Use /usr/sbin instead of /usr/local/bin to accommodate RHEL

[YrrepNoj]

Closes #296

[YrrepNoj]

/test all

[RothAndrew]

According to this I'm concerned about putting stuff in /sbin. Is there a better directory we could pick? From reading that post, it sounds like /usr/sbin would be a better choice.

[jeff-mccoy]

I don't think it matters much if you remember this is for appliance mode only, k3s will be a boot item as well. If /usr/sbin is always in the rhel path (note that link was for Ubuntu, which doesn't have this issue), then that's probably fine. I'm not certain that's the case but am fairly certain that /sbin or /bin always is regardless of the os. We'd probably want to verify running as root vs sudo too since this is really an env variable issue.

Alternatively, we could just add /usr/local/bin to the path as an env variable on exec instead.

[RothAndrew]

I don't think it matters much if you remember this is for appliance mode only, k3s will be a boot item as well. If /usr/sbin is always in the rhel path (note that link was for Ubuntu, which doesn't have this issue), then that's probably fine. I'm not certain that's the case but am fairly certain that /sbin or /bin always is regardless of the os. We'd probably want to verify running as root vs sudo too since this is really an env variable issue.

Alternatively, we could just add /usr/local/bin to the path as an env variable on exec instead.

My assumption is that the rhel8 vagrant box that we have set up is representative of RHEL in general. Given that assumption, RHEL does include /usr/sbin by default in the PATH. Here's a screenshot:

Given this. I propose we go with /usr/sbin instead of /sbin. I do think it would work either way, but /usr/sbin feels more aligned with the stated intention of these different directories in Linux.

[jeff-mccoy]

Works for me

[YrrepNoj]

Funnily enough (at least on the Vagrant rhel8) /sbin simply symbolically links to usr/sbin. Changed to usr/sbin.

[YrrepNoj]

/test all

[jeff-mccoy]

Don't know if it matters but this line shouldn't exist anymore as we don't install k9s separately now. Was missed during #237.

[jeff-mccoy]

/test all