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Pastimes : Dream Machine ( Build your own PC )

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To: Zeuspaul who wrote (923)	5/31/1998 11:40:00 PM
From: LTBH	Read Replies (1) of 14778

Well lets slow down and define some things first. Floppies, CD ROMs etc are physical devices usually with a single letter designation. Most BIOSs allow you to define the letter designation and characteristics of these devices. IE: A Drive; 1.44MB; x". These are then the given characteristics for this drive. Most BIOSs also let you position the bootable occurrence of this device in the string (sequentual series of devices). P II & III are BIOS functions. What may or may not occur if one attempts to force these in OS to a value contrary to BIOS, I'm not sure. Next there are hard drive letters and hard drive partitions and hard drive bootable partitions. Normally changing the occurrence of C Drive in the BIOS string, simply repositions its occurrence. The partition that was C prior is still partition C and the data that was on C is still on C. Adding or removing a second HD to your system will change the partition designation for all partitions AFTER C. I also assume that you have C as your primary active partition. However your primary active partition is still C Drive. You could have A Drive bootable first in BIOS of course. SCSI controllers/drivers can do some interest things like spanning drives etc (makes one partition of all or two parts of two HDs. However getting into the vagaries of unique SCSI functions is beyond what I was attempting to communicate. Also care must be taken when adding a second HD that has an active bootable partition. Conflicts may occur with your "real" active boot partition. I am not sure how dual boots circumvent the two boot problem. Also I was trying to convey in my prior message that I am NOT an NT person and NT questions need to be addressed by another. I do believe that in a dual boot machine, your active partitions retain their partition/drive letter designation but the non selected boot is masked in some manner. (who can shed some informed light on this?) Networm

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