{nav icon=home, name=Main Page > icon=wrench, name=Troubleshooting > Fixing broken system upgrade} Fixing a failed/partial system upgrade --- == Problem == System upgrade was interrupted and system cannot boot anymore or GNOME does not start. == Solution == 1. Press {key Ctrl+Alt+F2} to open another virtual terminal, you will get this screen: {F53541, size=full, alt=tty1} 2. Login by entering your username (press {key ENTER} afterwards) and then enter your password (press {key ENTER} to login): {F53543, size=full, alt=tty2} 3. You are now logged in and you should see something like this: {F53545, size=full, alt=tty3} 4. Type in the following command and press {key ENTER}, and then enter your password and press {key ENTER}: {icon terminal}`sudo dpkg --configure -a`: {F53547, size=full, alt=tty4} 4. When the above command finishes, run the [[Recommendations/Upgrading packages | command to upgrade your system again]]: {icon terminal}`sudo apt full-upgrade`