Hi,
There appears to be a slightly gnarly packaging bug that prevents
upgrades from version 0.79.0ubuntu1, as supplied by Ubuntu 14.04
("Trusty"), to version 0.80.1-1trusty, as supplied under
https://ceph.com/debian-firefly/.
Specifically, the older version of the 'ceph' packages conflicts with
the newer 'ceph-common' package, and similarly the older version of the
'ceph-common' package conflicts with the newr 'ceph' one.
Attempting to update 'ceph' results in dpkg objecting with:
> dpkg: error processing archive
> /var/cache/apt/archives/ceph-common_0.80.1-1trusty_amd64.deb (--unpack):
> trying to overwrite '/etc/ceph/rbdmap', which is also in package ceph
> 0.79-0ubuntu1
Similarly, attempting to update 'ceph-common' results in dpkg objecting
with:
> dpkg: error processing archive
> /var/cache/apt/archives/ceph_0.80.1-1trusty_amd64.deb (--unpack):
> trying to overwrite '/usr/share/man/man8/ceph-rest-api.8.gz', which is also
> in package ceph-common 0.79-0ubuntu1
These are just the first conflicts that occur; it's conceivable there
are more.
Though this is not something I'm deeply familiar with, a first glance
suggests that a careful addition of "Replaces:" and "Breaks:" dependency
relations to the newer packages are necessary to suppress this error.
See also:
https://www.debian.org/doc/debian-policy/ch-relationships.html#s-replaces
Kind regards,
David
--
David McBride <dw...@cam.ac.uk>
Unix Specialist, University Information Services
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