UnRaid 6.9.1 -- Docker Service failed to start.

[EvilTiger]

just restarted my array as i'm swapping a lower density driver for a higher density drive. when i restarted the array now i cannot start Docker

 

I see the following in my logs

Mar 12 09:02:11 Enterprise emhttpd: shcmd (9298): /usr/local/sbin/mount_image '/mnt/user/system/docker/docker.img' /var/lib/docker 30
Mar 12 09:02:11 Enterprise kernel: BTRFS info (device loop3): using free space tree
Mar 12 09:02:11 Enterprise kernel: BTRFS info (device loop3): has skinny extents
Mar 12 09:02:11 Enterprise root: mount: /var/lib/docker: wrong fs type, bad option, bad superblock on /dev/loop3, missing codepage or helper program, or other error.
Mar 12 09:02:11 Enterprise kernel: BTRFS error (device loop3): parent transid verify failed on 22036480 wanted 325739 found 318407
Mar 12 09:02:11 Enterprise kernel: BTRFS error (device loop3): parent transid verify failed on 22036480 wanted 325739 found 318407
Mar 12 09:02:11 Enterprise kernel: BTRFS error (device loop3): failed to read chunk root
Mar 12 09:02:11 Enterprise kernel: BTRFS error (device loop3): open_ctree failed
Mar 12 09:02:11 Enterprise root: mount error
Mar 12 09:02:11 Enterprise emhttpd: shcmd (9298): exit status: 1

 

I tried performing a btrs scrub which completed without error and this still doesnt resolve the issue.

 

I assume the problem is a corrupt docker.img on in my cache pool and i will probably need to recreate my docker.img file but i would like to avoid this if i can given the work required to re-create all my docker containers and getting them all configured as before.

 

Any pointers or help would be greatly appreciated ... thank you in advance

 

enterprise-diagnostics-20210312-0916.zip

[JorgeB]

Delete and re-create the docker image.

[EvilTiger]

1 hour ago, JorgeB said:

Delete and re-create the docker image.

 

Thank you ... this helped me understand the persistence of the docker config. 

 

Note to others, if you have any custom docker networking this is not persevered. you will need to recreate your networking prior to installing the applications