mount: permission denied on debian (raspbian jessie) about cgroupfs-mount HOT 4 CLOSED

from cgroupfs-mount.

Thanks for the quick respose @tianon, to be transparent, I'm not entirely sure how cgroups works, it's a requirement of AWS Greengrass, I tried bind mounting mount -t cgroup -o $sys,bind cgroup $sys, but same permission denied issue.

Still trying to work through this, thanks for the insight

from cgroupfs-mount.

Yeah, this repository (and the scripts it contains) are definitely not what you're looking for. They're for setting up cgroups on your host.

Docker provides a read-only copy of your container's cgroups at /sys/fs/cgroup by default, and if you need read-write access, you have to bind-mount them yourself via -v /sys/fs/cgroup:/sys/fs/cgroup on docker run, but beware that it's dangerous to do so.

It sounds like https://github.com/lambci/docker-lambda might also be of interest to you.

from cgroupfs-mount.

Thanks @tianon, you're right, this is unnecessary, Greengrass runs successfully in my RPi Docker image without running these scripts, which is contrary to the Greengrass dependency checker which says it fails, even though all the cgroup mounts are available in the running image on the RPi.

I appreciate your responses.

from cgroupfs-mount.