I pushed this one. Unfortunately the rest fail the test suite:
$ make -C tests/mountable
make: Entering directory '/home/rjones/d/libguestfs/tests/mountable'
make: Nothing to be done for 'all'.
make: Leaving directory '/home/rjones/d/libguestfs/tests/mountable'
rjones@choo:~/d/libguestfs$ make -C tests/mountable check
make: Entering directory '/home/rjones/d/libguestfs/tests/mountable'
make test-internal-parse-mountable
make[1]: Entering directory '/home/rjones/d/libguestfs/tests/mountable'
make[1]: 'test-internal-parse-mountable' is up to date.
make[1]: Leaving directory '/home/rjones/d/libguestfs/tests/mountable'
make check-TESTS
make[1]: Entering directory '/home/rjones/d/libguestfs/tests/mountable'
2 seconds: ./test-internal-parse-mountable
PASS: test-internal-parse-mountable
/home/rjones/d/libguestfs/run --test ./test-mountable-inspect.sh
libguestfs: error: mount: mount_stub: btrfsvol:btrfsvol:/dev/sda2/root/root: expecting a btrfs volume
/home/rjones/d/libguestfs/tests/mountable/test-mountable-inspect.sh: error #1: unexpected output from inspect-get-mountpoints
/home/rjones/d/libguestfs/run: command failed with exit code 1
FAIL: test-mountable-inspect.sh
===================
1 of 2 tests failed
===================
Makefile:1643: recipe for target 'check-TESTS' failed
make[1]: *** [check-TESTS] Error 1
make[1]: Leaving directory '/home/rjones/d/libguestfs/tests/mountable'
Makefile:1766: recipe for target 'check-am' failed
make: *** [check-am] Error 2
make: Leaving directory '/home/rjones/d/libguestfs/tests/mountable'
Rich.
--
Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
Read my programming and virtualization blog:
http://rwmj.wordpress.com
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http://people.redhat.com/~rjones/virt-top