DescriptionBruno Goncalves
2016-03-24 08:39:05 UTC
Description of problem:
The command line in v0.6.x has changed slightly. If you want to specify the block for the metadata snap you should now use --metadata-snap=<sb>. -m should be used on it's own (the tools will look up the metadata snap location themselves).
Although, according to thin_dump man "-m" and "--metadata-snap" are the same. Could the man page be updated in this BZ?
-m, --metadata-snap [block#]
Dump metadata snapshot created by device-mapper thin provisioning target. If block is not provided, access the default metadata snapshot created by the thin provisioning device-map-
per target, else try the one at block#. See the thin provisioning target documentation on how to create or relea
Version-Release number of selected component (if applicable):
device-mapper-persistent-data-0.6.2-0.1.rc5.el6
How reproducible:
100%
Steps to Reproduce:
1.man thin_dump
device-mapper-persistent-data-0.6.2-0.2.rc7.el6:
-m, --metadata-snap[=block#]
Dump metadata snapshot created by device-mapper thin provisioning target. If block is not provided, access the default metadata snapshot created by the thin provisioning device-mapper target, else try the one at block#. See the thin provisioning target documentation on how to create or release a metadata snapshot and retrieve the block number from the kernel.
# thin_dump /dev/sda -m=1
couldn't parse <metadata_snap>
--snip--
# thin_dump /dev/sda --metadata-snap=1
bad checksum in superblock
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:1913
Description of problem: The command line in v0.6.x has changed slightly. If you want to specify the block for the metadata snap you should now use --metadata-snap=<sb>. -m should be used on it's own (the tools will look up the metadata snap location themselves). Although, according to thin_dump man "-m" and "--metadata-snap" are the same. Could the man page be updated in this BZ? -m, --metadata-snap [block#] Dump metadata snapshot created by device-mapper thin provisioning target. If block is not provided, access the default metadata snapshot created by the thin provisioning device-map- per target, else try the one at block#. See the thin provisioning target documentation on how to create or relea Version-Release number of selected component (if applicable): device-mapper-persistent-data-0.6.2-0.1.rc5.el6 How reproducible: 100% Steps to Reproduce: 1.man thin_dump