Bug#760791: lvm2: add dependency to thin-provisioning-tools

[Bernd Kubu]

Package: lvm2
Version: 2.02.109-1
Severity: important

Dear Maintainer,

Problem:
/usr/sbin/cache_check is needed to activate a lvm-cache-volume after a 
reboot or power-fail.

I created a lvm-cache-volume with commands like
# lvconvert --type cache-pool --poolmetadata VG/CacheMetaLV VG/CacheDataLV
# lvconvert --type cache --cachepool VG/CachePoolLV VG/OriginLV
# mkfs.ext4 ...
# mount ....
... put some load on the device with ...
# dbench -st 60 60
... and removed the power-cable/made a reboot.
After a startup, the lvm-cache-volume was not active. I tried to 
activate it with
# lvchange -ay ...
... and it reported the tool /usr/sbin/cache_check is missing. After the 
installation of thin-provisioning-tools the
# lvchange -ay
... was successful. The lvm-cache-volume is activated after a further 
startup as well.

Regards

     Bernd

-- System Information:
Debian Release: 7.6
   APT prefers stable-updates
   APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.14-0.bpo.2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lvm2 depends on:
ii  dmsetup                   2:1.02.88-1
ii  init-system-helpers       1.18~bpo70+1
ii  initscripts               2.88dsf-41+deb7u1
ii  libc6                     2.13-38+deb7u4
ii  libdevmapper-event1.02.1  2:1.02.74-8
ii  libdevmapper1.02.1        2:1.02.88-1
ii  libreadline5              5.2+dfsg-2~deb7u1
ii  libudev0                  175-7.2
ii  lsb-base                  4.1+Debian8+deb7u1

lvm2 recommends no packages.

Versions of packages lvm2 suggests:
ii  thin-provisioning-tools  0.3.2-1

-- no debconf information