From 2.0 to 2.1 - Hopebaytech/gitlabhq GitHub Wiki
1. Update code & db
# from github
git pull origin master
# install some packages
sudo apt-get install redis-server libicu-dev
# install gems
sudo gem install charlock_holmes -v '0.6.8'
bundle install --without development test
# update db
bundle exec rake db:migrate RAILS_ENV=production