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SCO OpenServer Release 5 Errors : Sdisk: Unrecoverable error reading SCSI disk

Posted on 2008-10-12
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Last Modified: 2016-10-27
Hi,
I have a customer who has brought me an old Pentium computer with SCO Openserver release 5 on it, I do not know much about this but they have stated that it has all there invoices and business files on there.

Errors:

Sdsk Unrecoverable error reading SCSI disk 0 dev 1/42 (ha=0 id=0 lun=0) Block=1489780
Medium error.

The drive is very noisy clicking and creaking and sounds to me like the drive is dying / dead.

It seems that that block is constantly being errored out as well as block 276 on the screen.

From what I gather its a unix distro so will have a unix file system within this.

So as such im asking for some guidance as to how to best approach this. could I set up a linux machine and add it as a second drive to try and recover files or is there free software i can use to look at the files.

Im going to try using acronis to get a backup image of the hard drive, however I know that its probably it wont work but its worth a shot.

What do you advise?

Any questions please ask.

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Question by:Aegil
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mikelfritz earned 500 total points
ID: 22698867
It seems there is very little support for HTFS filesystems on Linux:
http://aplawrence.com/Bofcusm/2450.html

Best bet may be to download the SCO boot CD (or you may have it - and it needs to support the SCSI controller) and then use the "tools" boot option:
http://aplawrence.com/SCOFAQ/FAQ_scotec1install_script.html

You would most likely be able to access the disk to a degree (anytime you hit a bad spot, take a coffee break, it'll be a while before it stops screaming at you).  Since you are booted from CD you are limited on the choices to get the data off, tape would be the best I suppose, but the CD must also see the tape and configure it.  

You may get stuck with actually loading an OS to a new disk and then setting the bad disk to a different ID (like 2) then doing a "mkdev hd" to add it to the kernel and then a "divvy" to give the slices names.  Once named they can be mounted with "mount /dev/mount_name /mnt" or similar.  At that point you have network potions to copy the data off.  

A CD image can be downloaded here:
http://www.caldera.com/support/update/download/osr507list.html
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Expert Comment

by:mikelfritz
ID: 22698876
That was supposed to be "options" but I guess "potions" is just as meaningful.
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Author Comment

by:Aegil
ID: 22698980
Thanks for that,
im downloading the iso at the moment.
Once its downloaded I will give it a try.
Im not 100% sure what it is i will find on it to recover though to be honest. Supposedly it had some invoicing software on it, however the machine is 9, nearly 10 years old and they dont seem to know much about it really.

It does however have a tape drive in it.
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by:mikelfritz
ID: 22715625
Any progress?  

The data could be anything,  ranges from MAS90 to proprietary, who knows(?).  
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Author Closing Comment

by:Aegil
ID: 31505436
Hey, thanks for your help
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