Looking at your VarLogDistupgradeAptclonesystemstate.tar.gz file your /etc/apt/sources.list file is misconfigured:
1 deb file:///home/vaibhav/repo/ / 2 deb http://ftp.ca.debian.org/debian unstable main You don't have any mirrors of the Ubuntu archive in it so it is not surprising that ubuntu-release-upgrader failed to do anything. You'll need to sort out your sources.list file before you can use ubuntu- release-upgrader. ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1777214 Title: It was impossible to install a required package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1777214/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
