Fix bootloader for ubuntu / pop os

fix_bootloader.sh

# Pop OS: Repair the bootloader manual - https://support.system76.com/articles/bootloader/

# Unlock LUKS volume
sudo cryptsetup luksOpen /dev/nvme0n1p3 cryptdata
sudo lvscan
sudo vgchange -ay

# Mount unlocked LUKS volume
sudo mount /dev/mapper/data-root /mnt

# Mount EFI volume
sudo mount /dev/nvme0n1p1 /mnt/boot/efi

# Run the following to fix the bootloader (systemd-boot)
for i in dev dev/pts proc sys run; do sudo mount -B /$i /mnt/$i; done
sudo chroot /mnt
apt install --reinstall linux-image-generic linux-headers-generic
update-initramfs -c -k all
exit

sudo bootctl --path=/mnt/boot/efi install