Need Help with Grub

[Lisa Kachold]

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
<mark at phillipsmarketing.biz>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
>
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