This problem has been reported before and claimed to be fixed. I am getting the same error when backing up which causes my next automatic backup to not start.

Observations

• During backup there is a ~/.cache/deja-dup/metadata directory with only a README file
• After automatic backup the Deja-Dup application displays, “Backup Failed”: Could not restore ‘~/.cache/deja-dup/metadata’: File not found in backup"
• After the backup the metadata directory has been removed
• Problem occurs with automatic and manual backups

Setup

• Symbolic link from ~/.cache/deja-dup -> /home/backup/data/deja-dup (required because there is not enough space on the disk hosting my home directory)
• Automatic daily backups (occurs at 0200) to large 2 TByte file system (/home/backup)

Previous Report

• Bug comment from 2019-08-03 says it was fixed,

App and Version Details

apt show duplicity

• Package: duplicity
• Version: 0.8.11.1612-1

apt show deja-dup

• Package: deja-dup
• Version: 40.7-0ubuntu1

uname -a

• Linux 5.4.0-52-generic #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

2

2 Answers

I had the same problem and I did these follow two steps to fix it:

1 - Remove the installed using apt and install again using snap as suggested here:

2 - Change the path where I save the backup (before: /home/user, now /home/user/bkp)

Hope that help you.

Best.

In my case I had .deja-dup-ignore right into ~/.chache so

rm ~/.cache/.deja-dup-ignore

did the job for me.

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