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Add cloud-init image building functionality to eMMC provisioning dashboard: implement API for downloading the latest Raspberry Pi OS Lite, injecting cloud-init files, and updating UI for cloud-init image creation. Enhance backup options with compression support for raw .img files using PiShrink, and update documentation to reflect new features and usage instructions.

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nearxos
2026-02-18 22:51:43 +02:00
parent 3abc004465
commit 40b8e15e75
4 changed files with 359 additions and 5 deletions
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7
chromium-setup/emmc-provisioning/docs/EMMC-PROVISIONING-GUIDE.md
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@@ -208,11 +208,12 @@ Raw full-disk backups and golden images are the full size of the eMMC (e.g. 32
```bash
echo 'SHRINK_BACKUP=1' | sudo tee -a /opt/cm4-provisioning/env
# Optional: compress after shrinking (smaller file, but must decompress before using as golden image)
# echo 'PISHRINK_COMPRESS=gz' | sudo tee -a /opt/cm4-provisioning/env # or xz
# Optional: compress after shrinking (smaller file; must decompress before using as golden image)
# echo 'PISHRINK_COMPRESS=gz' | sudo tee -a /opt/cm4-provisioning/env # good balance
echo 'PISHRINK_COMPRESS=xz' | sudo tee -a /opt/cm4-provisioning/env # minimum size (slower)
```
With `SHRINK_BACKUP=1`, once a backup finishes, the script runs PiShrink on the `.img` file. Use `PISHRINK_COMPRESS=gz` or `xz` for maximum size reduction; the file becomes `.img.gz` or `.img.xz` and must be decompressed before deploy (e.g. `gunzip -c backup.img.gz > golden.img`).
With `SHRINK_BACKUP=1`, once a backup finishes, the script runs PiShrink on the `.img` file. Use **`PISHRINK_COMPRESS=xz`** for **minimum size** (smallest file, slower); or **`gz`** for a good balance. The file becomes `.img.xz` or `.img.gz` and must be decompressed before deploy (e.g. `xz -dk backup.img.xz` then copy to `golden.img`).
3. **Shrink a golden image manually** (e.g. after building from Raspberry Pi OS):