2.7->2.8 Upgrade via CVS

[Kit Halsted <kit@kithalsted.com>]

Apologies if there are questions here that have been answered 
already, but I have done my research in the upgrade minifaq & the 
archive & I'm still left with some questions about the upgrade 
process:

How do I upgrade /var & /dev/MAKEDEV? It appears to be necessary, but 
I don't see any tips on how to do it.

Is there a way, other than doing "cvs diff -u -rOPENBSD_2_7 
-rOPENBSD_2_8", to find out what changes I need to make in /etc? 
Doing the cvs diff overflows my 1024-line scrollback buffer & doesn't 
leave any obviously useful info on the screen. I have added "daemon" 
& "staff" in the appropriate place via vipw.

Thanks,
-Kit