Switch to GPT partitioning

With a `/boot` partition.  But today Anaconda doesn't expose an
API to explicitly label it `/boot` (or even change the filesystem
type).  We'll live with that for now.

Prep for UEFI.

src/gf-anaconda-cleanup

@@ -9,8 +9,20 @@ dn=$(dirname "$0")
 . "${dn}"/libguestfish.sh
 
 src="$1"
+shift
+skip_partition_fixups=
+if [ "${1:-}" = "--skip-partition-fixups" ]; then
+   skip_partition_fixups=1
+   shift
+fi
 
 set -x
+if [ "${skip_partition_fixups}" != 1 ]; then
+    coreos_gf_run "${src}"
+    # We don't have a way to do this with Anaconda/kickstart right now.
+    # This bootstraps us to be able to do all of the mounts.
+    coreos_gf set-label /dev/sda2 boot
+fi
 coreos_gf_run_mount "${src}"
 
 # Both of these are written by Anaconda

src/image-base.ks

@@ -18,13 +18,13 @@ firewall --disabled
 network --bootproto=dhcp --onboot=on
 
 zerombr
-clearpart --initlabel --all
+clearpart --initlabel --all --disklabel=gpt
 
 # https://github.com/coreos/fedora-coreos-tracker/issues/18
 # See also coreos-growpart.service defined in fedora-coreos-base.yaml
 # You can change this partition layout, but note that the `boot` and `root`
 # filesystem labels are currently mandatory (they're interpreted by coreos-assembler).
-part /boot --size=300 --fstype="xfs" --label=boot
+reqpart --add-boot
 # Note no reflinks for /boot since the bootloader may not understand them
 part / --size=3000 --fstype="xfs" --label=root --grow --mkfsoptions="-m reflink=1"
 

src/libguestfish.sh

@@ -9,6 +9,9 @@ export LIBGUESTFS_BACKEND=direct
 # http://libguestfs.org/guestfish.1.html#using-remote-control-robustly-from-shell-scripts
 GUESTFISH_PID=
 coreos_gf_launch() {
+    if [ -n "$GUESTFISH_PID" ]; then
+        return
+    fi
     local src=$1
     shift
     local guestfish
@@ -32,11 +35,20 @@ coreos_gf() {
     guestfish --remote -- "$@"
 }
 
+GUESTFISH_RUNNING=
+coreos_gf_run() {
+    if [ -n "$GUESTFISH_RUNNING" ]; then
+        return
+    fi
+    coreos_gf_launch "$@"
+    coreos_gf run
+    GUESTFISH_RUNNING=1
+}
+
 # Run libguestfs and mount the root and boot partitions.
 # Export `stateroot` and `deploydir` variables.
 coreos_gf_run_mount() {
-    coreos_gf_launch "$@"
-    coreos_gf run
+    coreos_gf_run "$@"
     local root
     root=$(coreos_gf findfs-label root)
     coreos_gf mount "${root}" /

src/virt-install

@@ -228,7 +228,10 @@ try:
     run_sync_verbose(vinstall_args)
     # And strip out all of the Anaconda stuff in /var; this uses libguestfs
     # to ensure we fully control the code.
-    run_sync_verbose(['/usr/lib/coreos-assembler/gf-anaconda-cleanup', args.dest])
+    cleanup_argv = ['/usr/lib/coreos-assembler/gf-anaconda-cleanup', args.dest]
+    if args.image_config is None:
+        cleanup_argv.append('--skip-partition-fixups')
+    run_sync_verbose(cleanup_argv)
 finally:
     subprocess.call(['virsh', '--connect=qemu:///session', 'undefine', domain])
     if tail_proc is not None: