SUMMARY, unreadable incremental dump tape

From: Christoph von Stuckrad (stucki@math.fu-berlin.de)
Date: Tue May 26 1992 - 10:24:20 CDT


Hi!

The correct answer for my unreadable dump tape seems to be:

> Return-Path: <Brian.Berliner@Central.Sun.COM>
> Date: Sun, 10 May 92 09:26:07 MDT
> To: stucki@math.fu-berlin.de
> Subject: Re: HELP PLEASE, unreadable incremental dump tape
>
> In alt.sys.sun you write:
> >AND now our last backup as of 3:00am last night
> >(done by: dump 9af <archive> <streamingtape>)
> >says if I try 'restore if <streamer>' only '. is not on
> volume'
> >and dies with core-dump !!!
>
> That message usually means that the incremental is empty.
> I.e., there were
> no files to backup for that incremental dump. Try going
> back to the last
> dump of a previous level (level 5 or level 0, perhaps).
>
> -Brian
>
Thanks for explainig !!!

A dump-tape seems to be devided into a part with
inode-information, and a second part of file-contents blocks.

Those 'files' were empty, only modes/links were changed after the
last dump of level zero.

My fault was not realizing the time difference between last full
disksave and the unreadable increment. The difference was
about three hours around midnight ! Of course no file was
changed then. (And the last version was all right to be
loaded back)
                        Thanks, Stucki

-- 
 Christoph von Stuckrad      *  *   !  talk to   ! <stucki@math.fu-berlin.de>  
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