add bcache-tools to trusty archive

[Scott Moser]

Bcache-tools is not available in the Ubuntu 14.04 archive, although the kernel supports bcache (and hardware enablement stack kernels support it even better).

We'd like to have bcache-tools available in the 14.04 archive for 2 reasons:
a.) to let users use bcache in 14.04 in a fully supported manner
b.) to enable maas and curtin to install systems with bcache

Related bugs:
 * bug 1449099: [SRU] bcache-tools to trusty and precise

[Scott Moser (smoser)]

Ubuntu Wily has bcache-tools 1.0.8 release. There are no major changes
to bcache itself [1] save fixes for working in systemd pre-boot
environments, which for Trusty won't matter. There are a number of
package fixes related to 1.0.8 introduction of a bcache_register
program introduced for systemd preboot support. However I don't see
any compelling reason to use 1.0.8 in Trusty over what's already in
Vivid and tested (1.0.7).

This results in a no-change backport of the bcache-tools package in
Vivid into Trusty.

The MAAS and Ubuntu Server team have been testing the package from Vivid
for some time and have not found any major issues in the core function
of the package. The most common item brought up is that the interface
(sysfs) for releasing devices from bcache is somewhat awkward. I've
started on a script[2] aimed to help and will push that upstream as it
becomes tested and used.

The package that has been being tested is at https://launchpad.net/~maas-maintainers/+archive/ubuntu/experimental/+packages with a debdiff at https://launchpadlibrarian.net/214149908/bcache-tools_1.0.8-2_1.0.7-1%7E14.04.diff.gz

[Adam Conrad (adconrad)]

Hello Scott, or anyone else affected,

Accepted bcache-tools into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/bcache-tools/1.0.7-1~14.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Andres Rodriguez (andreserl)]

I've tested this and works as expected!

[Launchpad Janitor (janitor)]

This bug was fixed in the package bcache-tools - 1.0.7-1~14.04.1

---------------
bcache-tools (1.0.7-1~14.04.1) trusty; urgency=medium

  * Backport from Vivid to Trusty (LP: #1491111)

 -- LaMont Jones <email address hidden> Tue, 11 Aug 2015 03:38:11 -0600

[Adam Conrad (adconrad)]

The verification of the Stable Release Update for bcache-tools has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.