Looks like for non-disk devices, udev doesn't build a /dev/disk/by-path/
symlink, so we can't reliably use that. If we're in that case, just use
device.path .
---
storage/devices.py | 9 ++++++---
storage/devicetree.py | 8 ++++----
storage/errors.py | 3 +++
3 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/storage/devices.py b/storage/devices.py
index 03a8cdf..0b561e8 100644
--- a/storage/devices.py
+++ b/storage/devices.py
@@ -150,12 +150,15 @@ def deviceNameToDiskByPath(deviceName=None):
if not deviceName:
return ""
+ ret = None
for dev in udev_get_block_devices():
if udev_device_get_name(dev) == deviceName:
- return udev_device_get_by_path(dev)
-
- return None
+ ret = udev_device_get_by_path(dev)
+ break
+ if ret:
+ return ret
+ raise DeviceNotFoundError(deviceName)
class Device(object):
""" A generic device.
diff --git a/storage/devicetree.py b/storage/devicetree.py
index c171968..93aa005 100644
--- a/storage/devicetree.py
+++ b/storage/devicetree.py
@@ -1357,11 +1357,11 @@ class DeviceTree(object):
initcb = lambda: True
else:
description = device.description or device.model
- bypath = deviceNameToDiskByPath(device.name)
- if bypath:
- bypath = os.path.basename(bypath)
+ try:
+ bypath = os.path.basename(deviceNameToDiskByPath(device.name))
details = "\n\nDevice details:\n%s" % (bypath,)
- else:
+ except DeviceNotFoundError:
+ # some devices don't have a /dev/disk/by-path/ #!@#@!@#
bypath = device.name
details = ""
diff --git a/storage/errors.py b/storage/errors.py
index c4d4313..ea7e79c 100644
--- a/storage/errors.py
+++ b/storage/errors.py
@@ -129,6 +129,9 @@ class MPathError(StorageError):
class DeviceTreeError(StorageError):
pass
+class DeviceNotFoundError(StorageError):
+ pass
+
# DeviceAction
class DeviceActionError(StorageError):
pass
--
1.7.0.1
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