Summary
After upgrading the official Linux x64 build from Decaid 0.7.17 to 0.8.1 in a headless/systemd installation, Decaid started with a new empty application data directory instead of migrating the existing data.
The old data was not deleted, but the UI appeared to have lost all custom profiles, extraction history, steam history, workflows, and favorites. This is especially disruptive for unattended Coffee Server installations because users may reasonably assume their production data has been erased.
Environment
- Ubuntu Server 24.04 LTS, x86_64
- Headless installation managed by systemd
- Official Decaid Linux x64 release archives
- Upgrade path: 0.7.17 → 0.8.1
Previous data layout
The 0.7.17 installation was launched with a working directory containing:
streamline_bridge.sqlitestore/*.hive
Before the upgrade, the existing database contained:
- 89 profile records, including 9 custom profiles
- 1 workflow
- 259 shot records
- 34 steam records
The existing Streamline store also contained five user-selected favorites.
Actual behavior
On first launch, 0.8.1 created and used a new data location:
~/.local/share/decaid/streamline_bridge.sqlite~/.local/share/decaid/store/streamline-app.hive
The newly created database contained:
- 71 default profiles
- 0 custom profiles
- 0 workflows
- 0 shot records
- 0 steam records
Favorites were also reset.
The startup log reported:
Default profiles: 71 new, 0 refreshed, 0 existing (71 total)
The old database and Hive files remained intact in the previous working directory, but were not discovered or migrated.
Manual recovery
The data was successfully restored by:
- Stopping Decaid.
- Backing up both old and new data directories.
- Copying the legacy
streamline_bridge.sqlite into ~/.local/share/decaid/.
- Copying the legacy
store/*.hive files into ~/.local/share/decaid/store/.
- Restoring ownership and starting Decaid.
After recovery, all 89 profiles, the workflow, 259 shots, 34 steam records, and all five favorites reappeared. The startup log then reported:
Default profiles: 0 new, 0 refreshed, 71 existing (71 total)
Expected behavior
When upgrading from 0.7.x to 0.8.x on Linux, Decaid should:
- Detect the legacy database and store in the configured/previous working directory.
- Migrate the database and all Hive stores atomically to the new application data directory.
- Preserve custom profiles, workflows, shot/steam history, favorites, and settings.
- Verify the migration before starting with a new empty database.
- Show a clear warning and recovery path if migration cannot be completed.
An automated migration test for a populated 0.7.x Linux data directory would help prevent this regression.
No data was permanently deleted in this case, but without manual inspection and recovery the upgrade looks like a complete data loss.
Summary
After upgrading the official Linux x64 build from Decaid 0.7.17 to 0.8.1 in a headless/systemd installation, Decaid started with a new empty application data directory instead of migrating the existing data.
The old data was not deleted, but the UI appeared to have lost all custom profiles, extraction history, steam history, workflows, and favorites. This is especially disruptive for unattended Coffee Server installations because users may reasonably assume their production data has been erased.
Environment
Previous data layout
The 0.7.17 installation was launched with a working directory containing:
streamline_bridge.sqlitestore/*.hiveBefore the upgrade, the existing database contained:
The existing Streamline store also contained five user-selected favorites.
Actual behavior
On first launch, 0.8.1 created and used a new data location:
~/.local/share/decaid/streamline_bridge.sqlite~/.local/share/decaid/store/streamline-app.hiveThe newly created database contained:
Favorites were also reset.
The startup log reported:
Default profiles: 71 new, 0 refreshed, 0 existing (71 total)The old database and Hive files remained intact in the previous working directory, but were not discovered or migrated.
Manual recovery
The data was successfully restored by:
streamline_bridge.sqliteinto~/.local/share/decaid/.store/*.hivefiles into~/.local/share/decaid/store/.After recovery, all 89 profiles, the workflow, 259 shots, 34 steam records, and all five favorites reappeared. The startup log then reported:
Default profiles: 0 new, 0 refreshed, 71 existing (71 total)Expected behavior
When upgrading from 0.7.x to 0.8.x on Linux, Decaid should:
An automated migration test for a populated 0.7.x Linux data directory would help prevent this regression.
No data was permanently deleted in this case, but without manual inspection and recovery the upgrade looks like a complete data loss.