segmentation fault (core dumped)

Step 1: Remove the lock files present at different locations.

sudo rm -rf /var/lib/apt/lists/lock /var/cache/apt/archives/lock /var/lib/dpkg/lock and restart your system h.cdccdc

Step 2: Remove repository cache.

sudo apt-get clean all

Step 3: Update and upgrade your repository cache.

sudo apt-get update && sudo apt-get upgrade

Step 4: Now upgrade your distribution, it will update your packages.

sudo apt-get dist-upgrade

Step 5: Find the broken packages and delete them forcefully.

sudo dpkg -l | grep ^..r | apt-get purge

Apart from the command line, the best way which will always work is:

Step 1: Run Ubuntu in startup mode by pressing the Esc key after the restart.  

Step 2: Select Advanced options for Ubuntu

Step 3: Run Ubuntu in the recovery mode and you will be listed with many options.

Step 4: First select “Repair broken packages”

Step 5: Then select “Resume normal boot”

 

So, we have two methods of resolving segmentation fault: CLI and the GUI. Sometimes, it may also happen that the “apt” command is not working because of segfault, so our CLI method will not work, in that case also don’t worry as the GUI method gonna work for us always.