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By Tim Hemi

Post Mountain Lion Upgrade Syndrome

I recently upgraded the OS on my Macbook Pro 13' to Mountain Lion (OS X 10.8). As a Ruby on Rails developer, supporting many environments is a must, and the biological and technological diversity of our clients require a plethora of tools to be installed and operational on my Macbook.

Anywho I found that this guide was helpful with the upgrade: - Prem Sichanugrist.

Thanks Prem and to all those who left a comment detailing their experiences on the subject. I too had my own bumps to iron out and have documented them here.

With Ruby: 1.9.3p-125 I ran:

gem install rails 

This crashed when it was installing json-1.7.5 spitting out this message:

/usr/bin/gcc-4.2 not found

hmmm... since this was installed in the upgrade drill, i checked what was installed:

ls -ali /usr/local/bin/gc*
13662506 lrwxr-xr-x  1 themi  staff  16 17 Sep 10:34 /usr/local/bin/gcc-4.2 -> ../Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2
13610191 lrwxr-xr-x  1 themi  staff  47 16 Sep 15:16 /usr/local/bin/gcov-4.2 -> ../Cellar/apple-gcc42/4.2.1-5666.3/bin/gcov-4.2

ok great so...

sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2 /usr/bin/gcc-4.2

(A similar fix is also mentioned in the remarks of the guide i followed)

BAM!! Back in business.

With Ruby: 1.8.7p-358 I ran

rake db:migrate

I got:

rake aborted!
dlopen(/Users/themi/.rvm/gems/ruby-1.8.7-p358@core/gems/rmagick-2.10.0/lib/RMagick2.bundle, 9): Library not loaded: /usr/lib/libltdl.7.dylib
Referenced from: /usr/local/lib/libMagickCore.5.dylib
Reason: image not found - /Users/themi/.rvm/gems/ruby-1.8.7-p358@core/gems/rmagick-2.10.0/lib/RMagick2.bundle

Alright sounds like i need to upgrade something so...

brew update
brew upgrade imagemagick
bundle install


I found these solutions worked for others who had a similar issue:

gem pristine rmagick


brew remove imagemagick
gem uninstall rmagick
bundle install


RAILS_ENV=development lib/daemons/importerd_ctl.rb start

(This is a ruby file which spins up a daemon controller)

NOTE: I Typed:

relying on the bash history to autocomplete

then I got:

env: ruby\r: No such file or directory

Naturally it took me a while to realise what was up but I eventiualy got there...

rm -f ~/.bash_history


It turns out that the history file had escape codes in it that appear to be interpreted differently now.

So that was my experiences, I am very happy with Mountain Lion, sure there was no wow factor in the upgrade but its the small things that make up the total experience.

So I would like to close with my favourite quote:

"Man is the creator of change in this world. As such he should be above systems and structures, and not subordinate to them." - Steve Jobs

Happy Coding - Tim Hemi

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