update-manager should support HWE EOL transition

[Michael Vogt]

In ubuntu 12.04 parts of the older HardwareEnablementStack is going out of support soon. update-manager should support the transition to the new HardwareEnablementStack (HWE).

Impact:
- all user with of ubuntu 12.04.{2,3,4} are affected and need the update to have a good transition

Testing:
- install 12.04.2 (or .3, .4)
- run update-manager
- verify that nothing special happens (except for updates being available :)
- install update-manager from precise-proposed
- start update-manager and verify that a "new hardware support" label becomes available with a install button
- log into a console and verify that you get a message after login that you need to upgrade your hardware support
- run ubuntu-support-status and verify that it displays information about the new HWE support
- click the button, verify that information is available and click install
- after the install is finished, reboot and verify that update-manager does not display anything about the hardware again
- verify that ubuntu-support-status and /etc/motd do not contain references to the HWE anymore

Potential risk:
- if the new update-manager is buggy this may prevent users from getting updates, so we need to test this carefully

For details, see https://blueprints.launchpad.net/ubuntu/+spec/core-1403-hwe-stack-eol-notifications

[Chris Halse Rogers (raof)]

Hello Michael, or anyone else affected,

Accepted update-notifier into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/update-notifier/0.119ubuntu8.7 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!

[Colin Watson (cjwatson)]

Hello Michael, or anyone else affected,

Accepted update-manager into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/update-manager/1:0.156.14.15 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!

[Jean-Baptiste Lallement (jibel)]

I verified update-manager 1:0.156.14.15 and update-notifier 0.119ubuntu8.7 in precise-proposed.

Tests done:
- Verification of hwe-support-status and ubuntu-support-status
    - Before and after EOL
    - with locales en_US.utf8 and fr_FR.utf8
    - On Precise Desktop and Server (no graphics stack installed) i386 and amd64
    - Without an LTS stack
    - With HWE stacks Q, R, S and T
    - Upgrade from HWE stacks Q, R, S to T and reboot
- Verification of update-manager (GUI) on Precise Desktop
    - Without an LTS stack (12.04.0 and 12.04.1)
    - With HWE stacks Q, R, S and T
    - Upgrade from HWE stacks Q, R, S to T and reboot

Results of automated tests: http://dmz-jenkins.ubuntu-ci:8080/view/HWE EOL

Tests have been successful. Marking as verification-done

[Colin Watson (cjwatson)]

The verification of the Stable Release Update for update-notifier 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.

[Launchpad Janitor (janitor)]

This bug was fixed in the package update-manager - 1:0.156.14.15

---------------
update-manager (1:0.156.14.15) precise-proposed; urgency=low

  * support HardwareEnablement End-of-Life transition
    (LP: #1333728)
 -- Michael Vogt <email address hidden> Tue, 24 Jun 2014 16:32:25 +0200

[Launchpad Janitor (janitor)]

This bug was fixed in the package update-notifier - 0.119ubuntu8.7

---------------
update-notifier (0.119ubuntu8.7) precise-proposed; urgency=low

  * add support for the HWE End-of-life notification via
    motd (LP: #1333728)
  * debian/control:
    - add dependency to update-manager-core to ensure hwe-support-status
      is available
 -- Michael Vogt <email address hidden> Tue, 10 Jun 2014 12:32:58 +0000

[Yu Ning (yuningdodo)]

There is an issue when I test with update-manager 1:0.156.14.15 (sorry I didn't find the ubuntu bug for update-manager, so I add my comments here).

1. install ubuntu 12.04 on an amd64 machine
2. install the hwe lts-saucy stack
3. enable i386 support
4. install libgl1-mesa-glx-lts-saucy:i386
5. use update-manager to upgrade to the lts-trusty stack

Step 5 will fail with an error:

The following packages have unmet dependencies:

```
libgl1-mesa-glx-lts-trusty: Depends: libglapi-mesa-lts-trusty (= 10.1.3-0ubuntu0.1~precise1) but 10.1.3-0ubuntu0.1~precise1 is to be installed
                            Depends: libx11-6 (>= 2:1.4.99.1) but 2:1.4.99.1-0ubuntu2.2 is to be installed
                            Depends: libxdamage1 (>= 1:1.1) but 1:1.1.3-2build1 is to be installed
xserver-xorg-lts-trusty: Depends: xserver-xorg-core-lts-trusty (>= 2:1.11) but 2:1.15.1-0ubuntu2~precise1 is to be installed
```

The output of hwe-support-status --show-replacements is:
linux-generic-lts-trusty linux-image-generic-lts-trusty libgl1-mesa-glx-lts-trusty xserver-xorg-lts-trusty

However since there is libgl1-mesa-glx-lts-saucy:i386 installed we should also put libgl1-mesa-glx-lts-trusty:i386 into the replacements list.

In fact for each package in the replacements list we should check if it's also installed for other multiarch and add the lts-trusty replacement to the list too.

[Yu Ning (yuningdodo)]

I filed a patch for the issue, the idea is to treat 'foo' and 'foo:arch' as different packages then generate the package list with the foreign arch information checked.

[Michael Vogt (mvo)]

Thanks a lot Yu Ning ! I filed a new bug #1349400 for SRU tracking and merged your patch.

[Yu Ning (yuningdodo)]

Cool, thank you Michael.