How do I fix a broken Ubuntu install?

Ubuntu fix broken package (best solution)

1. sudo apt-get update –fix-missing. and.
2. sudo dpkg –configure -a. and.
3. sudo apt-get install -f. …
4. Unlock the dpkg – (message /var/lib/dpkg/lock)
5. sudo fuser -vki /var/lib/dpkg/lock.
6. sudo dpkg –configure -a.

How do I repair Ubuntu?

The graphical way

1. Insert your Ubuntu CD, reboot your computer and set it to boot from CD in the BIOS and boot into a live session. You can also use a LiveUSB if you have created one in the past.
2. Install and run Boot-Repair.
3. Click “Recommended Repair”.
4. Now reboot your system. The usual GRUB boot menu should appear.