If you've read my earlier post, I was using Ubuntu, at that time, and I thought that was how you identify which distro is running in your system but using lsb_release -a is not always going to work as some distributions may not have it installed.

Try the following command to identify the distribution you are running in your system:

cat /etc/os-release


And you'll get the following output:

NAME="XXXX"
ID="XXXX"
DISTRIB_ID="XXXX"
PRETTY_NAME="XXXX"


Hope this helps you out!