** Description changed:
As far as I can see Ubuntu only supports 2 release upgrade paths[1]:
- 1. ${release} upgrade to ${next-release} (e.g. for 14.04 -> 15.10, you'll
have to 14.04 -> 14.10 -> 15.04 -> 15.10, 3 upgrades in a row)
- 2. ${lts-release} upgrade to ${next-lts-release} (e.g. for 12.04 ->
14.04, you can do a direct upgrade)
+ 1. ${release} upgrade to ${next-release} (e.g. for 14.04 -> 15.10, you'll
have to 14.04 -> 14.10 -> 15.04 -> 15.10, 3 upgrades in a row)
+ 2. ${lts-release} upgrade to ${next-lts-release} (e.g. for 12.04 ->
14.04, you can do a direct upgrade)
However currently on a ubuntu 14.04 if user chooses to "show any new
Ubuntu versions" Update Manager(and do-release-upgrade) will suggest to
directly upgrade to Ubuntu 15.10, this upgrade path has been verified[2]
to cause entire system hang during the upgrade process and even if you
- do a hard reboot you'll end in a console-only 15.10 environment.
+ do a hard reboot you'll end in a console-only 15.10 environment(UPDATE:
+ still fixable with a `# dpkg --configure -a` under console).
Update Manager/do-release-upgrade should instead follow the 14.04 ->
14.10 -> 15.04 -> 15.10 upgrade path, while using old-
releases.ubuntu.com[3] software source during the interim EOL'd ubuntu
release upgrade
## References ##
[1]upgrade - Can I skip over releases when upgrading? - Ask Ubuntu
-
http://askubuntu.com/questions/34430/can-i-skip-over-releases-when-upgrading
+
http://askubuntu.com/questions/34430/can-i-skip-over-releases-when-upgrading
[2]Ubuntu 14.04→15.10 upgrade path testing - YouTube
- https://www.youtube.com/watch?v=p6f78HLaHmQ
+ https://www.youtube.com/watch?v=p6f78HLaHmQ
[3]EOLUpgrades - Community Help Wiki
- https://help.ubuntu.com/community/EOLUpgrades
+ https://help.ubuntu.com/community/EOLUpgrades
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1569324
Title:
Update Manager shouldn't suggest 14.04 -> 15.10 unsupported upgrade
path
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1569324/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
