Okay, with some investigative work and some pointers from Fred, this now appears to be an issue with the megaraid kernel module being missing. In particular the megaraid_mbox and megaraid_mm modules are not in the boot kernel image. Both of those modules are loaded by the rescue CD, which explains why I can see all the filesystems when booting from rescue, but not the on-disk image. However, I've tried to do a mkinitrd to force them and it complains. # mkinitrd -v -f --with=megaraid_mbox /boot/initrd-2.6.9-1.667.img 2.6.9-1.667 ... No module megaraid found for kernel 2.6.9-1.667, aborting. What's the trick now to get the needed *.ko files into the initrd image? -- Deron Meranda