I repurposed a laptop with a broken display as an Ubuntu server on my local network. I did the installation via the Ubuntu live USB wizard and opted to have it install Docker. I didn’t realize that this would install it via snap.
Why is this a problem?
Honestly, it wasn’t.
Until I attempted to mount a volume bound to a directory under
/opt/. I kept getting this error:
docker: Error response from daemon: error while creating mount source path '/cache': mkdir /cache: read-only file system.
I tried the following:
- Create the directory with my
- Give the directory
- Verified that there was enough space in the partition
Completely remove the Docker snap
sudo snap stop docker sudo snap remove docker
Then install Docker using the official installation instructions.