Comments: Authenticated sender is <alaric+abwillms AT sdps DOT demon DOT co DOT uk>
From: "Alaric B. Williams" <alaric AT abwillms DOT demon DOT co DOT uk>
To: Mark Habersack <grendel AT hoth DOT amu DOT edu DOT pl>, alaric AT abwillms DOT demon DOT co DOT uk,
        opendos-developer AT delorie DOT com
Date: Thu, 1 May 1997 20:24:46 +0000
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Subject: Re: File Systems (was Re: Usage of directory entries
Reply-to: alaric AT abwillms DOT demon DOT co DOT uk
CC: alaric AT abwillms DOT demon DOT co DOT uk, opendos-developer AT delorie DOT com
In-reply-to: <199704300712.JAA12911@grendel.sylaba.poznan.pl>
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Message-ID: <862514477.0610299.0@abwillms.demon.co.uk>
Precedence: bulk

On 30 Apr 97 at 9:14, Mark Habersack wrote:

> > The mounting is done invisibly. Typing a: is just a change directory;
> nonono - typing 'a:' is changing the device, typing 'a:\' would be changing 
> directory.

nonononono - typing a: sets the CWD to whatever drive a:'s private CWD is,
so it's a change directory. Typing a:\ does nothing!

> > we don't have to type "a:" when a new disk is inserted, we just type 
> > DIR again, or whatever we want from the disk. There is no operation that has
> > to be taken to inform the system of disk changes because it knows, all on
> > it's own!

> At the time you execute some action related to that device, DOS re-reads 
> (mounts) it again, updating BPB, DPB and some other structures - yes, this is 
> an invisible mount.

Yup. It's all automatic. The user and programmer leave it wellalone.


ABW
--
Alaric B. Williams (alaric AT abwillms DOT demon DOT co DOT uk)

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