Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!ames!ucsd!nprdc!malloy
From: malloy@nprdc.arpa (Sean Malloy)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Help! Accidental Erasure of Hard Disk
Message-ID: <1451@skinner.nprdc.arpa>
Date: 9 Feb 89 22:17:24 GMT
References: <11654@reed.UUCP> <338@rna.UUCP>
Reply-To: malloy@nprdc.arpa (Sean Malloy)
Organization: Navy Personnel R&D Center, San Diego
Lines: 41

In article <338@rna.UUCP> marc@rna.UUCP (Marc Johnson) writes:
>>How does one format a second disk?  Trying to format it as drive e did not
>>work.  Please send e-mail to inform me of what to do.  Thanks in advance.

> . . . Then use FINIT (or equivalent) to do a low-level format of the 2nd
>drive (should be known as D: unless you have more than 1 logical drive on
>your first disk),  .  .  .

Not true. I added a disk to my system since the last weekend, and it
doesn't work in that order -- the second physical drive is _always_ 'D:'. 

I have a Perstor PS180, and had a 20Mb disk formatted to 38Mb and
split into two 19Mb partitions. I was adding a 40Mb disk to be
formatted to 78Mb, split into three partitions. I expected the drive
assignments to be:

	C:  first logical drive on drive unit 0
	D:  second logical drive on drive unit 0
	E:  third logical drive on drive unit 0
	F:  first logical drive on drive unit 1
	G:  second logical drive on drive unit 1

What I got was:

	C:  first logical drive on drive unit 0
	D:  first logical drive on drive unit 1
	E:  second logical drive on drive unit 0
	F:  third logical drive on drive unit 0
	G:  second logical drive on drive unit 1

Actually, I originally had the 20Mb disk as unit 0, so the disks were
assigned drives as [Unit 0: C:, E:] and [Unit 1: D:, F:, G:], but it
still works the same way. DOS assigns drive letters to the physical
drives _first_, then assigns drive numbers to any logical drives in
extended partitions.


	Sean Malloy
	Navy Personnel Research & Development Center
	San Diego, CA 92152-6800
	malloy@nprdc.arpa