Shutting down a Sun System with a Shell Script

[Guy Harris]

>Yes, I didn't like the looks of this when I was installing 4.0. I mean,
>what happens if my /usr partition gets trashed? Install from the tapes and
>have to fix all the bugs and security holes again (1/2 :-). No thanks.

Why not just bring up UNIX on the mini-root (following the installation
steps up to the point at which you boot the mini-root) and use "newfs" and
"restore" from the mini-root to restore "/usr" from dump tapes?  As I
remember, they're both on the mini-root. 

I thought that (modulo "mkfs" vs.  "newfs" and "restor" vs.  "restore")
was Standard Operating Procedure all the way back to 4.1BSD (or whatever
BSD release first introduced the mini-root).  V7 had stand-alone versions
of "mkfs" and "restor" that could be used for much the same purpose - the
mini-root just obviated the need for quite so many stand-alone
utilities....

[[ If /usr is on its own partition, you don't even have to mess with the
"mini-root", just boot single user.  In order to do this, however, you
need to have made a dump of your /usr partition in the recent past.  But
you shoud be doing that periodically anyway.  --wnl ]]