Hello, i'm receiving this error when trying to re-install a previous container.

"docker: Error response from daemon: Failed to create btrfs snapshot: invalid argument"

docker run
  -d
  --name='brave-frontier'
  --net='br0'
  --ip='10.10.11.89'
  --pids-limit 2048
  --privileged=true
  -e TZ="America/Los_Angeles"
  -e HOST_OS="Unraid"
  -e HOST_HOSTNAME="ISOT0"
  -e HOST_CONTAINERNAME="brave-frontier"
  -e 'TCP_PORT_5800'='5800'
  -e 'TCP_PORT_5900'='5900'
  -e 'DISPLAY_WIDTH'='1920'
  -e 'DISPLAY_HEIGHT'='1080'
  -e 'VNC_PASSWORD'=''
  -l net.unraid.docker.managed=dockerman
  -l net.unraid.docker.webui='http://[IP]:[PORT:5800]/'
  -l net.unraid.docker.icon='https://raw.githubusercontent.com/P3R-CO/unraid/master/Brave-P3R-256px.png'
  -v '/mnt/user/appdata/brave-frontier':'/config':'rw'
  -v '/mnt/user/appdata/brave-frontier/downloads':'/Downloads/':'rw'
  --shm-size=2g 'p3rco/brave:latest'


docker: Error response from daemon: Failed to create btrfs snapshot: invalid argument

Run 'docker run --help' for more information

The command failed.

The cache drive is formatted as encrypted btrfs, it's been that way for over a year. I am still using USB boot. I am using docker folders not docker img. Google searches recommend changing the format to xfs but it's odd it would have work fine and now I need to change the format?

No errors in the syslog and a btrfs scrub completed with no errors. Cache drive has 450 Gb of 500 Gb free, no smart errors and 85% life left.

Attached are diags. Thanks for the help!

isot0-diagnostics-20260705-2023.zip

Edited Sunday at 06:29 PM1 day by nerbonne

Docker troubleshooting | Unraid Docs

This page offers troubleshooting guidance specifically for Docker containers on Unraid, managed by the Unraid team. For advanced troubleshooting, in-depth technical details, or topics beyond the Unrai

To be fair, the linked guide does not cover docker directories and there is no delete button.

Edited yesterday at 07:10 AM1 day by nerbonne

It's the same with a folder; you can delete it if you stop the Docker service. Also recommend using a Docker image instead, since Docker folders can have strange issues.

26 minutes ago, JorgeB said:

It's the same with a folder; you can delete it if you stop the Docker service. Also recommend using a Docker image instead, since Docker folders can have strange issues.

Thanks. Can't remember why I was using folders over the image. I changed it to the image and pulled the containers down again. I appreciate it.