Sfdwhf

Been searching for a while and couldn't find the relevant questions/solutions.

My system is running 14.04, every time when I logon the system, a message pops up saying 14.10 available, run do-release-upgrade.

Before hit with do-release-upgrade, I ran apt-get update & apt-get upgrade to make sure nothing is pending to update. Here are the errors I got

root@ubuntu:~# do-release-upgrade

Checking for a new ubuntu release

Get:1 Upgrade tool signature [198 B]

Get:2 Upgrade tool [1147 kB]

Fetched 1148 kB in 6s (109 kB/s)

authenticate 'utopic.tar.gz' against 'utopic.tar.gz.gpg'

extracting 'utopic.tar.gz'

Traceback (most recent call last):

  File "/tmp/update-manager-J0y7tt/utopic", line 3, in <module>

    from DistUpgrade.DistUpgradeMain import main

  File "/tmp/update-manager-J0y7tt/DistUpgrade/DistUpgradeMain.py", line 22, in <module>

    import apt

ImportError: No module named 'apt'

root@ubuntu:~#

Although apt and python are both installed properly.

root@ubuntu:~# apt-cache policy apt

apt:

  Installed: 1.0.1ubuntu2.18

  Candidate: 1.0.1ubuntu2.18

  Version table:

 *** 1.0.1ubuntu2.18 0

        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages

        100 /var/lib/dpkg/status

     1.0.1ubuntu2.17 0

        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages

     1.0.1ubuntu2 0

        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

root@ubuntu:~# apt-cache policy python

python:

  Installed: 2.7.5-5ubuntu3

  Candidate: 2.7.5-5ubuntu3

  Version table:

 *** 2.7.5-5ubuntu3 0

        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

        100 /var/lib/dpkg/status

root@ubuntu:~#

python-apt is also installed.

root@ubuntu:~# apt-cache policy python-apt

python-apt:

  Installed: 0.9.3.5ubuntu2

  Candidate: 0.9.3.5ubuntu2

  Version table:

 *** 0.9.3.5ubuntu2 0

        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages

        100 /var/lib/dpkg/status

     0.9.3.5 0

        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

root@ubuntu:~#

Did anyone know how to get around this so I can go to 14.10?

Thanks,

The problem here appeared to be with python-apt package, although the right version is showing installed but somehow python script was complaining apt module cannot be recognized, after re-installed the package python-apt, do-release-upgrade worked.

Ubuntu 14.10 has been EOL since July 23, 2015 so it is not possible to update to this version. It should be possible to update to 16.04 which is also a LTS version.

Check settings in Update Manager is set to only inform on new LTS versions, and there should be a button saying New release 16.04 is available.

The problem is that python-apt somehow was playing up. The DistUpgradeMain.py simply failed at the first line
import apt

I just removed python-apt and re-installed it again, do-release-upgrade now worked.