I always wondered why /usr was not abandoned in favor of root
> Why don’t you move all /usr contents to / and forget about /usr?
> Because this introduces a lot of new toplevel directories, which all have to be mount points then to be shared across other hosts.
> Ok, but what about a root filesystem on the network and mounting local filesystems only?
> Then you would share the toplevel directory hierarchy among all hosts. Hosts would need to mount /etc and /var for host-only versions.
So it is about network boot. Sad. There is nothing "usr" about /usr, it is system installed packages - /sys or /System. And /usr is for "/usr/dmr" which is /home. At least no more /usr/local.
