Cannot start container (sysfs mount problem)

This is the problem I mention after having got the lxd snap up and running under WSL (per post here: Status of LXD on WSL2 ).

The full log is here https://gist.github.com/cerebrate/2591e15dc4e2da0d4964b7b82f9845fc , but the first error it shows is:

lxc deep-macaw 20190709051615.645 ERROR    utils - utils.c:safe_mount:1187 - Operation not permitted - Failed to mount "sysfs" onto "/var/snap/lxd/common/lxc//sys"

…and while I’ve found a couple of references to similar errors by searching, neither of them gave me much of a clue as to what the problem might be or how to correct it.

Note: This does work if I create the mount point and mount sysfs manually per the instructions in @simos’s blog post ( https://blog.simos.info/how-to-run-lxd-containers-in-wsl2/ ), but since the error persists even when using the snap and with systemd running, I’d like to chase it down a little more.