def test_find_freebsd_part_label(self, mock_subp):
glabel_out = '''
gptid/fa52d426-c337-11e6-8911-00155d4c5e47 N/A da0p1
label/rootfs N/A da0p2
label/swap N/A da0p3
'''
mock_subp.return_value = (glabel_out, "")
res = find_freebsd_part("/dev/label/rootfs")
self.assertEqual("da0p2", res)
def test_find_freebsd_part_gpt(self, mock_subp):
glabel_out = '''
gpt/bootfs N/A vtbd0p1
gptid/3f4cbe26-75da-11e8-a8f2-002590ec6166 N/A vtbd0p1
gpt/swapfs N/A vtbd0p2
gpt/rootfs N/A vtbd0p3
iso9660/cidata N/A vtbd2
'''
mock_subp.return_value = (glabel_out, "")
res = find_freebsd_part("/dev/gpt/rootfs")
self.assertEqual("vtbd0p3", res)
def device_part_info(devpath, is_lvm):
# convert an entry in /dev/ to parent disk and partition number
# input of /dev/vdb or /dev/disk/by-label/foo
# rpath is hopefully a real-ish path in /dev (vda, sdb..)
rpath = os.path.realpath(devpath)
# first check if this is an LVM and get its PVs
lvm_rpath = get_pvs_for_lv(devpath)
if is_lvm and lvm_rpath:
rpath = lvm_rpath
bname = os.path.basename(rpath)
syspath = "/sys/class/block/%s" % bname
# FreeBSD doesn't know of sysfs so just get everything we need from
# the device, like /dev/vtbd0p2.
if util.is_FreeBSD():
freebsd_part = "/dev/" + util.find_freebsd_part(devpath)
m = re.search('^(/dev/.+)p([0-9])$', freebsd_part)
return (m.group(1), m.group(2))
if not os.path.exists(syspath):
raise ValueError("%s had no syspath (%s)" % (devpath, syspath))
ptpath = os.path.join(syspath, "partition")
if not os.path.exists(ptpath):
raise TypeError("%s not a partition" % devpath)
ptnum = util.load_file(ptpath).rstrip()
# for a partition, real syspath is something like:
# /sys/devices/pci0000:00/0000:00:04.0/virtio1/block/vda/vda1
rsyspath = os.path.realpath(syspath)
disksyspath = os.path.dirname(rsyspath)
diskmajmin = util.load_file(os.path.join(disksyspath, "dev")).rstrip()
diskdevpath = os.path.realpath("/dev/block/%s" % diskmajmin)
# diskdevpath has something like 253:0
# and udev has put links in /dev/block/253:0 to the device name in /dev/
return diskdevpath, ptnum
