Vvc at 20:23, 11 July 2008

2008-07-11T20:23:02Z

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If you created your DomU guest by exporting the whole disk and not partitions, here is how you access it's file system from Dom0:

<pre>
# fdisk -luC 1 /dev/vg0/xenmike

Disk /dev/vg0/xenmike: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders, total 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/vg0/xenmike1 * 63 208844 104391 83 Linux
/dev/vg0/xenmike2 208845 19904534 9847845 83 Linux
/dev/vg0/xenmike3 19904535 20948759 522112+ 82 Linux swap / Solaris

</pre>

We want to mount second partition. First calculate offset, we take start value for this partition and multiply it by sector size: '''512 * 208845 = 106928640'''

Now we mount it:

<pre>
# mount -o loop,offset=106928640 /dev/vg0/xenmike -t ext3 /v
# ls -l /v
total 100
drwxr-xr-x 2 root root 4096 Jun 26 04:04 bin
drwxr-xr-x 2 root root 4096 Jun 25 09:53 boot
drwxr-xr-x 2 root root 4096 Jun 25 09:53 dev
drwxr-xr-x 67 root root 4096 Jul 11 13:48 etc
....
</pre>

DomU filesystem - Revision history

Vvc at 20:23, 11 July 2008