Errors after moving container manager: Drive btrfs failed to remove root file system

[stevenhaskell]

I was able to successfully move Container Manager to a new volume using the script. Most containers were able to run without an issue. A few of them have an error message along the lines below. Any idea how to resolve this?

container 7e851076ddc391b22a2f380c79f1baca9319337c3d4b01ae0ec5c27cf5b99653:
"driver "btrfs" failed to remove root filesystem: Failed to destroy btrfs snapshot
/volume2/@docker/btrfs/subvolumes for
27da9bf15376d3f61ae63702d5e41497aa1d49d5d9e97240115c8cea503a30c4: invalid argument

[007revad]

Do you have backups of the json or yml files for the affected containers?

I've grown to hate container manager or docker as it causes 80% of the issues people report having with syno_ap_mover.

Does the following command return anything?

ls /volume2/@docker/btrfs/subvolumes | grep  grep -E '^27da9b'

[stevenhaskell]

@007revad Yes, I do. I created manual backups and backups through your script. I ran the command and it returned the following:

grep: ^27da9b: No such file or directory
ls: cannot access '/volume2/@docker/btrfs/subvolumes': Permission denied

[007revad]

Is /volume2/@docker empty?

sudo ls /volume2/@docker/btrfs/subvolumes

[stevenhaskell]

No, it's showing a huge wall of subvolumes. I can see the one in the original error message. Some do end with "-init". Example below:

27da9bf15376d3f61ae63702d5e41497aa1d49d5d9e97240115c8cea503a30c4       
27da9bf15376d3f61ae63702d5e41497aa1d49d5d9e97240115c8cea503a30c4-init

[007revad]

You could try removing dangling docker images:

sudo docker image prune --force

or even removing dangling and unused docker images:

sudo docker image prune --all --force

Then delete the affected containers and their images, and recreate them from your backups.

[stevenhaskell]

I'll give this a shot and report back. Thanks for your help on this!

[stevenhaskell]

@007revad sorry for the delay. The command you recommended didn't work. I was able to remove it after force deleting the sub volume mentioned. Once I did, I could then delete it in container manager.
sudo rm -rf /volume2/@docker/btrfs/subvolumes/replaceWithSubVolumeName

Thank you for your help anyways!