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When Kubuntu needs to be upgraded between versions (e.g. 9.10 to 10.04), there's a notifier icon that shows up in the system tray,

upgrade icon


But if I click on it to start the upgrade and it fails for some reason (in my case, not enough space on the /boot partition), the icon disappears. How can I either get it back, or run the upgrade manually, without having to log out and log back in?

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up vote 5 down vote accepted

Open up KPackageKit in Kickoff (under the Computer tab), and it should offer to install updates.

If KPK can't do it:

sudo do-release-upgrade
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Hm, I thought I did that and it only gave me 4 updates, the regular security/bugfix complement... but I'll go back and try it again to check. – David Z Aug 16 '10 at 0:41
+1 for do-release-upgrade – David Z Aug 16 '10 at 4:08

The program that places the icon in the tray is a python script, update-notifier-kde, and it can be run from the terminal as

python /usr/bin/update-notifier-kde

(sudo not required, it will prompt for the password graphically)

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