How many drives do you have in this system. It's currently trying to boot the second HDA IDE drive, partition 4. It appears that your boot is actually stated as /dev/sda5 5 64.5kB 198GB 198GB logical ext3 boot I would try to change your system menu.1st to read hd0,5. ATA disks appear as /dev/sda while actually utilized as hd0 in GRUB: root (hd0,5) Which is the boot partition below. If you cannot boot that partition, verify it with fdisk; it's possible that you have gotten a virus that corrupts your boot sector. Boot your distro and select repair if possible. On Tue, Aug 10, 2010 at 10:48 AM, Mark Phillips wrote: > I have a system running Debian testing. It is a dual boot with a Windows > partition. It has worked for years, but now somehow grub got confused. When > I try to boot, I get an error 22 - partition not found. I booted uo knoppix, > and the drive is there and I can see all the files. > > menu.list has > title Debian GNU/Linux, kernel 2.6.26-2-686 > root (hd1,4) > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hdb5 ro > initrd /boot/initrd.img-2.6.26-2-686 > > parted from the knoppix disk shows: > (parted) print all > Model: ATA ST3200822A (scsi) > Disk /dev/sda: 200GB > Sector size (logical/physical): 512B/512B > Partition Table: msdos > > Number Start End Size Type File system Flags > 1 32.3kB 200GB 200GB extended > 5 64.5kB 198GB 198GB logical ext3 boot > 6 198GB 200GB 2048MB logical linux-swap > > > Model: ATA WDC WD2500AAJB-0 (scsi) > Disk /dev/sdb: 250GB > Sector size (logical/physical): 512B/512B > Partition Table: msdos > > Number Start End Size Type File system Flags > 1 32.3kB 250GB 250GB primary ext3 > > I remember mucking with the drives a long time (years) ago - I moved the > boot drive from the second position to the first position), but it booted > fine after that and ran for years. I am surprised that the menu.list shows > the boot drive in the second position. Anyway, when the system boots, the > grub menu comes up. I tried editing the boot parameters from > root (hd1,4) > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hdb5 ro > > to > root (hd0,4) > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hda5 ro > > but I get this error message: > > root (hd0,4) > Filesystem type is ext2fs, partition type 0x83 > kernal..... > [Linux-bz-Image, setup=0x3000, size=ox16ce50] > Error 24 Attempt to access block outside partition > > All of the data seems to be intact when viewed from Knoppix. > > Any ideas on how to fix grub and get the system to boot? > > Thanks, > > Mark > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > -- Office: (602)239-3392 AT&T: (503)754-4452 http://it-clowns.com "Faith is, at one and the same time, absolutely necessary and altogether impossible. " --Stanislav Lem