Hello. I use a librebooted device and a signed kernel with the user password to boot full disk encrypted Trisquel system. Please look at the error message that I got when I tried to boot several days ago.
grub> cryptomount -a attempting to decrypt master key... Enter Passphrase for usb0,msdos1 (fyd01234-******-******...): Slot 0 opened grub> set root='lvm/******-******' grub> linux /vmlinuz error: unknown filesystem. grub> linux /boot/vmlinuz-5.6.**-generic error: unknown filesystem. grub> linux /boot/vmlinuz-5.10.**-gnu error: unknown filesystem. grub> The day before I got this, probably I did not updated the Trisquel system. I did not modified grub.cfg either. The file system is probably ext4. Of course I did not change the file system either. I had not got this error ever. I have another librebooted device (no signatures) and tried to boot with the HDD, GRUB returned the same error message. Please excuse my poor English. I hope that someone could guess how to fix this error. Quick search for the Internet did not see useful information, including here archive. Sincerely, Yamade
