Quoting "IDAGroup - R.W.Muller" <robin@xxxxxxxxxxx>:
Ok, I guess it has not really something to do with LVM, cause I just
installed a (working!)
Centos5 guest into a (also working) Centos5 dom0 as imagefile. When I
try to mount the image
I get:
[root@serv106 ~]# mount -o loop /disk.img /mnt/loop/
mount: you must specify the filesystem type
So, very similar to the error before (actually the same). What is wrong
with my guest installation
that those are booting fine, but are not mountable?
Thanks for any help here,
Robin
This is because you are attempting to mount the entire disk.
use sfdisk -l -uS /disk.img to determine what sector the partition you
wish to mount starts at. then mount it with the offset option. For
example:
server30:/etc/xen/vm # ls /dev/xendata/
volume0 volume1 volume2 volume3
server30:/etc/xen/vm # sfdisk -l -uS /dev/xendata/volume3
Disk /dev/xendata/volume3: 0 cylinders, 0 heads, 0 sectors/track
Warning: The partition table looks like it was made
for C/H/S=*/255/63 (instead of 0/0/0).
For this listing I'll assume that geometry.
Units = sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/xendata/volume3p1 * 63 20964824 20964762 7 HPFS/NTFS
/dev/xendata/volume3p2 20964825 125821079 104856255 7 HPFS/NTFS
start: (c,h,s) expected (1023,254,63) found (1023,0,1)
/dev/xendata/volume3p3 0 - 0 0 Empty
/dev/xendata/volume3p4 0 - 0 0 Empty
server30:/etc/xen/vm # mount -o loop,ro,offset=$(( 512*63 ))
/dev/xendata/volume3 /mnt/windows/
server30:/etc/xen/vm # ls /mnt/windows
AUTOEXEC.BAT Inetpub System Volume Information pagefile.sys
CFusionMX7 MSDOS.SYS WINDOWS qpmd8378.bin
CONFIG.SYS NTDETECT.COM boot.ini
Documents and Settings Program Files msizap.exe
IO.SYS RECYCLER ntldr
If you image contains a LVM partition, then it becomes a bit more complicated.
Use losetup with the offset option to loop your image/partition
Use pvscan to scan the loopback device
Use vgchange -ay to activate the volumes
Mount the volumes.
Let me know if that answers your question..
-Errol
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