mitchell@cadovax.UUCP (Mitchell Lerner) (03/15/88)
I've been using SCO Xenix at my office for about 2 years and if I've
ever had to cycle the power on my machine without doing a formal shutdown
first, I never lost any data although the system would usualy have to run fsck
at least once, it would come up and there would be no data lost that
I could tell.
Under SCO 286 Xenix 2.2.1:
1.) why is it that on another installation that uses an intelligent 8 port
multiport card (Digiboard), if the power drops and there were other
users logged in over the multiport card, the system reports:
boot0: boot error-5(or 6?)
and fails to boot. This doesn't seem to happen if there are no users logged
in over the multiport card.
This caused me to have to rebuild my root partition from scratch once, but I
did figure out that if at this point, I boot from floppy, then answer no to
"do you want to reinstall" and then hit any key to reboot, the system comes up
from hard disk (after removing floppy) and goes through fsck and comes up
fine. Why is this? How does booting the image from the floppy first, allow
me to now boot from the hard disk in this situation?
Also, why does it have to fsck the /u file system if I was not running
and programs that were referencing it?
When I had to rebuild my root partition from scratch, I noticed that
it wasn't much fun and that I lost some stuff that lived there
that was used by the accounting application that lives 99% in the
/u partition... so:
2.) If I have a root partition that has some stuff in /usr/sys that I
want to save for my multiport card, and some stuff in usr/bin and
the xenix image and other stuff, and also have a /u partition that
needs to be backed up daily. How do I want to backup the root partition
periodicaly to capture the system specific stuff and back up the
/u partition daily to capture the /u/user and important data base
stuff that lives there?
I just want to be able to, if there is a disk crash or something, be able
to restore almost the entire system in a matter of minutes. And from these
backups tapes, be able to selectivly get groups of files and not get the
entire tape (get the root partition stuff and not the accounting data
that lives in /u). Or, just get the accounting stuff.
Do I want to use cpio or tar (cpio -ovcduBm or tar cv6)?
Is there a way to capture the /dev/ttyi11 -> 18 digiboard drivers
so that I won't have to reinstall that stuff from scratch?
Let me benifit from your experience.
Thanks!
--
Mitchell Lerner
UUCP: {ucbvax,ihnp4,decvax}!trwrb!cadovax!mitchell
"When I fight with my mind, my mind always wins" - Ben Hummel