Created attachment 668479 [details] hostnamectl.diff Description of problem: virt-sysprep cannot set the hostname on Fedora 18, since Fedora 18 introduced a stupidly over-complicated way to set the hostname. Version-Release number of selected component (if applicable): libguestfs 1.20 How reproducible: 100% Additional info: I ran the 'hostnamectl' command on a snapshot and diff'd the two images to find out what it was doing. The diff is attached, but note that it contains a lot of extraneous changes because I rebooted the machine in between.
You should use noatime to get a relevant diff. Looking at actual mtime changes and ignoring changes to /tmp, the affected files are hostname (for the "static" hostname), machine-info (for the "pretty" hostname) and resolv.conf (for the domain name).
Fixed in: 0daa83cc9116a537cf154088a5a47c5c43ee6444 d2abdddf61c7bd0c6fc79dd83aa4332e213dc7ba