[Pkg-utopia-maintainers] Bug#874614: Bug#874614: Bug#874614: Please demote some packages from dependency to recommendation

[Michael Biebl]

Am 08.09.2017 um 14:26 schrieb Bracksiek & Hemmelskamp:
> Ok, in that case the modules in udisks2 has to be optional - and not
> dependencies. What do you think?

There is already
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873706

Further discussion should follow up there.

Manually removing the mdraid module leads to
> Sep 08 14:38:13 pluto udisksd[23063]: udisks daemon version 2.7.3 starting
> Sep 08 14:38:13 pluto udisksd[23063]: failed to load module mdraid: libbd_mdraid.so.2: cannot open shared object file: No such file or directory
> Sep 08 14:38:13 pluto udisksd[23063]: Failed to load a libblockdev plugin
> Sep 08 14:38:13 pluto udisksd[23063]: Acquired the name org.freedesktop.UDisks2 on the system message bus
> Sep 08 14:38:13 pluto systemd[1]: Started Disk Manager.

The udisks2 daemon is still running though. Same for the
libbd_crypto.so.2 plugin:

> Sep 08 14:40:46 pluto systemd[1]: Starting Disk Manager...
> Sep 08 14:40:46 pluto udisksd[23330]: udisks daemon version 2.7.3 starting
> Sep 08 14:40:46 pluto udisksd[23330]: failed to load module crypto: libbd_crypto.so.2: cannot open shared object file: No such file or directory
> Sep 08 14:40:46 pluto udisksd[23330]: failed to load module mdraid: libbd_mdraid.so.2: cannot open shared object file: No such file or directory
> Sep 08 14:40:46 pluto udisksd[23330]: Failed to load a libblockdev plugin
> Sep 08 14:40:46 pluto udisksd[23330]: Failed to load a libblockdev plugin
> Sep 08 14:40:46 pluto systemd[1]: Started Disk Manager.
> Sep 08 14:40:46 pluto udisksd[23330]: Acquired the name org.freedesktop.UDisks2 on the system message bus

Maybe that's already good enough to make those plugins optional and
demote them to Recommends. The failure messages are certainly ugly
though and I haven't checked how that failure is propagated to the UI,
say cockpit or gnome-disks and if they handle those properly.

As for LVM2 and btrfs support: Those are already optional modules in
udisks2 (i.e. Suggests).
But I'm actually not sure if LVM support works in the Debian udisks2
package.
I see that the following features need to be switched on explicitly:
  --enable-lvm2           enable LVM2 support
  --enable-lvmcache       enable LVMCache support
  --enable-iscsi          enable iSCSI support
  --enable-btrfs          enable BTRFS support
  --enable-zram           enable ZRAM support
  --enable-lsm            enable LibStorageMgmt support
  --enable-bcache         enable Bcache support

Andreas, have you tested if e.g. lvm2 or btrfs support actually works in
the Debian udisks2 package?

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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