$ git clone -n https://github.com/xcp-ng-rpms/ipxe.git /var/lib/mock/v8.0-base-998-404/root/chroot_tmpdir/scmroot/ipxe
Cloning into '/var/lib/mock/v8.0-base-998-404/root/chroot_tmpdir/scmroot/ipxe'...
$ git reset --hard 266be45fcc669aee75830df02389e1f78cd401eb
Downloading SOURCES/ipxe-20121005.tar.gz (2.8 MB)
HEAD is now at 266be45 Add BuildRequires: gcc