How to recover a lxd-storage volume

LXD
1

Hi,
I stored several container in a separate lxd-storage (btrfs).
The hole thing is located on a physical disk.

Today, the root-disk failed and I attached the lxd-disk to the backup-device.

I tried to restore the volumes on the new device, without success.

What I did:

lxd recover
Name of the storage pool: second
Name of the storage backend: btrfs
Source of the storage pool: /dev/sdb1

 - EXISTING: "default" (backend="btrfs", source="/var/snap/lxd/common/lxd/disks/default.img")
 - NEW: "second" (backend="btrfs", source="/dev/sdb1")

Error: Failed validation request: Failed checking volumes on pool "default": 
Failed parsing backup file 
"/var/snap/lxd/common/lxd/storage-pools/default/containers/migration.3209980035/backup.yaml": 
open /var/snap/lxd/common/lxd/storage-pools/default/containers/migration.3209980035/backup.yaml: 
no such file or directory

Any help to allocate the storage pool to the new device is highly appreciated.

Thanks in advance

hartmut

2

migration.XYZ isn’t a real container, I’d recommend just deleting that folder to avoid confusing lxd receover.

3

Thanks.
I should delete anything in the folder
/var/snap/lxd/common/lxd/storage-pools/default/containers ?

Now the »unknown volumes are found«

The following unknown volumes« have been found:
 - Container "devel" on pool "second" in project "default" (includes 1 snapshots)
 - Container "halfgarten" on pool "second" in project "default" (includes 0 snapshots)
 - Container "hb" on pool "second" in project "default" (includes 0 snapshots)  (...)

but then

failed creating instance "devel" record in project "default"

Where do I find an error-log?

4

What’s the full error for that devel instance?

5

Hi Stephane,

there were errors in mapped filesystems. After fulfilling that, the recovery was successful.
THANKS VERY VERY MUCH for releasing this awesome tool!

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