Just a word of experience from the school of hard knocks - you may
need to be able to disable the settings in /etc/sysconfigtab. You can
do this using the '-c' boot option.
We had a machine with 4GB of memory, and for one reason or another,
needed to have the buffer cache very large (not the UBC, the
bufcache). So, we changed 'vfs:bufcache' in /etc/sysconfigtab.
Apparently, Digital Unix unhappy if the bufcache is > ~1GB and the
kernel would no longer boot.
I looked though all the Digital Unix documentation I could, but
eventually had to look at the DU kernel source and found that the '-c'
boot option ignores the sysconfigtab, allowing us to reboot and reset
the parameters. You can do this using "boot -fl c".
Dirk Grunwald Assoc. Prof, Univ. of Colorado at Boulder
Received on Sun Nov 23 1997 - 16:09:52 NZDT