Re: Booting VSTa

From: Andrew Valencia <vandys_at_nospam.org>
Date: Tue Jan 11 1994 - 09:08:24 PST

[Dave Hudson <dave@humbug.demon.co.uk> writes:]

>want 2 or more images on a floppy. Under Linux with all of the device
>support in one 400k compressed kernel I only need one kernel image, but I
>soon run out of space doing this with VSTa since the kernel and boot servers
>are loaded below 640k.

Please remember that your boot servers should *only* be a disk driver, and
a filesystem. You can run all other drivers off the filesystem, as well as
any other filesystems. This is why I didn't add > 1M support for my boot
loader--if you're loading that much on boot, you're not taking advantage
of a microkernel's abilities.

You can demand-page executables off *any* filesystem--including bfs.

>I suspect I want to run VSTa in a somewhat atypical way since I run lots of
>differently configured systems. I'm still a little concerned that I don't
>want to create something that's completely [345]86 PC specific, and I'd hope
>that a boot fs concept would be portable to other architectures (maybe I'm
>showing my ignorance here though).

You can also kill off servers (even device drivers) which you no longer
need. The real point of a microkernel is that you can be bringing up and
shutting down various device support configurations, without having to
boot your box.

                                                Andy
Received on Tue Jan 11 09:16:10 1994

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