As it turns out, https://bugzilla.redhat.com/show_bug.cgi?id=578975 is
not a bug, but it is a functional regression. From the upstream bug:
09:07 < aliguori> jdstrand, you're adding a scsi disk to an existing scsi
adapter
09:07 < aliguori> lspci isn't going to change
09:07 < aliguori> but you won't see anything in /proc/partitions until you
rescan the scsi bus
09:07 < aliguori> which is not something that happens automatically
09:07 < aliguori> it's *not* pci hot add
09:08 < aliguori> it's scsi hot add
09:08 < aliguori> http://kbase.redhat.com/faq/docs/DOC-3942
09:08 < aliguori> this is different than what older libvirts did
09:08 < aliguori> older libvirt added a new scsi controller for every disk add
09:08 < aliguori> which was incorrect
09:14 < jdstrand> aliguori: I'm just used to seeing this show up in the guest,
so the new behavior, while I understand it, needs to be dealt
with in applications that depended on the previously faulty
behavior
09:14 < aliguori> yup
So, after using attach-device, I perform the following:
echo "- - -" > /sys/class/scsi_host/host0/scan
Then the disk shows up in the disk.
** Bug watch added: Red Hat Bugzilla #578975
https://bugzilla.redhat.com/show_bug.cgi?id=578975
--
[lucid] merge libvirt to 0.7.7
https://bugs.launchpad.net/bugs/553737
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