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Replace previous Shell draft-quality implementation of uvol with a
rewrite in ucode[1].
While the new code is slightly larger, it performs much better (as
we no longer fork() for parsing strings like in Shell with grep, sed
and friends).
Before:
time uvol list -j
[ ... ]
real 0m 0.82s
user 0m 0.13s
sys 0m 0.10s
After:
time uvol list -j
[ ... ]
real 0m 0.47s
user 0m 0.05s
sys 0m 0.05s
[1]: https://github.com/jow-/ucode
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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* Winchester discs can take a long time to spin up which results in
blockd also taking a while to complete to start.
* Make sure uvol only gets started once blockd is ready.
* Clean up paths (use '/tmp/run/uvol' everywhere instead of relying on
the '/var' -> '/tmp' symlink)
* Create 'apk' folder when initializing .meta volume.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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* auto-created meta volume
Automatically create volume '.meta' sized 0.01% of the total space
managed by uvol, the minimum size being 4 MiB.
This volume should be used to keep metadata about stored volumes, such
as container runtime configuration (in /var/run/uvol/.meta/uxc) or
the database of installed container packages.
* configurable LVM volume group
Allow setting volume group to be used by uvol using UCI.
This is useful on devices which do not boot off the device which
should be used for uvol and hence cannot make use of autopart and
physical volume detection based on kernel cmdline.
Use option vg_name in uvol section of fstab UCI config package.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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As /var/state is used for UCI state, move persistent config for uxc
from /var/state/uxc to /var/run/uxc.
uxc itself has already been changed to look for it there.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Create UCI fstab mount sections for existing volumes on firstboot.
Introduce special handling for volumes with non-[:alnum:] prefix:
- do not create UCI sections for these 'hidden' volumes
- create UCI section for '.uxc' special volume with target
/var/state/uxc to be used for uxc config.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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* genrate UCI fstab configs for each volume before first 'up'
* remove UCI section on volume remove
* use autofs automounter for read-only volumes
* try umount on 'down'
* emulate hotplug events for UBI volume up/down
* more robust error paths
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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