It is important to understand how to create the ARC naming path necessary for correctly identifying the proper partition. An ARC path takes the following form:

type(x)disk(y)rdisk(z)partition(a)path   or
multi(x)disk(y)rdisk(z)partition(a)path


Example:

[boot loader]
timeout=0
default=multi(0)disk(0)rdisk(0)partition(3)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(3)\WINNT="Microsoft Windows 2000 Professional" /fastdetect


type	Identifies the disk controller. If the disk controller is SCSI, the type is scsi. Other disk controllers, such as IDE and ESDI, are referred to as type multi. On some SCSI systems, you also use multi.

x	The number of the adapter in the order it is loaded by Windows NT. For computers with only a single adapter, x is always 0. Note that all buses of a multi-bus adapter are referred to with the same value for x. For example an Adpatec 2742AT controller has two SCSI buses. They are both referred to with the same x value, since they are part of the same controller card.

y	Calculated by multiplying the bus number (on multi-bus adapters) by 32 and adding the target ID of the drive. For controllers of type multi, y is always 0.

z	The device’s logical unit number (LUN). For controllers of type multi, z is 0 for the master drive and 1 for the slave drive. For SCSI systems, this is always 0.

a	The number of the partition on the disk. To figure out the partition number you want, remember this: MS-DOS extended partitions (type 5) are not counted, nor are unused partitions (type 0). Starting with 1, count the primary partitions first, then the logical drives. If there is only one partition on the drive, this value is always 1.

path	The directory where you installed Windows NT/2000, such as \WINNT, \WINDOWS, \WINNT2K, \WINNT40, or \WINNT35.