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$ rvm help # Documentation Index

Quick fix

Remove all the manually installed packages:

$ rm -rf $rvm_path/usr
Find the requirements (follow the instructions):
$ rvm requirements
Reinstall ruby:
$ rvm reinstall 1.9.3

Zlib

require "zlib" # => false ?!

If you have issues with zlib not being available in ruby / irb please try the procedure defined below.

$ rvm pkg install zlib
$ rvm reinstall 1.9.2 --with-zlib-dir=$rvm_path/usr

Where you replace '/usr/local' with the prefix where your zlib packages are.

If you can not seem to get this to work you can have RVM install a copy of zlib into ~/.rvm/usr like so:

$ rvm pkg install zlib
$ rvm reinstall 1.9.2

In case of compilation problems try:

$ rvm --skip-autoreconf pkg install zlib

RVM Documentation Index