def find_live_backing_device(devicetree):
"""Find the backing device for the live image.
Note that this is a little bit of a hack since we're assuming
that /run/initramfs/live will exist
:param devicetree: a device tree
:return: a device or None
"""
for mnt in open("/proc/mounts").readlines():
if " /run/initramfs/live " not in mnt:
continue
# Return the device mounted at /run/initramfs/live.
device_path = mnt.split()[0]
device_name = device_path.split("/")[-1]
device = devicetree.get_device_by_name(device_name, hidden=True)
if device:
return device
# Or return the disk of this device.
info = udev.get_device(device_node=device_path)
disk_name = udev.device_get_partition_disk(info) if info else ""
disk = devicetree.get_device_by_name(disk_name, hidden=True)
if disk:
return disk
return None
def find_live_backing_device():
"""Find the backing device for the live image.
Note that this is a little bit of a hack since we're assuming
that /run/initramfs/live will exist
:return: a device name or None
"""
for mnt in open("/proc/mounts").readlines():
if " /run/initramfs/live " not in mnt:
continue
live_device_path = mnt.split()[0]
udev_device = udev.get_device(device_node=live_device_path)
if udev_device and udev.device_is_partition(udev_device):
live_device_name = udev.device_get_partition_disk(udev_device)
else:
live_device_name = live_device_path.split("/")[-1]
return live_device_name or None
return None
def find_live_backing_device():
"""Find the backing device for the live image.
Note that this is a little bit of a hack since we're assuming
that /run/initramfs/live will exist
:return: a device name or None
"""
for mnt in open("/proc/mounts").readlines():
if " /run/initramfs/live " not in mnt:
continue
live_device_path = mnt.split()[0]
udev_device = udev.get_device(device_node=live_device_path)
if udev_device and udev.device_is_partition(udev_device):
live_device_name = udev.device_get_partition_disk(udev_device)
else:
live_device_name = live_device_path.split("/")[-1]
return live_device_name or None
return None