 5:48 PM

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@full fiber

full fiber May 18, 2024, 5:54 PM

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You have it mounted twice

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Run umount /mnt/boot once

scenic verge May 18, 2024, 5:58 PM

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full fiber You have it mounted twice

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It's mounted once outside chroot

full fiber May 18, 2024, 6:00 PM

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Doesn't matter make sure it's mounted only once outside of it

scenic verge May 18, 2024, 6:03 PM

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Oki

scenic verge May 18, 2024, 6:03 PM

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full fiber Doesn't matter make sure it's mounted only once outside of it

Ok

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Still doesn't work

full fiber May 18, 2024, 6:04 PM

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p1 is your EFI partition right? Do you know if it could be swap?

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Type "lsblk -f"

scenic verge May 18, 2024, 6:05 PM

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scenic verge May 18, 2024, 6:05 PM

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full fiber p1 is your EFI partition right? Do you know if it could be swap?

It could be swap

full fiber May 18, 2024, 6:06 PM

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If it is then you haven't made an EFI partition

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If you just installed arch you should probably reinstall and make it properly

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Unless you are not using a UEFI system?

scenic verge May 18, 2024, 6:07 PM

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Idk I used arch install

full fiber May 18, 2024, 6:07 PM

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Yeah that makes sense. It's really buggy

scenic verge May 18, 2024, 6:07 PM

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I mean arch worked then grub broke

full fiber May 18, 2024, 6:08 PM

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Type cat /sys/firmware/efi/fw_platform_size

scenic verge May 18, 2024, 6:14 PM

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full fiber Type cat /sys/firmware/efi/fw_platform_size

64

full fiber May 18, 2024, 6:15 PM

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You do have UEFI then

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Do lsblk -f

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Outside chroot

scenic verge May 18, 2024, 6:16 PM

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full fiber You do have UEFI then

full fiber May 18, 2024, 6:17 PM

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Yeah it's not swap

scenic verge May 18, 2024, 6:17 PM

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Ok gud

full fiber May 18, 2024, 6:17 PM

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Oh wait I may have found the issue

scenic verge May 18, 2024, 6:18 PM

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Huh

full fiber May 18, 2024, 6:18 PM

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When typing the grub install command

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You used =boot/

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I think you need to use =/boot/

scenic verge May 18, 2024, 6:18 PM

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I tried both

full fiber May 18, 2024, 6:19 PM

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Idk then

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Could be due to the way you have mounted your btrfs partition

scenic verge May 18, 2024, 6:22 PM

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Is there supposed to be another boot directory in /boot/?

full fiber May 18, 2024, 6:24 PM

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No. You can either mount on /boot or /boot/efi. You have it mounted on /boot and that should work

scenic verge May 18, 2024, 6:24 PM

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Should I remove the other /boot?

full fiber May 18, 2024, 6:24 PM

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What other boot

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Oh

scenic verge May 18, 2024, 6:24 PM

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The boot in boot

full fiber May 18, 2024, 6:24 PM

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Why did you make that

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Ok hear me out

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Exit chroot

scenic verge May 18, 2024, 6:25 PM

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Ok

full fiber May 18, 2024, 6:25 PM

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Unmount the boot partition completely (Make sure it doesn't show it as mounted anywhere in lsblk)

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Then type mkfs.fat -F 32 /dev/nvme0n1p1

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This will completely format your boot partition so you can do a clean grub install

scenic verge May 18, 2024, 6:26 PM

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Will this erase my disk?

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Ohh only boot good

full fiber May 18, 2024, 6:26 PM

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scenic verge Will this erase my disk?

It shouldn't as long as you format the correct drive

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Which if I remember correctly is p1 which is just 1gb long

scenic verge May 18, 2024, 6:27 PM

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Ok Formated

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Now remount?

full fiber May 18, 2024, 6:27 PM

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Yep

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Also

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It's usually better to mount it to /boot/efi

scenic verge May 18, 2024, 6:27 PM

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I thought that was outdated

full fiber May 18, 2024, 6:27 PM

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Nah

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If it doesn't let you, you just need to run mkdir /mnt/boot/efi

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The boot folder will still exist, if will just be empty

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You will also need to edit /etc/fstab

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All you need to do is just change /boot to /boot/efi though

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You'll also need to reinstall the Linux package which contains the kernel

scenic verge May 18, 2024, 6:30 PM

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full fiber May 18, 2024, 6:30 PM

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Add slash in front

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You are currently in /root which is the root users home folder

scenic verge May 18, 2024, 6:30 PM

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Ok

scenic verge May 18, 2024, 6:32 PM

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full fiber You'll also need to reinstall the Linux package which contains the kernel

How

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Also is grub installed now or do I still have to do that?

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Both mounted

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Now what

full fiber May 18, 2024, 6:35 PM

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Edit fstab if you haven't already

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And install grub to /boot/efi

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Make sure to add the slash at the beginning

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Also do this inside chroot

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Wait

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You mounted your boot partition in the iso's boot directory

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Unmount it and mount it to /mnt/boot/efi

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Then chroot

scenic verge May 18, 2024, 6:40 PM

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full fiber And install grub to /boot/efi

Huh

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I hate canonical

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trollface

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At this point fuck it I should've just reinstalled

full fiber May 18, 2024, 6:50 PM

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scenic verge I hate canonical

Canonical doesn't make arch 😭

cloud maple May 18, 2024, 6:53 PM

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scenic verge

No space after =

scenic verge May 18, 2024, 8:15 PM

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I can close this now

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I just reinstalled arch

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Lul

#chroot to fix grub