** Description changed:
[Impact]
The release-upgrader tarball includes a file, removal_blacklist.cfg, which
lists packages which should never be removed. During the development of Ubuntu
18.04 this list was not updated and some packages which could be removed still
exist in that file which could prevent the upgrader from calculating the
upgrade. This would cause a bad experience for users as they will be stuck on
the previous release of Ubuntu.
[Test Case]
- Testing the release upgrade process from 16.04 to 18.04 and 17.10 to 18.04
should be sufficient to ensure that the release upgrade process works.
+ To test the unity blacklist issue
+ 1) Using an up to date Ubuntu 16.04 install restore the apt-clone file in bug
1768561
+ 2) Ensure /etc/update-manager/release-upgrades has Prompt=lts
+ 3) Run 'do-release-upgrade -d'
+ 4) Observe a failure to calculate the upgrade i.e. "ERROR Dist-upgrade
failed: 'The package 'unity' is marked for removal but it is in the removal
blacklist.'"
+
+ Using the release upgrader tarball from -proposed the release upgrade
+ should be successfully calculated.
+
+ Additionally, testing the release upgrade process of a "regular" system
+ from 16.04 to 18.04 and 17.10 to 18.04 is a good idea to ensure that the
+ release upgrade process works.
[Regression Potential]
Syntax errors in removal_blacklist.cfg may cause the release upgrader crash
so keep an eye out for those although it is just line removals.
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => In Progress
** Changed in: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided => High
** Changed in: ubuntu-release-upgrader (Ubuntu)
Assignee: (unassigned) => Brian Murray (brian-murray)
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https://bugs.launchpad.net/bugs/1768620
Title:
removal_blacklist.cfg updates
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