Florin wrote: > What you need to do is boot from the rescue CD, mount the boot > partition, edit the menu.lst to replace hda3 with hda4 . Save and > reboot. Very close. In /boot/grub/menu.lst , in the section: ## default kernel options for automagic boot options I changed # kopt=root=/dev/hda3 ro to # kopt=root=/dev/hda5 ro and saved the file. Then I ran >update-grub This results in menu entries like: title Ubuntu, kernel 2.6.15-29-386 root (hd0,0) kernel /vmlinuz-2.6.15-29-386 root=/dev/hda5 ro quiet splash initrd /initrd.img-2.6.15-29-386 savedefault boot And now it boots... Notes: The commented out "defaults" in menu.lst allow update-grub to know the pattern of the menu entries. The latter have to change periodically - e.g. when a new kernel version becomes available. Note the the line: root (hd0,0) sets GRUB's root not the operating system's root. The later is specified in the "root=" part of the kernel line. Note that the path to the files passed to kernel and initrd are relative to Grub's root set by the root command. Thanks to Florin and others for their assistance with my problem. I learned a lot and finally got it fixed. Fred -- Fred H. Olson Minneapolis,MN 55411 USA (near north Mpls) Communications for Justice -- Free, superior listserv's w/o ads: http://justcomm.org My Link Pg: http://fholson.cohousing.org 612-588-9532 (7am-10pm CST/CDT) Email: fholson at cohousing.org