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bmcutler merged 3 commits into from
Apr 10, 2026
Merged

[Documentation:System] added documentation for preserving files #738

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e55d020
added documentation for preserving files
hyeenaa Mar 10, 2026
fa454f6
updated capitalization to maintain formatting
hyeenaa Mar 15, 2026
f8205cf
Update system_customization.md
bmcutler Apr 10, 2026
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16 changes: 16 additions & 0 deletions _docs/sysadmin/installation/system_customization.md
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Expand Up @@ -372,7 +372,23 @@ You can customize the login screen with markdown. By default, `# Login` is rende

Refer to [this](/student/communication/markdown) to learn more about markdown.

## Preserving system customization files on system re-installation

To prevent your system customization files (e.g., your institute logo on the login screen logo or your custom oage footer) from being overwritten or deleted from a system re-install, add these files to the follow JSON file:

The JSON file will be generated at `CONFIG_DIR/preserve_file_list.json` which is most likely `/usr/local/submitty/config/preserve_files_list.json`

the format will be as follows:

```
[
"/path/to/file",
"/more/files/,
...
]
```

These files will be preserved when INSTALL_SUBMITTY.sh is run on the system.

## Changing the multi-processing module of Apache2, Enabling HTTP2

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