From Grub fails after update - #3 by librewish
Some unlucky times that your system is not bootable and the only advised option is to use
chroot from a Live ISO to repair the installed system (for example, to (re)install the bootloader), here is the suggested method:
steps required to
chroot to your installed Garuda installation (btrfs)
- Boot to a Garuda usb Live ISO
- Start a terminal and
- Find your installed system (btrfs) partition, you need the
Warning: Remember that your Live booted system partitions will be included (mounted) in the above report.
- Mount and chroot into the installed system (example partition
sudo mkdir -p /mnt/broken sudo mount /dev/nvme0n1p2 /mnt/broken sudo garuda-chroot /mnt/broken/@
- Your terminal will enter in the installed system.
Whatever you do there is applied to the installed system.
You will have
rootrights/privileges, so you don't need to add
sudowhen you run system level commands.
Your $HOME (and other active environment variables) are those from
In case you want to install the bootloader
- If the system is installed in Legacy BIOS/MBR
Find your device that holds MBR and install grub
lsblk -no PKNAME /dev/nvme0n1p5 # nvme0n1 <== use this in next command (/dev/nvme0n1) grub-install /dev/nvme0n1
- If the system is installed in UEFI
Find existing $esp partitions if more than one
parted -l | grep -iE "^Disk /|esp" | grep -B1 esp Disk /dev/nvme0n1: 256GB 1 1049kB 274MB 273MB fat32 EFI system partition boot, esp 4 87,4GB 87,9GB 537MB fat32 EFI system partition boot, esp
In this example (my PC) there is
/dev/nvme0n1p1, used for Windows and
/dev/nvme0n1p4 used for my Linux system.
Select the proper $esp partition (you may check your
/etc/fstab if you are not sure) and mount it inside
mount /dev/nvme0n1p4 /boot/efi
Then install grub bootloader and update grub
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=garuda --recheck update-grub
Do not forget to exit
chrootnormally, before you close the terminal
chroot session with
Warning: If there were any unusual or unknown errors in this procedure, it would be better to ask for some advice in the forum, or search Archwiki or the web for info.
Now you are ready to reboot to your system!