SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Pastimes : Dream Machine ( Build your own PC ) -- Ignore unavailable to you. Want to Upgrade?


To: Spots who wrote (934)5/31/1998 6:57:00 PM
From: Zeuspaul  Read Replies (2) | Respond to of 14778
 
Drive Letter assignments

I am not ready to give up yet. Perhaps NT is different.

Two more cases relating to DOS/Win95

I have a CDROM drive on my computer. It boots as the D: drive in the original configuration. If I plug an external SCSI MO drive into the SCSI port and boot the MO drive becomes D: and the CDROM drops to E:.

If I turn the power off on the MO drive and boot again the CDROM moves up to D:. Sometimes I leave the MO drive off and this causes my CDROM drive to flip flop drive assignments. To work around this in Win95 I assign the CDROM to E: and it stays there regardless of the presence of the MO drive. The drive letter assignment is not available for hard disks in Win95 as it is in NT as noted in a previous post.

Point Two

from the Mylex users guide for their RAID controller.

CD-ROM Boot Disable or Enable

The default for this option is for the CD-ROM boot to be disabled (e.g., the system will boot from a hard drive. If a bootable CD is installed in the CD-ROM drive, the system can boot from the CD if this option is set to enable.

If the CD-ROM boot option is enabled, the CD-ROM will take priority over the disk drives. For example, under MS-DOS, the disk drive that is normally Drive C: will become Drive D. All subsequent drive IDs will similarly be moved down.


Spots, I am still not clear on how you tried to boot the cloned copy of NT.

If that doesn't happen when you choose the boot device (which is
entirely independent), then you can't just copy NT and boot it. Or at least I have never been successful at doing so.


Was NT on a second hard drive and did you then tell the BIOS to look for the second hard disk first? I checked all of my work and home machines and choosing the priority of IDE drives is not an option on any of them. The newest machine is a PII Micron ( 9 months old +/-). This machine came closest as it had options to select between SCSI and IDE but not to select between IDE and IDE. For DOS and Win95 I still believe if I were tell the BIOS to look for the SCSI drive first AND it had an OS it would become the C: drive.

The Partition Magic users guide lumps DOS Win95 NT and OS/2 together when they describe drive letter assignments.

Perhaps NT looks at position on the controller to determine C: drive assignment vs first found as my understanding is for DOS.

Zeuspaul