Master Boot Record Editing Post: 302631521

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Special Forums Windows & DOS: Issues & Discussions Master Boot Record Editing Post 302631521 by touvlo2000 on Friday 27th of April 2012 11:44:35 AM

04-27-2012

Registered User

Master Boot Record Editing

Hello everyone,

I'm having some difficulty trying to convert a MBR file with hex codes into a "translated" version, where the output explains the contents of the file. For example, a table of primary partitions that I want to translate into plain english:

Code:

--- MBR: ---

Partition 1 - 80 01 01 00 83 FE 3F 01 3F 00 00 00 43 7D 00 00
Partition 2 - 00 00 01 02 83 FE 3F 0D 82 7D 00 00 0C F1 02 00
Partition 3 - 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Partition 4 - 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00



--- Translation: ---

partition 1: ID=0x83, active, starthead 1, startsector 63, 32067 sectors;
partition 2: ID=0x83, starthead 0, startsector 32130, 192780 sectors, code offset 0x48

According to a webpage I found, it can be done by using the following commands:

Code:

a) $dd if=/dev/YOUR_DATA_STORAGE_DEVICE of=DESTINATION_FILE bs=512 count=1

b) $file YOUR_EXTRACTED_MBRE

The only problem is that I'm looking for a way to do this in Windows through a text-editor of some sorts. I have a .txt file with the hex values as plain text (80 01 01 00 83 FE 3F 01 3F 00 00 00 43 7D 00 00 etc...). Any assistance would be appreciated. Thanks!

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LEARN ABOUT NETBSD

mbrlabel

MBRLABEL(8)						    BSD System Manager's Manual 					       MBRLABEL(8)

NAME

     mbrlabel -- update disk label from MBR label(s)

SYNOPSIS

     mbrlabel [-fqrw] [-s sector] device

DESCRIPTION

     mbrlabel is used to update a NetBSD disk label from the Master Boot Record (MBR) label(s) found on disks that were previously used on
     DOS/Windows systems (or other MBR using systems).

     mbrlabel scans the MBR contained in the very first block of the disk (or the block specified through the -s flag), then walks through every
     extended partition found and generates additional partition entries for the disk from the MBRs found in those extended partitions.

     Each MBR partition which does not have an equivalent partition in the disk label (equivalent in having the same size and offset) is added to
     the first free partition slot in the disk label.  A free partition slot is defined as one with an fstype of 'unused' and a size of zero
     ('0').  If there are not enough free slots in the disk label, a warning will be issued.

     The raw partition (typically partition c, but d on i386 and some other platforms) is left alone during this process.

     By default, the proposed changed disk label will be displayed and no disk label update will occur.

     Available options:

     -f 	Force an update, even if there has been no change.

     -q 	Performs operations in a quiet fashion.

     -r 	In conjunction with -w, also update the on-disk label.

     -s sector	Specifies the logical sector number that has to be read from the disk in order to find the MBR.  Useful if the disk has remapping
		drivers on it and the MBR is located in a non-standard place.  Defaults to 0.

     -w 	Update the in-core label if it has been changed.  See also -r.

SEE ALSO

     disklabel(8), dkctl(8), fdisk(8), mbr(8)

HISTORY

     The mbrlabel command appeared in NetBSD 1.4.

BSD
								   April 5, 2010							       BSD