First one was


muziboo@debian:~/muziboo/muz$ rake db:migrate
(in /home/muziboo/muziboo/muz)
rake aborted!
no such file to load -- hpricot


When I tried to install hpricot and that resulted in the following


muziboo@debian:~/muziboo/muz$ gem install hpricot
ERROR: While executing gem ... (RuntimeError)
Unsupported architecture: x86_64


To get rid of this error, I downloaded the latest rubygems package from rubyforge and the gem command started working fine. However I ran into this error now


debian:~/Softwares/rubygems-0.9.4# gem install hpricot --source http://code.whytheluckystiff.net
Bulk updating Gem source index for: http://code.whytheluckystiff.net
Select which gem to install for your platform (x86_64-linux)
1. hpricot 0.6 (mswin32)
2. hpricot 0.6 (jruby)
3. hpricot 0.6 (ruby)
4. hpricot 0.6 (jruby)
5. hpricot 0.6 (mswin32)
6. hpricot 0.6 (ruby)
7. Skip this gem
8. Cancel installation
> 3
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

I googled around a bit and then followed this post and the error disappeared but I started getting a new error about gcc missing on the system (during native extensions building stage). I installed that with apt-get install gcc-* (doing just apt-get install gcc resulted in header files missing error message). This time the native extensions were built properly and the gem was installed.

The next problem came with rmagick. I installed imagemagick and libmagick9-dev (to avoid getting a missing Magick-config error).

Once everything was working, I could run the app using mongrel_rails start but I could still not get it up in the rubyworks framework. I would always get a 500 error. I had symlinked /usr/rails to my app’s directory.

After lots of tests and experiments, I found out that rubyworks runs the processes as user rails and therefore your app’s directory should be writeable by user rails. I don’t know what is a good way to do that but I tried to make rails the owner of the app’s directory, the application started running all fine.

So these are some of the steps where i faced some problems and thought of writing about it. I hope someone will save some time because of this. If you do, please let me know :)