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Date:      Thu, 02 Nov 2000 00:25:31 GMT
From:      "Aaron Hill" <hillaa@hotmail.com>
To:        questions@FreeBSD.org
Subject:   How to Erase/Zero a Boot Sector?
Message-ID:  <F55zjzjPWL0JcQ41gcl000038e3@hotmail.com>

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Hello,

Can someone tell me how to erase (or just zero?) the boot sector of a given 
partition. I know about DOS's fdisk /mbr which kills the master boot record. 
What I want to do is erase the boot sector of a given partition - but leave 
the rest of the partition intact.

I'd image dd can help but I don't know what to pass it for the if (input 
file) operand. Perhaps a file with 1024 zeros in it? If this would work do 
you know how best to create a file with 1024 zeros in it? :-)

FYI - I'm currently toying with getting a IBM T20 laptop to run fbsd 4.1.1 
(dual boot with Win2000). I've been through the mail list archives and seen 
the problems that exist. I'd be glad to hear about any *solutions* people 
have for getting this dual boot setup working (with Windows NT/2000). 
Setting the partition to type 131 (extfs2) and fdisk /mbr didn't help.


Thanks
Aaron Hill



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