I left out a few gotcha's.

As Art pointed out, make 2 SLTs as well as 2 backups.

Before making the SLT, I like to re-boot with "GROUP=CONFIG".  This way, I
know what group I booted from, I know that I *can* boot from that group, and
I know what group I'm putting on the SLT.

Since I once (waaaay back on MPE/iX 3.0) had to re-created the
NMCONFIG.PUB.SYS file from scratch several times, I now STORE
NMCONFIG.PUB.SYS, BULDJOB1.PUB.SYS, and BULDJOB2.PUB.SYS to a seperate tape
"just in case".

(My nightly backup jobs run BULDACCT before the backups, so all FULL and
PARTIAL backups have current BULDJOBs on them.)

And, I like to have the latest factory SLT, FOS, SUBSYS and patch tapes
handy.
---
Michael D. Hensley   | mailto:[log in to unmask]
Allegro Consultants  | http://www.allegro.com
650/369-2303