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Full Discussion: Hard Drives and MBR
Special Forums Hardware Hard Drives and MBR Post 302816863 by hicksd8 on Tuesday 4th of June 2013 05:28:02 PM
Old 06-04-2013
The MBR (Master Boot Record) resides on the first sector of the disk and is where control is passed to by the machine BIOS.

The MBR will be different from operating system to operating system, and each operating system will have a way of writing its own MBR.

For example, in Windows

Code:
 
fdisk /mbr

(google that for syntax) will write an MBR and on Solaris the

Code:
 
installboot

command will write an MBR.

If an MBR exists at all when the disk comes from the factory, that will just be from the manufacturing test process and probably won't be what you need for your O/S. When the O/S install routine runs it will install its MBR.
 

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LEARN ABOUT NETBSD

dk

DK(4)							   BSD Kernel Interfaces Manual 						     DK(4)

NAME

     dk -- Disk partition (wedge) driver

SYNOPSIS

     options DKWEDGE_AUTODISCOVER
     options DKWEDGE_METHOD_BSDLABEL
     options DKWEDGE_METHOD_GPT
     options DKWEDGE_METHOD_MBR

DESCRIPTION

     The dk driver provides a disk-like interface to an area of a physical disk.  Wedges may be configured manually with dkctl(8) or automatically
     by the kernel upon the attachment of the physical disk.

KERNEL OPTIONS

     DKWEDGE_AUTODISCOVER     Automatically detect and configure wedges using any available methods.

     DKWEDGE_METHOD_BSDLABEL  BSD disklabel detection method.

     DKWEDGE_METHOD_GPT       Extensible Firmware Interface Globally Unique Identifier Partition Table (GPT) detection method.

     DKWEDGE_METHOD_MBR       IBM PC-compatible Master Boot Record (MBR) partitioning detection method, with support for Extended MBRs.

FILES

     /dev/{,r}dk*  dk device special files.

SEE ALSO

     config(1), disklabel(8), dkctl(8), fdisk(8), gpt(8), MAKEDEV(8)

HISTORY

     The dk driver first appeared in NetBSD 3.0.

AUTHORS

     The dk driver was written by Jason R. Thorpe.

BSD
								   May 19, 2010 							       BSD
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