A.P. Lawrence

scsi adaptor htfs filesystem crash

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From - Fri Mar 10 10:48:14 2000
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From: Bob Bailin <72027.3605@CompuServe.COM>
Newsgroups: comp.unix.sco.misc
Subject: Re: *** HELP! HTFS Filesystem Crashed. ***
Date: 10 Mar 2000 15:13:09 GMT
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"Artyom V. Viklenko" <artem@mipk-kspu.kharkov.ua> writes:
> Hi, Guys!
> 
> I need help immediately!
> 
> After moving hard drive from one SCO box to another and manualy
> making entries in /dev I lost access to filesystems on that drive.
> 
> Fdisk sees correct partition table and divvy can show division table,
> but all divisions are 'NON FS' with correct per-block layout.
> 
> fsck can't recognize fs type. If I use '-F HTFS' I got
> error about bad MAGIC NUMBER.
> 
> Unfortunately I have no backup and data very important.
> At least to files from one filesystem ( compressed cpio archives
> of two filesystems at this drive ).
> 
> Does anybody have clue? Is it possible using fsdb correct this magic
> number?
> At which offset?
> 
> I make raw copy ( dd ) of divisions so I can experiment with drive.
> 
> Any suggestions are welcome.
> 

I would guess that the SCSI adapter on the new system is applying a different
drive translation (number of heads/cylinders/sectors) to the hard disk than
the old SCSI adapter.  This would allow Unix to see the fdisk table
correctly, and possibly the divvy table too, but the actual data in the
divisions would be in the wrong order to make any sense as a valid
filesystem.

Are you going from a non-Adaptec adapter to an Adaptec on the new system?

> Thanks at all!
> 
> -- 
>     Sincerely yours,
>                        Artyom V. Viklenko.
> 
> -----------------------------------------------------------------------
>   Artyom V. Viklenko  : MIPK-KSPU 21, Frunze Str. Kharkov Ukraine 61002
>  System Administrator : Phone: +38 0572 400026     Fax: +38 0572 474062
>  artem@mipk-kspu.kharkov.ua        http://www.freenet.kharkov.ua/~artem

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-- 
Bob Bailin
72027.3605@compuserve.com

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