unprivileged guest service
binfmt-support.service - Enable support for additional executable binary formats fails (logically) with:
unable to open /proc/sys/fs/binfmt_misc/status for writing: Permission denied
unable to open /proc/sys/fs/binfmt_misc/register for writing: Permission denied
on the host
setfacl -m u:100000:w /proc/sys/fs/binfmt_misc/register produces
setfacl: /proc/sys/fs/binfmt_misc/register: Operation not supported
How do I get the guest the necessary write permission on the host?