[CentOS] mount points @install time

Tue Oct 9 16:24:06 UTC 2018
James Pearson <james-p at moving-picture.com>

peter.winterflood wrote:
> there was a time (sunos 1990's for example) where mounting /usr on a
> separate partition was normal.
> this might have been because disks at the time were too small to install
> the whole operating system on one, so usr could be located on another
> partition.
> this is also why we sometimes have a /usr/sbin and /sbin for example. so
> theres the binaries needed for start up in /sbin, which would mount first.
> anyway i digress for reasons of providing some background.

To further digress, it also meant /usr could be mounted (read-only) and 
shared between multiple clients over NFS ... thus saving precious hard 
disk space ... (those were the days!)

James Pearson