The disks were not being added to the qemu xmls, so this was clearly not the guest fault. As suggested on Administration Guide: "Note: Generally you should not choose an older version of the OS than the version in the image. For example, choosing CentOS 5.3 to support a CentOS 5.4 image will in general not work. In those cases you should choose Other."
Well, this doesn't seem to fall inside that "generally". Following that advice, i choosed "Other Ubuntu (64 bit)", but for Ubuntu 12.04 - 64 bit, you must choose "Ubuntu 10.04 (64 bit)" or additional disks will not work. Everything else seems to be running fine this way. I'll post back If I find any caveats on this. El 28/11/2012 18:53, "Jorge Suárez de Lis" <y...@jorgesuarezdelis.name> escribió: > > I'm guessing KVM hypervisor? > > Yes, KVM hypervisor. Sorry for the omission. > > > If so, I had this problem and was related to > > some libvirt cache, I had to reboot the VM in order to be able to use the > > disk. Well not reboot, stop and start actually. > > I tried starting and stopping the machines several times and no dice. > Also, adding disks on the fly and with the machines stopped. > > Thanks for the tip though. >
