Installing mySql GEM on Ubuntu?

ruby-talk
1

I am running Linx Mint, a version of Ubuntu, and I installed Ruby
and Rails. However, when I try to install the mySql package via. gem, "gem
install mysql" I get an error message (See below) with no idea how to fix
the error. I looked on the net (Google), but all suggestions do not work
with this Linux.

Also, as far as I know, I have all of the correct mySql drivers/headers,
etc.

=================== error message ==================================

Select which gem to install for your platform (i486-linux)
1. mysql 2.7.3 (mswin32)
2. mysql 2.7.1 (mswin32)
3. mysql 2.7 (ruby)
4. mysql 2.6 (ruby)
5. mysql 2.5.1 (ruby)
6. Cancel installation

3

Building native extensions. This could take a while...
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1

ERROR: While executing gem ... (RuntimeError)
    ERROR: Failed to build gem native extension.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.

2

http://blogs.law.harvard.edu/hoanga/2006/10/27/fixing-mkmf-load-error-ruby-in-ubuntu/

apt-get install ruby-dev

If that doesn't help, tell us how did you install ruby (from package
or from source), and whether you have installed build-essential
package (i.e. can you compile anything?)

···

On 6/29/07, David <me@me.com> wrote:

I am running Linx Mint, a version of Ubuntu, and I installed Ruby
and Rails. However, when I try to install the mySql package via. gem, "gem
install mysql" I get an error message (See below) with no idea how to fix
the error. I looked on the net (Google), but all suggestions do not work
with this Linux.

Also, as far as I know, I have all of the correct mySql drivers/headers,
etc.

=================== error message ==================================

Select which gem to install for your platform (i486-linux)
1. mysql 2.7.3 (mswin32)
2. mysql 2.7.1 (mswin32)
3. mysql 2.7 (ruby)
4. mysql 2.6 (ruby)
5. mysql 2.5.1 (ruby)
6. Cancel installation
> 3
Building native extensions. This could take a while...
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1

ERROR: While executing gem ... (RuntimeError)
    ERROR: Failed to build gem native extension.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.

3

Try:

sudo apt-get install libmysql-ruby

This will install the distribution's MySQL library. It works well in
production, I've used it many times in both server and development
environments.

Robert

···

On 6/29/07, David <me@me.com> wrote:

I am running Linx Mint, a version of Ubuntu, and I installed Ruby
and Rails. However, when I try to install the mySql package via. gem, "gem
install mysql" I get an error message (See below) with no idea how to fix
the error. I looked on the net (Google), but all suggestions do not work
with this Linux.

Also, as far as I know, I have all of the correct mySql drivers/headers,
etc.

=================== error message ==================================

Select which gem to install for your platform (i486-linux)
1. mysql 2.7.3 (mswin32)
2. mysql 2.7.1 (mswin32)
3. mysql 2.7 (ruby)
4. mysql 2.6 (ruby)
5. mysql 2.5.1 (ruby)
6. Cancel installation
> 3
Building native extensions. This could take a while...
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1

ERROR: While executing gem ... (RuntimeError)
    ERROR: Failed to build gem native extension.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.7for inspection.

--
Robert W. Oliver II
CEO of OCS Solutions, Inc., Web Hosting and Development