RVM cannot use ruby with sudo

Question

Hi guys,

I've just started playing with Ruby Version Manager (http://rvm.beginrescueend.com/rvm/cli/).

I have succefully configured rvm to use ruby 1.9.2 and everythin is fine.

However when I'm trying to do something using sudo no rvm or installed ruby is detected

administrator@hosting-live-2:~$ ruby -v ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux] administrator@hosting-live-2:~$ sudo ruby -v [sudo] password for administrator: sudo: ruby: command not found

Is that correct behavior or i haven't configured RVM in right way.

May be I should use system wide install (http://rvm.beginrescueend.com/deployment/system-wide/)???

Regards, Alexey

Answer 1

Sudo is resetting your PATH. rvm works by modifying your PATH environment variable so that the ruby you're using is a particular one, probably in your ~/.rvm/rubies directory. When you ruby ruby with sudo, sudo is not using that modified PATH, and so it will not find your rvm ruby. See this question for workarounds: http://stackoverflow.com/questions/257616/sudo-changes-path-why

Answer 2

Use rvmsudo command instead of sudo