Brownout woes - version being updated to already exists

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1

Hi folks!
The power failed twice in quick succession, but it seemed my media server which is running on Debian 12 with LVM, restarted successfully; no damage done, so I thought. Duplicati was set to backup to mega.nz but I retained only one backup, since I’m on a Pro 1 account.

The system when restarted failed, unable to boot load LVM modules. I decided to reinstall Debian since I had a backup on mega.nz

After many, many hours “restoring” only the folders were recreated with no contents. The errors mentioned a lack of disc space for the database. I noticed/ logical volume /tmp was almost full. Through this forum I discovered how to move to a bigger “temp” folder. I started recover again and monitored the Live log. There were no errors nor any warnings . After about nine or ten hours nothing more was appearing in the verbose live log. I checked on “top” where “unrar” was shown running. At which point I went to bed.

This morning no files were restored, only the empty folders.

It seems that Duplicati had backed up a damaged system? The question is , is it possible to recover the missing files?

Is it worth my posting the logs?

John

2

Duplicati does not use unrar so I do not think that is related.

It should not matter if the backup is from a damaged system, in that case you can recover what is not damaged.

I have seen the problem with /tmp being filled a few times, so maybe this has caused issues. Have you tried rebooting and then settings --tempdir=/path/with/more/space when doing the restore?

If it is not possible to recover files the normal way, there is a recovery tool as well, that can handle almost any broken issue, but speed is not great:

3

Thank you that gives me hope to know that

Yes I had set tempdir to a logical volume with ample storage.

How do I run Duplicati.CommandLine.RecoveryTool on debian 12? It’s a headless server.

Very grateful for your help .

John

4

The tool is commandline/shell based. If you are on 2.0.8.1 or earlier, you should have the file /usr/lib/Duplicati/Duplicati.CommandLine.RecoveryTool.exe.

Despite the Windows-like name, it is a portable executable, so you can run it with:

mono /usr/lib/Duplicati/Duplicati.CommandLine.RecoveryTool.exe help

If you are using 2.0.9.102 or newer, it is called duplicati-recovery-tool and has an entry in /usr/bin so you should be able to just invoke it.

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Thanks again for your help
John

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I followed your advice to reboot after setting a new location for the temp folder.

I started restore and within twelve hours files were being restored to their original locations. That was Friday night UTC.

BY 09:15 on Saturday morning over 50% of the files had been restored, but there has been no progress since. Server State shows:

lastPgEvent : {“BackupID”:“23f006db-2297-40f1-9afe-2392cfbc070c”,“TaskID”:13,“BackendAction”:“Get”,“BackendPath”:“duplicati-b83aa88edca344d1a861d34c3bdf52961.dblock.zip.aes”,“BackendFileSize”:52366573,“BackendFileProgress”:52166656,“BackendSpeed”:601,“BackendIsBlocking”:false,“CurrentFilename”:null,“CurrentFilesize”:0,“CurrentFileoffset”:0,“CurrentFilecomplete”:true,“Phase”:“Restore_DownloadingRemoteFiles”,“OverallProgress”:0,“ProcessedFileCount”:17488,“ProcessedFileSize”:287016571076,“TotalFileCount”:30462,“TotalFileSize”:866835860388,“StillCounting”:false

and has not changed since Saturday morning.

Running task: Restoring: 12974 files (540.00 GB) to go at 594 bytes

The backup files are on mega.nz

Please advise to continue without jeopardising the existing recovered files.

Many thanks

John

7

Is it still stuck?

I have heard of extremely slow “Starting to restore”, but I do not recall anyone reporting a stall in the middle. Any chance the WebUI is just stuck and the restore is still running?

That should not be a problem if you end up restarting the restore.
A step in the restore process is to check which files (and blocks) are already restored, and it will not touch those that are restored correctly already.

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Can this be done from the webui?

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AFAIK it’s not something you ask for – it’s always there when you restore.