Boot

… by restoring GRUB for crypted disks After system update and reboot, GRUB failed with this error symbol 'grub_calloc' not found. fix it with these commands 1fsck /dev/nvme0n1p* 2efibootmgr -c --disk /dev/nvme0n1 3efibootmgr -v /dev/nvme0n1 check in your BIOS if EFI boot is always configured (link to /boot/efi/EFI/arch/grubx64.efi) in bonus, if you want to mount your crypted system 1cryptsetup open /dev/nvme0n1p3 data 2pvs 3vgs 4vgchange -ay 5lsblk -fs 6mount /dev/mapper/arch-root /mnt/ 7mount /dev/mapper/arch-home /mnt/home/ 8mount /dev/nvme0n1p2 /mnt/boot/ 9mount /dev/nvme0n1p1 /mnt/boot/efi/ # for UEFI systems 10arch-chroot /mnt GRUB by Archlinux Wiki