Arch Linux

lincore

Member

Registered: 2022-12-10

Posts: 2

[Solved] Unable to boot after switching /boot parts and kernel update

Hello, I'm a little lost right now. I used windows' default 100MB efi partition when I installed arch and a few updates later I ran out of space. So I created a new fat32 partition with esp flag at the end of the disk, copied all files over, updated /etc/fstab, ran

sudo grub-install --efi-directory=/boot/efi
# (it couldn't find the efi dir by itself, I suppose it wants the dir on the old partition?)
grub-update -o /boot/grub/grub.cfg
# and finally
pacman -Syu
# which installed a new kernel (linux-6.0.11.arch1-1).

When I rebooted the old kernel was loaded (uname -a didn't match pacman -Qi). I downgraded the kernel, ran pacman -Syu again, same problem.

I suppose I missed a crucial step when I switched boot partitions. Can you tell me which one?

PARTED:
Number  Start   End     Size    File system  Name                  Flags
1      1049kB  106MB   105MB   fat32        EFI system partition  msftdata
2      106MB   30.0GB  29.9GB  ext4         root
3      30.0GB  256GB   226GB   ext4         home
4      256GB   256GB   524MB   fat32        boot                  boot, esp

---
FSTAB:
# /dev/sda2
UUID=b76b6e2f-2efa-47ce-bea8-479e46f70d22    /             ext4          rw,relatime    0 1

# /dev/sda4
UUID=6425-774B                 /boot         vfat          rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro    0 2

# /dev/sda3
UUID=abcd7dda-b55d-4631-9e7a-3a14e448e952    /home         ext4          rw,relatime    0 2

/swapfile               none          swap          defaults      0 0

---
❯ ls -l /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 10 Dec 10 13:04 6425-774B -> ../../sda4 (new /boot)
lrwxrwxrwx 1 root root 10 Dec 10 13:04 abcd7dda-b55d-4631-9e7a-3a14e448e952 -> ../../sda3
lrwxrwxrwx 1 root root 10 Dec 10 13:04 b76b6e2f-2efa-47ce-bea8-479e46f70d22 -> ../../sda2
lrwxrwxrwx 1 root root 10 Dec 10 13:04 E8E8-1248 -> ../../sda1 (old /boot)

---
/boot
├── EFI
│   ├── Boot
│   ├── EFI
│   └── GRUB
├── grub
│   ├── fonts
│   ├── grub.cfg
│   ├── grubenv
│   ├── locale
│   ├── themes
│   └── x86_64-efi
├── initramfs-linux-fallback.img
├── initramfs-linux.img
├── System Volume Information
└── vmlinuz-linux

Last edited by lincore (2022-12-10 12:32:35)

lincore

Member

Registered: 2022-12-10

Posts: 2

Re: [Solved] Unable to boot after switching /boot parts and kernel update

Ok I fixed it. Apparently 'grub-install --efi-dir' expects the efi partition root (/boot), not /boot/EFI. I don't know why so many sources say otherwise, maybe the behaviour was changed?