Re: [Xen-users] Root fs image crated by Yast Xen

[TAIRA Hajime <htaira@xxxxxxxxx>]

Hi, Noniko.

I fitted same thing. When I was verifying Xen on SLES10 Beta.

/var/lib/xen/images/vm1/hda. Wonderful.

It is whole disk image.

I tried to loopback mount in order to see what is in this image file.

But I can't. The error message is:

mount: wrong fs type, bad option, bad superblock on /dev/loop0,

missing codepage or other error

This error is correct. Because hda is not filesystem.

Please try following step.

1. Mapping hda to /dev/loop0.

# losetup /dev/loop0 /var/lib/xen/images/vm1/hda

2. Look at geometric information on /dev/loop0.

# fdisk -l -u /dev/loop0

Disk /dev/hda: 30.7 GB, 30738677760 bytes

255 heads, 63 sectors/track, 3737 cylinders, total 60036480 sectors

Units = sectors of 1 * 512 = 512 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/loop0p1           63      208844      104391   83  Linux

/dev/loop0p2       208845    60034904    29913030   83  Linux

3. Calculate the offset. offset = Start x Unit size

# offset=((63*512))

4. Mapping hda1 in /dev/loop0

# losetup -o $offset /dev/loop1 /dev/loop1

5. Mount /dev/loop1 to /mnt/vm1_hda1

# mkdir /mnt/vm1_hda1

# mount /dev/loop1 /mnt/vm1_hda1

That's all.

.::.:... .::....: .::...:: .::.:.:: .::..:.: .:::..:.

TAIRA Hajime <htaira@xxxxxxxxx>

             web: http://pantora.net/

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