Update docs based on customer upgrade from 4.0 [ci skip]

1 files changed, 18 insertions, 2 deletions

diff --git a/doc/update/6.5-to-6.6.md b/doc/update/6.5-to-6.6.md
index c24e83eb006..bbed2b30215 100644
--- a/doc/update/6.5-to-6.6.md
+++ b/doc/update/6.5-to-6.6.md
@@ -46,12 +46,28 @@ sudo -u git -H git checkout v1.8.0
 ```bash
 cd /home/git/gitlab
 
-# MySQL installations (note: the line below states '--without ... postgres')
+# The Modernizr gem was yanked from RubyGems. It is required for GitLab >= 2.8.0
+# Edit `Gemfile` and change `gem "modernizr", "2.5.3"` to
+# `gem "modernizr-rails", "2.7.1"``
+sudo -u git -H vim Gemfile
+
+# MySQL
+
+# Run a bundle install without deployment to generate the new Gemfile
+sudo -u git -H bundle install --without development test postgres --no-deployment
+
+# Install libs (with deployment this time)
 sudo -u git -H bundle install --without development test postgres --deployment
 
-# PostgreSQL installations (note: the line below states '--without ... mysql')
+# PostgreSQL
+
+# Run a bundle install without deployment to generate the new Gemfile
+sudo -u git -H bundle install --without development test mysql --no-deployment
+
+# Install libs (with deployment this time)
 sudo -u git -H bundle install --without development test mysql --deployment
 
+# Both MySQL and PostgreSQL
 
 # Run database migrations
 sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production