While trying to install rvm and ruby on ubuntu, curl is not recognized but is installed

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I'm installing rvm/ruby onto ubuntu 12.04 but I'm running into an issue.

rvm successfully installs, but afterwards when I try to do rvm install ruby I get this output:

RVM requires 'curl'. Install 'curl' first and try again.
Warning, new version of rvm available '', you are using older version '1.24.7'.
You can disable this warning with:    echo rvm_autoupdate_flag=0 >> ~/.rvmrc
You can enable  auto-update  with:    echo rvm_autoupdate_flag=2 >> ~/.rvmrc
/usr/local/rvm/scripts/functions/utility_system: line 21: awk: command not found
/usr/local/rvm/scripts/functions/utility_system: line 22: dpkg: command not found
/usr/local/rvm/scripts/functions/utility_system: line 191: tr: command not found
/usr/local/rvm/scripts/functions/utility: line 210: head: command not found
/usr/local/rvm/scripts/functions/utility: line 204: sort: command not found
/usr/local/rvm/scripts/functions/utility_system: line 21: awk: command not found
/usr/local/rvm/scripts/functions/utility_system: line 22: dpkg: command not found
/usr/local/rvm/scripts/functions/utility_system: line 191: tr: command not found
/usr/local/rvm/scripts/functions/support: line 248: find: command not found
/usr/local/rvm/scripts/functions/utility_system: line 21: awk: command not found
/usr/local/rvm/scripts/functions/utility_system: line 22: dpkg: command not found
/usr/local/rvm/scripts/functions/utility_system: line 191: tr: command not found
/usr/local/rvm/scripts/functions/utility: line 210: head: command not found
/usr/local/rvm/scripts/functions/utility: line 204: sort: command not found
Searching for binary rubies, this might take some time.
No binary rubies available for: ///ruby-2.0.0-p353.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for .
Requirements support for ruby-2.0.0-p353 is not implemented yet,
report a bug here => https://github.com/wayneeseguin/rvm/issues
Requirements installation failed with status: 1.

The thing is, curl is installed:

# curl
curl: try 'curl --help' or 'curl --manual' for more information

I can run curl no problem. Any ideas?

rvm ubuntu curl ruby
1 Answers

UPDATE 2014-09

If you'are trying to install RVM system wide, preferred is to use a normal user (not root) for RVM installation.

$ curl -L get.rvm.io | bash -s stable
$ source ~/.rvm/scripts/rvm

$ rvm requirements
$ rvm install 2.1.3
$ rvm use --default 2.1.3

Also, perhaps off-topic, for a prod server and to replace default 1.8.7 (system wide) you could do it without RVM:

$ git clone https://github.com/sstephenson/ruby-build.git
$ cd ruby-build
$ ./install.sh

$ ruby-build 2.1.3 /usr/local
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