I tried to upgrade ubuntu with do-release-upgrade command. It started downloading for hours and some errors occured at the end. I tried again another day ,it started downloading more files but no success .

Now it's not updating anymore and prompts this message : No new release found but my ubuntu version is 13.04 : Release: 13.04

I installed KDE and Gnome shell on ubuntu and now I'm using KDE

  • Looks like it upgraded, but not completely. I think you installation now is broken. What version of KDE is shown in Dolphin's "About"? – warvariuc Dec 8 '13 at 19:17
  • KDE Platform Version 4.10.5 – user2085899 Dec 12 '13 at 1:10
  • Open your sources.list file and replace raring with saucy. To do this automatically, see this answer – warvariuc Dec 12 '13 at 7:28

you can try upgrading using

sudo do-release-upgrade -d

-d is for checking devel-release upgrade


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