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From: sundar@mit-hermes.ai.mit.edu.AI.MIT.EDU (Sundar Narasimhan)
Newsgroups: comp.unix.wizards,comp.unix.questions
Subject: dump/restore in 4.3 BSD Unix + NFS
Message-ID: <2927@mit-hermes.ai.mit.edu.AI.MIT.EDU>
Date: 16 Feb 88 03:29:49 GMT
Distribution: na
Organization: MIT AI Lab, Cambridge, MA
Lines: 22
Keywords: dump, restore, tapes, 4.3

Hi:
We converted to 4.3 a while back with a tape that was originally from 
UW (4.3 BSD Unix + NFS). Our machine is a VAX 11/750 with two CDC 9772 disks.

A few days ago, one of our filesystems suffered minor damage and we tried
restoring it from our back up tapes. Lo and behold, we then discovered that
our dump / restore combination really doesn't work. 

When we try restore r or restore x, we get a lot of "resync restore: skipped
num blocks" repeatedly and the restore aborts with ". not found on tape?"

If we try restore -i and then a "add ." the program complains about 
the same corrupted directory and aborts (i.e. it doesn't add all the 
sub directories correctly to be extracted).

We poked around a bit, but none of the dump/restore combinations we have 
tried thus far seem to work. Now, has anyone else had this problem? What's 
the needed fix? 

-Sundar

please reply to: sundar@wheaties.ai.mit.edu, sundar@hermes.ai.mit.edu