Today I attempted to upgrade from Kubuntu 14.10 to Kubuntu 15.04 on a ThinkPad X250 notebook following this guide: https://help.ubuntu.com/community/VividUpgrades/Kubuntu
I came to the dialog box asking to confirm "Package Changes". I selected "Start Upgrade". The upgraded started but now it is stuck. I can see the window "Distribution Upgrade" but it is greyed out. It's like that for at least 6 hours now. I think the last thing I saw before the window was greyed out was something like "configuring... systemd"
Kubuntu is still responding. I have a notification that uppdates are available for my system.
lsb_release -a shows:
No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.04 Release: 15.04 Codename: vivid
/etc/apt/sources.list all repositories point to
Something similar seems to have happened here. But this guy restarted his system and had to perform a fresh install.
This could be a similar issue, but there the distribution upgrade window was not grayed out. Here the upgrade was stuck but opposed to there I cannot see the terminal. This is also different as it hangs somewhere else. However, following but I followed the idea to check with
ps which processes might be running:
$ ps -ef | grep upgrade root 2877 1659 3 14:23 ? 00:12:27 /usr/bin/python3 /tmp/ubuntu-release-upgrader-uirakud8/vivid --mode=desktop --frontend=DistUpgradeViewKDE
If I try to close the Distribution Upgrade window a Warning appears:
Application "ubuntu-release-upgrader" is not responding You tried to close window "Distribution Upgrade" from application "ubuntu-release-upgrader" (Process ID: 2586) but the application is not responding. Do you want to terminate this application? Warning: Terminating the application will close all of its child windows. Any unsaved data will be lost.
What should I do to finish the upgrade? Is it safe to restart my computer and try again?