Update gets failed. Then I shut down my laptop and now when I started it again it isn't started with gui and then I read the same query at sight which tells to do ctrl+alt+f1 to use command line and to do sudo apt-get update after logging in and then to do sudo apt-get dist-upgrade.
But when I tried to do sudo apt-get dist-upgrade it is facing with some interrupt "dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem". I tried many times but same problem is there each time.
What should I do to fix it?