While upgrading a distribution, the update manager freezes. How to restart the process of a safe upgrade?

  • What do you mean by "freezes"? How do you know it is actually frozen?
    – Seth
    Oct 19, 2013 at 2:46
  • I can't make out whether you are trying to help, given your language. However, here is the scenario. I can see a process named saucy. I can see that the upgrade window is dimmed and is not reacting to the mouse. My nautilus has crashed, and I cannot get it restarted again.
    – Indian
    Oct 19, 2013 at 5:02
  • I was trying to help. Sorry for any confusion, however "freezes" isn't the most descriptive word ;-)
    – Seth
    Oct 19, 2013 at 16:39

2 Answers 2


I have taken the following steps to solve the condition:

sudo pkill saucy

This will kill the process named saucy which has frozen. Then there would be a need to reconfigure the downloaded packages. To do this:

sudo dpkg --configure -a 

There may be some packages which might have downloaded but not installed. To install them, do the following:

sudo apt-get upgrade 

Finally, it might be possible that your system has actually not detected the upgrade (Well, strange things happen with computers!). Therefore to alleviate this problem run:

sudo apt-get -y dist-upgrade
  • During an upgrade to 15.10 I found that I also had to sudo pkill dpkg a couple of times.
    – klugerama
    Apr 12, 2016 at 16:34

You can find the the process ID (PID) for the software updater by running: $ ps -aux | grep "Software Updater" from the command line. Then shut it down by running: $ kill pid and restart it.

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