Thursday, October 23, 2008

Hard Disk : Operating System–Specific Boot Information

Most operating systems, including DOS, and Windows 3.x/95/98/Me/NT/2000 rely on the
active primary partition when they boot from a hard disk. However, different operating
systems rely on the active primary partition in different ways.
• DOS, Windows 3.x, and Windows 95/98 must boot from an active primary partition
on the first hard disk drive.
• Windows NT/2000 can boot from a logical partition, but the Windows NT/2000 boot
program must be in the active primary partition on the first hard disk.
• OS/2 can be booted from a logical partition; however, the extended partition
containing the logical partition must be contained within the first 2 GB of the hard
disk. Additionally, the Boot Manager utility provided with OS/2 must be present on
the hard disk in order to install OS/2.

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