rdump
John Moreland
moreland at nic.cerf.net
Sat Mar 23 09:20:56 AEST 1991
Has anybody ever successfully used "rdump" or "dump.bsd" on an A/UX 2.0
system ? I'm trying to back up my root filesystem using rdump, but it looks
like rdump does not recognize Apple's A/UX filesystem types. Here's
what happens:
root# /etc/rdump 0bf 8k sluggo:/dev/rst8 /
DUMP: Date of this level 0 dump: Fri Mar 22 19:08:23 1991
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping / to /dev/rst8 on host sluggo
DUMP: bad sblock magic number
DUMP: The ENTIRE dump is aborted.
root#
where "sluggo" is a Sun4 with a tape drive called "/dev/rst8".
(and NO, the problem is not the root-to-root host permissions).
I happen to have access to the source for rdump on our Cray Y/MP running UNICOS
and I looked at the line that has the error message "bad sblock magic number"
and it looks like rdump is trying to figure out the filesystem type but cannot.
I have tried using "-T4.2" and "-T5.2" and "-TRUFS" and "-TEFS"... nothing works.
Is the problem that rdump is just a "sloppy" port and does not know about
the new Apple A/UX filesystem types ?
Is there some other way I can dump/restore my A/UX system accross the network
to my Sun ?
Also, I noticed that the "stand-alone shell" (MacPartition) does not have
the "restore" command. If I were to lose my A/UX disk (I have not), how
would I even be able to restore the dump ? I noticed that "SASH" does
have "dd", but SASH/dd running out of the MacOS partition could not
be used to restore/read a backup from over the network, right ? So,
how do I maintain my A/UX system backups over the network ? Do I have to
go buy an Apple Tape drive and hang it off of my A/UX system in order to
backup/restore my system ? (yuck) Is there some sort of minimal/RAM-resident
A/UX load that can be done for restoring whole root-filesystems (like on Suns) ?
Any help would be appreciated, "mucho"...
Thanks,
John Moreland
InterNet: moreland at sdsc.edu
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