I turn the site in maintenance mode for update Drupal Core from 7.30 to 7.32. I follow the step on Drupal docmentation to delete all folders and files, beside "site" folder(on step 5). However, I got the error message and warning about missing files. I dont think that how maintenace mode should be. What am i missing?
1. the site does show in maintenance mode before I delete all the folders and files(beside site folder)
2. Site back to normal after copying v7.32 folders and files(beside site folder)