Xen users - May 2009 - Mounting images created with virt-install

Hi,

Once upon a time I''d manually create domU with `dd if=/dev/zero
of=/path/to/xen_image.img options`. I''ve started using virt-install but
would like to know how one mounts the image created by this command.

Trivial to mount an image created by dd;

 file /xen/bx2g.img 
/xen/bx2g.img: Linux rev 1.0 ext3 filesystem data (large files)

Note sure how to mount one created by virt-install

file /xen/cx32bit.img 
/xen/cx32bit.img: x86 boot sector; partition 1: ID=0x83, active,
starthead 1, startsector 63, 208782 sectors; partition 2: ID=0x83,
starthead 0, startsector 208845, 398\
4120 sectors, code offset 0x48

/sys/john



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John Maclen wrote:
> Note sure how to mount one created by virt-install
>
> file /xen/cx32bit.img 
> /xen/cx32bit.img: x86 boot sector; partition 1: ID=0x83, active,
> starthead 1, startsector 63, 208782 sectors; partition 2: ID=0x83,
> starthead 0, startsector 208845, 398\
> 4120 sectors, code offset 0x48
>   
Use losetup to create a /dev/loopN for the image file and then kpartx to 
create device files for the partitions.  If one of the partitions is 
used for LVM you''ll need to activate the volume group (and if
that''s the
same name as a volume group in dom0 you''re in for some head 
scratching).    See the man pages for losetup, kpartx and vgscan / vgchange.

Oh, and despite the name, kpartx does not have anything to do with KDE or X.

jch

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