package: installation-reports booting the installer with parameters expert26 vga=791 has unexpected consequences when installing LILO. The vga=791 parameter will appear in the append stanza causing LILO to abort installation. See section of lilo.conf image=/vmlinuz label=Linux read-only # restricted # alias=1 append="vga=791" initrd=/initrd.img Apparently slightly more logic is needed inside the installer when generating lilo.conf.