Installing RVM: getting error "There was an error(23)."

Question

I am trying to install Ruby Version Manager (RVM) without success. How to get through this error I am getting?

ubuntu@ip-172-31-0-20:/tmp$ rvm install ruby-1.9.3-p484
Searching for binary rubies, this might take some time.
No binary rubies available for: ubuntu/14.04/x86_64/ruby-1.9.3-p484.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for ubuntu.
Requirements installation successful.
Installing Ruby from source to: /usr/local/rvm/rubies/ruby-1.9.3-p484, this may take a while depending on your cpu(s)...
ruby-1.9.3-p484 - #downloading ruby-1.9.3-p484, this may take a while depending on your connection...
Warning: Failed to create the file ruby-1.9.3-p484.tar.bz2.part: Permission
Warning: denied
  0 9806k    0  1002    0     0  22905      0  0:07:18 --:--:--  0:07:18 23302
curl: (23) Failed writing body (0 != 1002)
There was an error(23).
Checking fallback: http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p484.tar.bz2
Warning: Failed to create the file ruby-1.9.3-p484.tar.bz2.part: Permission
Warning: denied
  0 9806k    0  1167    0     0   4300      0  0:38:55 --:--:--  0:38:55  4290
curl: (23) Failed writing body (0 != 1167)
There was an error(23).
Failed download
There has been an error fetching the ruby interpreter. Halting the installation.
ubuntu@ip-172-31-0-20:/tmp$

Answer 1

Your RVM is installed in /usr/local/rvm - it's often called system installation, this requires that your user ubuntu will be added to rvm group:

rvm group add rvm "$USER"

yes use $USER it will be replaced by your shell with your user name

then log out and log in, ensure with:

id

that your user is in rvm group,

finally just in case update permissions for RVM:

rvm fix-permissions