Installing Rails on a Mac

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What a lot of grief!

After trying more simple steps on another site (and failing) I eventually managed to get the following steps to work:

http://hivelogic.com/narrative/articles/ruby-rails-mongrel-mysql-osx


There were however some changes:

01: Make sure you download TextMate. I kept reading it as TextEdit for some reason, so just be aware of that when "mate ~/.bash_login" wont work.

02: One of the steps tells you to type "make ~/.bash_login". I found that adding the suggested text to that file made no difference when you log out/in or close the Terminal window. This was because a file named "~/.bash_profile" existed. If this file exists then you should modify it instead of the one mentioned in the article.

03: When trying to do "rake db:migrate" I would experience the following error:

otherwise you will experience the following error:
dyld: NSLinkModule() error
dyld: Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient.15.dylib
Referenced from: /usr/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle
Reason: image not found
Trace/BPT trap

This is because the latest version of MySql has changed a path from lib/mysql to just lib/. To fix this problem you need to type the following (it's all one line):

sudo install_name_tool -change /usr/local/mysql/lib/mysql/libmysqlclient.15.dylib /usr/local/mysql/lib/libmysqlclient.15.dylib /usr/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle

Right then. Now that those Hellish few days are over it's time to get annoyed with trying to write a website I suppose :-)

Comments

Unknown said…
Thanks for this post... the mysql fix worked like a charm and saved me a lot of headache
16 August 2007 at 04:22
Bladehawke said…
Pointed me in the right direction for a related issue. I chose to fix the mysql libraries with:

for i in *dylib ; do \
sudo install_name_tool -id $PWD/$i $i; \
done

run from /usr/local/mysql/lib.
28 August 2007 at 07:38
Ben Schwarz said…
Thanks. I had to change my path for the bundle to /opt/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.bundle
Otherwise, smooth sailing
2 October 2007 at 07:22
Anonymous said…
Dude! You just made my sunday morning. This helped big time.

cheers
6 January 2008 at 17:00
Anonymous said…
Using datamapper with merb and mysql, has to also do:

sudo install_name_tool -change /usr/local/mysql/lib/mysql/libmysqlclient.15.dylib /usr/local/mysql/lib/libmysqlclient.15.dylib /usr/local/lib/ruby/gems/1.8/gems/do_mysql-0.9.1/lib/do_mysql_ext.bundle

Thanks, would never have worked that out!
9 June 2008 at 01:26
Unknown said…
thank very much to both blogger and anonymous

After reinstall mysql sinatra don't run and show message like:

LoadError: dlopen(/usr/local/lib/ruby/gems/1.8/gems/do_mysql-0.10.0/lib/do_mysql_ext.bundle, 9): Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient.16.dylib

Using datamapper with sinatra do_mysql

try this

sudo install_name_tool -change /usr/local/mysql/lib/mysql/libmysqlclient.16.dylib /usr/local/mysql/lib/libmysqlclient.16.dylib /usr/local/lib/ruby/gems/1.8/gems/do_mysql-0.10.0/lib/do_mysql_ext.bundle

and works on
2 June 2010 at 11:33
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