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Instead of relying on 'pvs' output - check directly system
configuation and use lvmdevice accrording to use_devicesfile setting.
Also drop use of --fs ignore for filesystem extension for better
backward compatibility with older lvm version.
Shuffle code a bit so the '--no-snapshot' path does not execute
a few unnecessary commands.
Work also with devices that may have ':' inside their generated
/dev/disk/by-id
Ensure there is no race with systems' auto activation while using
the snapshot for conversion.
Update system's vdoconf.yml after the use of snapshot for conversion.
Skip unnecesary prompt for 'convert' while using snapshot and query only
for final snaphot merge.
Prohibit conversion for a device with the PV header.
Enhance 'trap' protection for more signals.
Improve clean() recovery path.
Replace bash 'test' command with [].
Correct some output message to print $TOOL.
Support also options without '-' in the middle i.e. --nosnapshot.
For shellcheck predefine all variables extracted from vdoconf.yml.
When the import is used on a system, that uses devices file,
the final activation was impossible for the case the converted
volume was not present in devices file.
Currently add volume automatically in such case.
Also add some more debugging output from the script.
TODO: Consider enhnacing lvconvert with extending devices file.
VDO is using specific path for some device paths.
i.e. for /dev/sda it could be /dev/disk/by-id/scsi-xxxxx.
This used to be not a problem before lvm2 started to use snapshot,
but now it needs to replace matching device path.
So switch to the path naming used in vdoconf.yml file.
Output from vdo manager may actually indent output with spaces,
so trim leading and ending space.
Also add support for verbosity flag for vdo conversion tool.
This vdo parameter existed in the early stage of integration of vdo into lvm2,
but later it's been removed from vdoformat tool - so actually if
there would be any non-zero value it would cause error on lvcreate.
Option was not stored on disk in lvm2 metadata.
Remove this vdo parameter from lvm2 sources.
(Although this vdo parameter will be still accepted on cmdline through
--vdosettings option, but it will be ignored.)
Ensure the volume after conversion has the properly aligned size to the
volume group extent size. This would be visible when using virtual size,
that cannot be divided by extent size.
Before the user had to manually adjust the size after conversion to get
access to all data stored on VDO volume.
Add support for usage of 'dm-snapshot' for doing whole device conversion
in a snapshot which could be merged once the whole conversion has been
made.
This helps with cases where there would be any unexpected failure in the
middle of conversion process and user can continue using original
device until problem in conversion is fixed.
Import tool now uses 'truncate' tool to create a small backend file (20M) for loop device
to hold COW exception store.
Option --vdo-config has been added to allow specifing location of vdo
configuration file.
Option --no-snapshot allows to use import tool without creation of
snapshot, however recovery after finished VDO conversion and unfinished
lvm2 conversion is then very difficult.
Option --uuid-prefix allow to specify DM UUID prefix for snapshot
device.
Use read with -r.
Reduce shellcheck warnings about missing {} for possible array
dereference.
Make sure we are not loosing error code when assigning local vars
and explicitely ignore 'errors' from standalone lines when needed.
Add some missing quotes.
Use $() instead of ancient ``
Avoid writing some temporary data into /tmp - test need to store
files within its own 'testdir' - so it can be properly discarded.
Patch 1b070f366b should have
been already fixing this issue but since it the incorrect
patch rebasing the change to vdo_slabSize got lost.
So again now with explicit one-line patch.
When converting VDO volume, the parameter vdo_slabSize was
incorrectly copied as vdo_blockMapCacheSize, however this parameter
is then no longer used for any table line creation so the wrong
value was only stored in metadata.
Also use just single get_kb_size_with_unit_ and remove it's duplicate
functionality with get_mb_size_with_unit_.
Use $VERB for vdo remove call.
Do not call 'dmsetup info' for non-dm devices.
Better handling for VGNAME and LVNAME - so when convering LV as
backend device automatically recognize it and reuse LV name for VDOLV.
Add prompt for final confirmation before actual conversion is started
(once confirmed, lvm2 commands no longer prompts to avoid leaving
conversion in the middle of its process.)
