Re: making old drive second drive without formatting

Re: making old drive second drive without formatting


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Posted by Henry on March 25, 2002 at 22:27:35:

In Reply to: Re: making old drive second drive without formatting posted by gloria on March 25, 2002 at 11:56:22:

: : Does your BIOS recognize the full capacity of your 80 GB HDD? Did you use an "install" program? If you used an install program post again and I will give you some refs to sort out your problem.

: : Good Luck,
: : Henry

: BIOS recognizes both drives completely - everything is correct for both drives - full capacity.
: The Maxtor (old drive) was setup originally using MaxBlast. The Seagate (new drive) was setup using Seagate's install program. Both have the same copy of Windows 98SE on them. I am thinking that is the problem - do I have to delete the Windows system files off the old drive before it can be used as a slave?

: Thanks for your help,
: Gloria


My personal preference would be to partition and format my HDDs with DOS/win tools, NOT the maker's install software. HDDs are far more likely to be compatible and they can be read on any PC with the right (big enough) BIOS support.

The problem is that Maxblast probably used a drive overlay called EZ-BIOS/EZ-Drive so you have drive overlay disk addressing on the old drive, BIOS LBA addressing OR possibly Seagate drive overlay (Data Manager) addressing on the new drive and they ARE NOT compatible. You can see files on either HDD when it is master but you cannot see files on both drives at the same time because one of them is being addressed differently from when it was first "installed". If you have files on the old drive that you want you will need to make the old drive master and copy them to an intermediate medium like floppies, Zip, CD-R, network drive or ... that you can copy files to from the old drive and copy files from it to the new drive.

After you have the files you want off the old HDD (AND working on the new HDD) run the Maxtor Diagnostic utility and erase the old drive completely (may be erase function, may be called "low level format"); if the utility offers a surface scan - run it ("destructive" Write/Read scan is preferred - just destroys data while checking surface quality). After that, connect the new drive as master and the old one as slave then partition the old one (fdisk) and format it. Run scandisk, thorough surface scan IF you didn't run a Maxtor surface scan. The scanning is to prevent bad sectors from corrupting your new files. A plain partition and format won't remove the drive overlay completely - the mbr doesn't get rewritten if it exists so it is better to erase it completely and start fresh.

Some refs to explain how drive overlays work, compatibility issues and removal issues (wdc concepts apply, too):

http://www.wdc.com/support/faqs/software/ezdrive.asp#lba [FAQ 29, 30 & on]

http://www.maxtor.com/Maxtorhome.htm [Select Product Support, Desktop (ATA) Drives then Technical Procedures, Docs 24003, 24006, 24019, 24020]

http://www.seagate.com/support/kb/disc/dm71x-lba.html [Migrate from DM to LBA]

Hope this helps,
Henry





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