Current upstream has a rhel5.4 os dictionary entry that can be selected in virt-manager or via virt-install --os-variant. Users no longer need to use virtio26 to enable virtio support for RHEL guests. This change should be backported to 5.5: http://hg.fedorahosted.org/hg/python-virtinst/rev/bb6c6b4cf8ae
This should also be release noted, if the 'virtio26/Generic virtio' value was ever added to the docs.
Created attachment 378626 [details] Add RHEL5.4 osdict entry (and RHEL6, and F12)
This is built in python-virtinst-0_400_3-7_el5
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2010-0282.html