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From: geert@ahds.UUCP (Geert W.T. Jonkheer CCS/TS)
Newsgroups: comp.os.minix
Subject: Re: Booting minix (st) from a double sided floppy drive?
Message-ID: <1968@ahds.UUCP>
Date: 22 Apr 91 07:01:43 GMT
References: <1961@ahds.UUCP> <5487@wucc.waseda.ac.jp>
Organization: Ahold NV, Zaandam, Netherlands, EEC
Lines: 25

In article <5487@wucc.waseda.ac.jp>, ytsuji@wucc.waseda.ac.jp (Y.Tsuji) writes:
> Unless my memory fails me, booting procedure depended on TOS. It is 
> TOS that reads and loads the very first sector in memory and the
> boot sector uses TOS again to read the rest of the code from the
> floppy. If there was  a way of distinquishing SS or DS, what use
> would it be? The boot disk can be double sided or single sided depending
> on how you actually compile the source code. Making use of TOS until
> the control is passed to Minix OS makes life a lot easier. I just
> cannot understand the question. I am sorry. Incidentally, my boot disk
> is double sided.

Sorry, I forgot to mention, that it is not the boot floppy thats
causing the problem, but it's the root floppy. When I started up
Minix and minix askes for the root floppy it wants the root floppy
to be single sided (no matter what). When you are mounting
this floppy as double sided (/dev/dd0) and put something on it,
data will be corrupted the next time the system is loaded 
from the root floppy. All I want to do is that minix loads
the root partion from a double sided disk or that minix 
automatically sees the differences between single or double
sided disks as TOS sees it.

Geert.