Comment 17 for bug 211726

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Patrick Domack (patrickdk) wrote :

The issue is very simple:

in the /etc/xen/scripts/block script it creates the loopback device twice

First it does it with losetup /dev/loopx /some-image
Then if you want read-only it does
losetup -r /dev/loopx /some-image
and this second one fails cause the first one already mounted it read/write.