[Xen-users] read only disk option in domUs

[list user <xktnniuymlla@xxxxxxxxxxxxxx>]

Hi all,

Successfully running a built from source xen 3.0.2-2 & linux 2.6.16 on
fedora 4 with lvm.

I'm trying to share a read only /usr across multiple domU's.

Logical volume "/dev/vg0/usr" is read only.  Within the domU's fstab
/usr is "ro".  Here is the disk option from the domU definition.

disk = [ 'phy:vg0/fc4,hda1,w' ,
         'phy:vg0/usr,hda2,r' ,
         'phy:vg0/swap,hda3,w' ]

This fails with an unable to write block error.

Now if the vg0/usr volume is specified with 'w' it works without
complaint until I try to use it in a different domU.  Then the complaint
is that it is already in use in another guest domain.

Q 1: is inability to specify a phy: as read only a bug?
Q 2: what is the proper way to share/use a read only volume among domU's?

Thanks for any help,
Mike Wright


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