Document that only unicorn and sidekiq should be stopped.

And the rest of GitLab should remain running.
Also clarified the rest of the GitLab Omnibus restore procedure.

doc/raketasks/backup_restore.md

@@ -295,37 +295,55 @@ Deleting tmp directories...[DONE]
 
 ### Omnibus installations
 
-We will assume that you have installed GitLab from an omnibus package and run
+We will assume that you have installed GitLab from an Omnibus package and run
 `sudo gitlab-ctl reconfigure` at least once.
 
-First make sure your backup tar file is in `/var/opt/gitlab/backups` (or wherever `gitlab_rails['backup_path']` points to).
+First make sure your backup tar file is in the directory specified by
+`gitlab_rails['backup_path']`.  The default is `/var/opt/gitlab/backups`:
 
 ```shell
 sudo cp 1393513186_gitlab_backup.tar /var/opt/gitlab/backups/
 ```
 
-Next, restore the backup by running the restore command. You need to specify the
-timestamp of the backup you are restoring.
+Stop the processes that are connected to the database.  The rest of GitLab
+should remain running:
 
 ```shell
-# Stop processes that are connected to the database
+sudo gitlab-ctl start
 sudo gitlab-ctl stop unicorn
 sudo gitlab-ctl stop sidekiq
+```
 
-# This command will overwrite the contents of your GitLab database!
-sudo gitlab-rake gitlab:backup:restore BACKUP=1393513186
+Verify that only unicorn and sidekiq are stopped:
 
-# Start GitLab
-sudo gitlab-ctl start
+```shell
+sudo gitlab-ctl status
+```
 
-# Check GitLab
-sudo gitlab-rake gitlab:check SANITIZE=true
+Next, restore the backup by running the restore command. You need to specify the
+timestamp of the backup you are restoring.
+
+```shell
+# This command will overwrite the contents of your GitLab database!
+sudo gitlab-rake gitlab:backup:restore BACKUP=1393513186
 ```
 
 If there is a GitLab version mismatch between your backup tar file and the installed
 version of GitLab, the restore command will abort with an error. Install a package for
 the [required version](https://www.gitlab.com/downloads/archives/) and try again.
 
+Restart unicorn and sidekiq:
+
+```shell
+sudo gitlab-ctl start
+```
+
+Check GitLab:
+
+```shell
+sudo gitlab-rake gitlab:check SANITIZE=true
+```
+
 ## Configure cron to make daily backups
 
 ### For installation from source:
@@ -345,31 +363,32 @@ Add the following lines at the bottom:
 The `CRON=1` environment setting tells the backup script to suppress all progress output if there are no errors.
 This is recommended to reduce cron spam.
 
-### For omnibus installations
+### For Omnibus installations
 
-To schedule a cron job that backs up your repositories and GitLab metadata, use the root user:
+Edit the crontab for user `git`:
 
-```
-sudo su -
-crontab -e
+```shell
+sudo crontab -e -u git
 ```
 
-There, add the following line to schedule the backup for everyday at 2 AM:
+Add the following line to schedule a backup of your repositories and GitLab
+metadata every day at 2 AM.  Note the empty line after the command:
 
 ```
 0 2 * * * /opt/gitlab/bin/gitlab-rake gitlab:backup:create CRON=1
+
 ```
 
 You may also want to set a limited lifetime for backups to prevent regular
-backups using all your disk space.  To do this add the following lines to
+backups from consuming too much disk space.  To do this add the following lines to
 `/etc/gitlab/gitlab.rb` and reconfigure:
 
-```
+```ruby
 # limit backup lifetime to 7 days - 604800 seconds
 gitlab_rails['backup_keep_time'] = 604800
 ```
 
-NOTE: This cron job does not [backup your omnibus-gitlab configuration](#backup-and-restore-omnibus-gitlab-configuration) or [SSH host keys](https://superuser.com/questions/532040/copy-ssh-keys-from-one-server-to-another-server/532079#532079).
+NOTE: This cron job does not [back up your omnibus-gitlab configuration](#backup-and-restore-omnibus-gitlab-configuration) or [SSH host keys](https://superuser.com/questions/532040/copy-ssh-keys-from-one-server-to-another-server/532079#532079).
 
 ## Alternative backup strategies