So, 3 months later. It turned out that for OSTree, using extlinux was not going to work for modern UEFI machines, and we needed to support grub2. That work is in progress now; see: https://github.com/projectatomic/rpm-ostree/commit/15ecaacd36bfcb91181400a7399461deef57e062 https://git.gnome.org/browse/ostree/commit/?id=d546abfa2a8c527d548b1be0ceea9c46d5faf2e3 https://lists.fedorahosted.org/pipermail/anaconda-patches/2014-October/014168.html What I ended up doing was a "15_ostree" that hooks into GRUB2's config. This gets us something working today. It'd clearly be better though to unify bootloader config files - the key decision is: 1) Push forward with mjg59's fork of the BLS 2) Have bootloaders implement syslinux 3) Live with the current setup (which I know ostree makes somewhat worse unfortunately) _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list