Date: Wed, 23 Feb 2005 16:05:34 -0300 From: Alejandro Pulver <alejandro@varnet.biz> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: Extracting boot sectors Message-ID: <20050223160534.6d3f3f8d@ale.varnet.bsd>
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Hello, I would like to know how to extract the MBR to a file, and how to restore it. Also I would like to know how to do the same with the partition boot sector and OS loaders. I think it is as follows (I remember this from somewhere): dd if=/dev/<disk/partition> of=/<file> bs=512 count=1 But I do not know: a) Is 512 the correct size for both (MBR and partition boot sectors)? b) How to extract/restore the OS loader (e.g. for WinNT/2K/XP, that is NTLDR)? c) What alternative commands are available for doing this (extact/restore)? I would also like to know more about boot sectors and OS loaders. I would appreciate some links. Thanks and Best Regards, Ale
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