Preparations

1. apply the patch of the D552 (if not already applied)
2. connect to the server/vm via SSH
3. go to the project root folder
4. go to the tools folder
5. run the sudo ./fix_perms.sh command
6. go to the project root folder
7. go to the system/cache folder
8. run the sudo rm -Rf core modules themes command

Part 1 (No Command-Line Compilation)

1. perform the clean install
2. login to the Admin Console
3. go to the Configuration → Website → Advanced section
4. scroll to the System Settings subsection
5. confirm, that:
   • the Compiled Template Permission Mode system setting is present
   • it has a hint
   • it has 3 options in the dropdown
   • the No Command-Line Compilation option is selected
6. go to the Tools → System Tools section
7. use the Clear Templates Cache functionality
8. connect to the server/vm via SSH
9. go to the project root folder
10. confirm, that system/cache/core/admin_templates/incs folder:
    • is present
    • has drwxr-xr-x permissions
11. confirm, that system/cache/core/admin_templates/incs/form_blocks.php file:
    • is present
    • has -rw-r--r-- permissions

Part 2 (Command-Line Compilation with Server Configuration)

1. login to the Admin Console
2. go to the Configuration → Website → Advanced section
3. scroll to the System Settings subsection
4. change the value of the Compiled Template Permission Mode system setting to the Command-Line Compilation with Server Configuration and save changes
5. connect to the server/vm via SSH
6. go to the project root folder
7. confirm, that system/cache/core/admin_templates/incs folder:
   • is present
   • has drwxrwxr-x permissions
8. confirm, that system/cache/core/admin_templates/incs/form_blocks.php file:
   • is present
   • has -rw-rw-r-- permissions

Part 3 (Command-Line Compilation without Server Configuration (Security Risk) )

1. login to the Admin Console
2. go to the Configuration → Website → Advanced section
3. scroll to the System Settings subsection
4. change the value of the Compiled Template Permission Mode system setting to the Command-Line Compilation without Server Configuration (Security Risk) and save changes
5. connect to the server/vm via SSH
6. go to the project root folder
7. confirm, that system/cache/core/admin_templates/incs folder:
   • is present
   • has drwxr-xrwx permissions
8. confirm, that system/cache/core/admin_templates/incs/form_blocks.php file:
   • is present
   • has -rw-r--rw- permissions

Part 4 (compiled template removal error propagation)

1. login to the Admin Console
2. go to the Configuration → Website → Advanced section
3. scroll to the System Settings subsection
4. connect to the server/vm via SSH
5. go to the project root folder
6. run the sudo chown root:root system/cache/core/admin_templates/incs command (type your password if asked for) to change the owner of the folder, where compiled templates are stored
7. switch back to the Admin Console
8. change the value of the Compiled Template Permission Mode system setting to anything other, than current and save changes
9. confirm that you'll see an error message above the system settings list indicating which folders weren't deleted as part of the system setting change

Part 5 (fix_perms.sh script test)

1. connect to the server/vm via SSH
2. go to the project root folder
3. go to the tools folder
4. run the sudo ./fix_perms.sh command
5. confirm, that:
   • the system folder has drwxrwxrwx permissions
   • the system/cache folder has drwxrwxrwx permissions

Part 6 - upgrade

1. repeat Part 1, Part 2, Part 3 and Part 4, but doing an upgrade instead of clean install
2. confirm that Compiled Template Permission Mode system setting is positioned the same as during clean install