def get_release_string():
"""Identify the installation of a Linux distribution.
Attempt to identify the installation of a Linux distribution by checking
a previously mounted filesystem for several files. The filesystem must
be mounted under the target physical root.
:returns: The machine's arch, distribution name, and distribution version
or None for any parts that cannot be determined
:rtype: (string, string, string)
"""
rel_name = None
rel_ver = None
sysroot = util.getSysroot()
try:
rel_arch = blivet_util.capture_output(["arch"], root=sysroot).strip()
except OSError:
rel_arch = None
filename = "%s/etc/redhat-release" % sysroot
if os.access(filename, os.R_OK):
(rel_name, rel_ver) = _release_from_redhat_release(filename)
else:
filename = "%s/etc/os-release" % sysroot
if os.access(filename, os.R_OK):
(rel_name, rel_ver) = _release_from_os_release(filename)
return rel_arch, rel_name, rel_ver
def get_release_string(chroot):
"""Identify the installation of a Linux distribution.
Attempt to identify the installation of a Linux distribution by checking
a previously mounted filesystem for several files. The filesystem must
be mounted under the target physical root.
:returns: The machine's arch, distribution name, and distribution version
or None for any parts that cannot be determined
:rtype: (string, string, string)
"""
rel_name = None
rel_ver = None
sysroot = chroot
try:
rel_arch = blivet_util.capture_output(["arch"], root=sysroot).strip()
except OSError:
rel_arch = None
try:
filename = "%s/etc/redhat-release" % sysroot
if os.access(filename, os.R_OK):
(rel_name, rel_ver) = _release_from_redhat_release(filename)
else:
filename = "%s/etc/os-release" % sysroot
if os.access(filename, os.R_OK):
(rel_name, rel_ver) = _release_from_os_release(filename)
except ValueError:
pass
return rel_arch, rel_name, rel_ver
def test_set_uuid(self):
"""Create the filesystem with a valid UUID."""
an_fs = self._fs_class(device=self.loop_devices[0],
uuid=self._valid_uuid)
self.assertIsNone(an_fs.create())
out = capture_output(["blkid", "-sUUID", "-ovalue", self.loop_devices[0]])
self.assertEqual(out.strip(), self._valid_uuid)
def test_reset_uuid(self):
"""Create the filesystem with random UUID and reset it later."""
an_fs = self._fs_class(device=self.loop_devices[0])
if an_fs._writeuuid.availability_errors:
self.skipTest("can not write UUID for filesystem %s" % an_fs.name)
self.assertIsNone(an_fs.create())
self.assertIsNone(an_fs.reset_uuid())
out = capture_output(["blkid", "-sUUID", "-ovalue", self.loop_devices[0]])
self.assertEqual(out.strip(), an_fs.uuid)