You define the command in econfig, like this:
- pre_update_hook "../scripts/backup"
+ pre_update_hook "/wherever/backup"
Restoring from backup
---------------------
-The server must not run when you restore a backup.
+The server must not be running when you restore a backup.
Always restore the complete data directory. Restoring individual
files from backups can lead to inconsistencies. Some of the known