Sorry, I cannot get error display. I install transactional-server pattern on 6th core NUC, and make KVM VM server. I update VM server, move NVMe SSD from 6th core NUC to 12th core NUC and regenerate initrd grub.cfg on this command. transactional-update initrd grub.cfg but btrfs i/o error happen. run another config or initializing script on machine change?