Hi,

Type in rvm list first to see what Ruby version you have got installed.
Then rvm use 1.9.3 --default

Homepage: www.amidev.co.uk
On Feb 23, 2012 4:33 PM, "Ruby Student" <ruby.student / gmail.com> wrote:

> OK, I got rvm installed. It also looks like it installed ruby.
> But, how do I invoke ruby installed by rvm? When I type: *ruby -v*, I get
> an error.
>
>
> # rvm install 1.9.3
> Fetching yaml-0.1.4.tar.gz to /usr/local/rvm/archives
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100  460k  100  460k    0     0   340k      0  0:00:01  0:00:01 --:--:--
> 556k
> Extracting yaml-0.1.4.tar.gz to /usr/local/rvm/src
> Configuring yaml in /usr/local/rvm/src/yaml-0.1.4.
> Compiling yaml in /usr/local/rvm/src/yaml-0.1.4.
> Installing yaml to /usr/local/rvm/usr
> Installing Ruby from source to: /usr/local/rvm/rubies/ruby-1.9.3-p125,
> this may take a while depending on your cpu(s)...
>
> ruby-1.9.3-p125 - #fetching
> ruby-1.9.3-p125 - #downloading ruby-1.9.3-p125, this may take a while
> depending on your connection...
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100 9505k  100 9505k    0     0   395k      0  0:00:24  0:00:24 --:--:--
> 2177k
> ruby-1.9.3-p125 - #extracting ruby-1.9.3-p125 to
> /usr/local/rvm/src/ruby-1.9.3-p125
> ruby-1.9.3-p125 - #extracted to /usr/local/rvm/src/ruby-1.9.3-p125
> ruby-1.9.3-p125 - #configuring
> ruby-1.9.3-p125 - #compiling
> ruby-1.9.3-p125 - #installing
> Retrieving rubygems-1.8.17
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100  246k  100  246k    0     0   352k      0 --:--:-- --:--:-- --:--:--
> 659k
> Extracting rubygems-1.8.17 ...
> Removing old Rubygems files...
> Installing rubygems-1.8.17 for ruby-1.9.3-p125 ...
> Installation of rubygems completed successfully.
> ruby-1.9.3-p125 - adjusting #shebangs for (gem irb erb ri rdoc testrb
> rake).
> ruby-1.9.3-p125 - #importing default gemsets (/usr/local/rvm/gemsets/)
> Install of ruby-1.9.3-p125 - #complete
>
> [root@oc8821576380 ruby-1.9.3-p0]#* ruby -v*
> Command not found.
>
> Also,
>
> *# rvm rubygems mechanize*
> 'ruby' was not found, cannot install rubygems unless ruby is present (Do
> you have an RVM ruby installed & selected?)
>
> Thank you
>
> On Thu, Feb 23, 2012 at 8:53 AM, ami <raf / amidev.co.uk> wrote:
>
>> Hi,
>>
>> I would advise you to unistall your ruby installation and install rvm
>> first and go from there.
>>
>>
>> On Thu, 2012-02-23 at 22:44 +0900, Ruby Student wrote:
>> > Hello Team,
>> >
>> > I am trying to install mechanize but it is failing. Any help will be
>> > appreciated.
>> > Here are the details:
>> >
>> > OS: Red Hat Enterprise Linux Workstation release 6.2 (Santiago)
>> > Ruby:
>> > ruby -v
>> > ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]
>> >
>> > It complains that that library: libxslt is missing. However, the
>> > library IS installed:
>> > # rpm -qa | grep -i libxslt
>> > libxslt-python-1.1.26-2.el6.x86_64
>> > libxslt-1.1.26-2.el6.x86_64
>> >
>> > Also, if I try to install it it states that it is already installed:
>> >
>> > yum install libxslt
>> > Setting up Install Process
>> > Package libxslt-1.1.26-2.el6.x86_64 already installed and latest
>> > version
>> > Nothing to do
>> >
>> > Now the errors from gem:
>> >
>> > # gem install mechanize
>> > /usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
>> > It seems your ruby installation is missing psych (for YAML output).
>> > To eliminate this warning, please install libyaml and reinstall your
>> > ruby.
>> > Building native extensions.  This could take a while...
>> > ERROR:  Error installing mechanize:
>> >     ERROR: Failed to build gem native extension.
>> >
>> >         /usr/local/bin/ruby extconf.rb
>> > extconf.rb:10: Use RbConfig instead of obsolete and deprecated Config.
>> > checking for libxml/parser.h... yes
>> > checking for libxslt/xslt.h... no
>> > -----
>> > libxslt is missing.  please visit
>> > http://nokogiri.org/tutorials/installing_nokogiri.html for help with
>> > installing dependencies.
>> > -----
>> > *** extconf.rb failed ***
>> > Could not create Makefile due to some reason, probably lack of
>> > necessary libraries and/or headers.  Check the mkmf.log file for more
>> > details.  You may need configuration options.
>> >
>> > Provided configuration options:
>> >     --with-opt-dir
>> >     --without-opt-dir
>> >     --with-opt-include
>> >     --without-opt-include=${opt-dir}/include
>> >     --with-opt-lib
>> >     --without-opt-lib=${opt-dir}/lib
>> >     --with-make-prog
>> >     --without-make-prog
>> >     --srcdir=.
>> >     --curdir
>> >     --ruby=/usr/local/bin/ruby
>> >     --with-zlib-dir
>> >     --without-zlib-dir
>> >     --with-zlib-include
>> >     --without-zlib-include=${zlib-dir}/include
>> >     --with-zlib-lib
>> >     --without-zlib-lib=${zlib-dir}/lib
>> >     --with-iconv-dir
>> >     --without-iconv-dir
>> >     --with-iconv-include
>> >     --without-iconv-include=${iconv-dir}/include
>> >     --with-iconv-lib
>> >     --without-iconv-lib=${iconv-dir}/lib
>> >     --with-xml2-dir
>> >     --without-xml2-dir
>> >     --with-xml2-include
>> >     --without-xml2-include=${xml2-dir}/include
>> >     --with-xml2-lib
>> >     --without-xml2-lib=${xml2-dir}/lib
>> >     --with-xslt-dir
>> >     --without-xslt-dir
>> >     --with-xslt-include
>> >     --without-xslt-include=${xslt-dir}/include
>> >     --with-xslt-lib
>> >     --without-xslt-lib=${xslt-dir}/lib
>> >
>> >
>> > Gem files will remain installed
>> > in /usr/local/lib/ruby/gems/1.9.1/gems/nokogiri-1.5.0 for inspection.
>> > Results logged
>> > to
>> /usr/local/lib/ruby/gems/1.9.1/gems/nokogiri-1.5.0/ext/nokogiri/gem_make.out
>> >
>> > When I try to install psych or yaml I get the same errors listed
>> > above.
>> >
>> > Thank you
>> > --
>> > Ruby Student
>>
>>
>>
>>
>
>
> --
> Ruby Student
>