To troubleshoot enabling swap space in Linux

In linux sometimes we face the issue of enabling swap space

The most easy way to troubleshoot is to rewrite the contents of etc/hosts in single user mode

For example: The contents of etc/hosts file is somewhat like this.


vim /etc/hosts

#please do not remove the following thing or required line
#that required network functionality will fail

127.0.0.1      localhost.localdomain   localhost

:wq

The simple way to trobleshoot is just rewrite the whole contents including the commented line as it is and the problem of enabling swap space would be solved.

Note: *There should not be any mistake while rewriting otherwise it would not work. If you forgot the contents see the etc/hosts file of other linux system. The default contents of file remains same in all linux with similar versions.

For Example: If you are performing in Redhat linux system then see /etc/hosts file of other system of redhat linux.