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These are instructions on how to upgrade Gitlab 5.0 to 5.1 on CentOS 6.

This guide assumes you already followed my How to install Gitlab 5.0 on CentOS 6 or RHEL6 post.

1. As the root user stop the Gitlab service
   
   [root@localhost ~] service gitlab stop # Wait a few moments before continuing. Shutting down Gitlab took 30sec-1min on my system.

   1 2	[root@localhost ~] service gitlab stop # Wait a few moments before continuing. Shutting down Gitlab took 30sec-1min on my system.

   
    
2. Switch to the ‘sa_gitlab’ user account and move into your gitlab directory
   
   [root@localhost ~] su - sa_gitlab [sa_gitlab@localhost~] cd gitlab

   1 2	[root@localhost ~] su - sa_gitlab [sa_gitlab@localhost~] cd gitlab

   
    
3. Update Gitlab source from 5.0 to 5.1
   
   [sa_gitlab@localhost~] git fetch [sa_gitlab@localhost~] git checkout 5-1-stable

   1 2	[sa_gitlab@localhost~] git fetch [sa_gitlab@localhost~] git checkout 5-1-stable

   
    
4. Configure Puma which is replacing Unicorn
   
   [sa_gitlab@localhost~] cp config/puma.rb.example config/puma.rb [sa_gitlab@localhost~] vim config/puma.rb # -------- Make the following edits -------- application_path = '/data/apps/sa_gitlab/gitlab' bind 'tcp://127.0.0.1:65527' # -------- Save and close the file --------

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   [sa_gitlab@localhost~] cp config/puma.rb.example config/puma.rb [sa_gitlab@localhost~] vim config/puma.rb   # -------- Make the following edits --------     application_path = '/data/apps/sa_gitlab/gitlab'   bind 'tcp://127.0.0.1:65527'   # -------- Save and close the file --------

   
    
5. Redeploy Gitlab (I think that’s what this does anyway)
   
   # You may not need to do this. I ran into some errors during my upgrade but my ISP was having problems at the time. It won't hurt to run these commands either way. [sa_gitlab@localhost~] gem install sanitize -v '2.0.3' [sa_gitlab@localhost~] gem install jquery-rails -v '2.1.3' # These commands you DO need to run [sa_gitlab@localhost~] bundle install --without development test postgres --deployment [sa_gitlab@localhost~] bundle exec rake db:migrate RAILS_ENV=production [sa_gitlab@localhost~] bundle exec rake migrate_merge_requests RAILS_ENV=production # When prompted choose 'Yes'

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   # You may not need to do this. I ran into some errors during my upgrade but my ISP was having problems at the time. It won't hurt to run these commands either way. [sa_gitlab@localhost~] gem install sanitize -v '2.0.3' [sa_gitlab@localhost~] gem install jquery-rails -v '2.1.3'   # These commands you DO need to run [sa_gitlab@localhost~] bundle install --without development test postgres --deployment [sa_gitlab@localhost~] bundle exec rake db:migrate RAILS_ENV=production [sa_gitlab@localhost~] bundle exec rake migrate_merge_requests RAILS_ENV=production # When prompted choose 'Yes'

   
    
6. Switch back to root and update the Gitlab start-up script
   
   [sa_gitlab@localhost~] exit [root@localhost ~] mv /etc/init.d/gitlab /etc/init.d/gitlab.50 [root@localhost ~] curl --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/5-1-stable/init.d/gitlab [root@localhost ~] vim /etc/init.d/gitlab # -------- Make the following edits -------- # The lines with a + are lines you need to add to the script APP_ROOT="/data/apps/sa_gitlab/gitlab" + APP_USER="sa_gitlab" # Search/Replace "sudo -u git" with "sudo -u $APP_USER" # -------- Save and close the file -------- [root@localhost ~] chmod +x /etc/init.d/gitlab

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   [sa_gitlab@localhost~] exit   [root@localhost ~] mv /etc/init.d/gitlab /etc/init.d/gitlab.50 [root@localhost ~] curl --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/5-1-stable/init.d/gitlab [root@localhost ~] vim /etc/init.d/gitlab   # -------- Make the following edits -------- # The lines with a + are lines you need to add to the script     APP_ROOT="/data/apps/sa_gitlab/gitlab" + APP_USER="sa_gitlab"   # Search/Replace "sudo -u git" with "sudo -u $APP_USER"   # -------- Save and close the file --------   [root@localhost ~] chmod +x /etc/init.d/gitlab

   
    
7. Start up Gitlab and then restart Apache if your using mod_proxy
   
   [root@localhost ~] service gitlab start [root@localhost ~] service httpd restart

   1 2	[root@localhost ~] service gitlab start [root@localhost ~] service httpd restart

   
    
8. Update Gitlab Shell
   
   [root@localhost ~] su - sa_gitlab [sa_gitlab@localhost~] cd gitlab-shell [sa_gitlab@localhost~] git pull [sa_gitlab@localhost~] bin/install [sa_gitlab@localhost~] bin/check

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   [root@localhost ~] su - sa_gitlab [sa_gitlab@localhost~] cd gitlab-shell [sa_gitlab@localhost~] git pull [sa_gitlab@localhost~] bin/install [sa_gitlab@localhost~] bin/check

All done! Hopefully this went slightly more smoothly for you then it did me. I noticed the first time loading Gitlab after the upgrade as a bit slow but things were nice and quick after that.

Updated April 26th, 2013 – Added instructions for updating Gitlab shell.

Updated May 22nd, 2013 – Wrote an article on How to go from 5.1 to 5.2