Install visudo on CentOS 5.2
We need visudo to edit the “sudoers” file. We want to edit this file to enable users in the “wheel” group to conjure sudo (as described on the Slicehost site. I’ve never known visudo to be unavailable, but, for whatever reason, it was absent from a fresh install of CentOS on my host.
It could be that it’s in a directory that’s not in your PATH, but this was not my problem. Instead, I needed to install sudo. Doesn’t that just sound weird? Why wouldn’t sudo be installed? Anyways, the fix was simple:
yum -y install sudo