Package: grub-installer Version: 0.0.5 Severity: grave grub-installer invokes grub-install, which is not present: On which device should GRUB be installed? ... [default = (hd0)]> <Enter> chroot: cannot execute /sbin/grub-install: No such file or directory grub-installer's postinst exited with status 256 It should use apt-install to install the grub package first. Matt