boot=/dev/hda7 map=/boot/map install=/boot/boot.b prompt timeout=50 vga=791 linear default=linux image=/boot/vmlinuz-2.2.12-20 label=linux initrd=/boot/initrd-2.2.12-20.img read-only root=/dev/hda7 ----- snip here ----- I did not "fiddle" with Linux at all before this error appeared ! Therefore I cannot really point to what has been changed or went wrong. Under the Internet I found many, many errors entries pointing to LILO not being able to load in a disk that is above the 1024 cylinders In my case LILO always worked so far, and I did not surely changed the disk size, done any repartitioning under Windows NT nor under Linux. Under Windows, I have run Program => PartitionMagic =>PartitionInfo and I am attaching the output of the command to this email in case you need to see in details my machine's partitioning. ATTEMPTS TO SOLVE IT =================== Thinking that the latest version of LILO "could" have fixed this problem, I have downloaded LILO 21.6.1-1 from http://rpmfind.net/linux/RPM/contrib/libc6/i386/lilo-21.6.1-1.i386.html I have then upgraded my LILO with : "rpm -Uhv .rpm" The upgrade completed fine, and then when I try to run /sbin/lilo I got: