Re: Copy with Grub

[Thierry Laronde]

On Fri, Jun 22, 2001 at 04:23:39AM +0900, OKUJI Yoshinori wrote:
> From: "Dotlacil Jaroslav" <address@hidden>
> Subject: Copy with Grub
> Date: Thu, 21 Jun 2001 09:14:55 +0100 (MET)
> 
> > I've this question: Could I copy any files from protected partition 
> > (WindowsNT or Linux)  to dos partition with grub ?
> 
> No, GRUB's support for filesystems is all read-only. But that sounds
> like you seek for a house of cards. If you allow anyone to boot DOS,
> he/she can fundamentally do anything he/she wants to do, even for NT
> and Linux. So if students don't have to use DOS, you can protect the
> machines, by requiring a password to boot DOS.

Since GRUB allows to retrieve a menu from the network, you can make
something powerful : only propose, via the network, for, say, all the
boxes in a classroom, a menu with the sole OS that students are allowed to
boot at this very moment. DHCP on a server. A cron job or an intervention
"by hand" to edit the right menu.lst for the right hour. GRUB installed
everywhere only retrieving its menu via the network --- nothing to
change on the client side ; all is defined on the server one.
-- 
Thierry Laronde <address@hidden>
Site Debian Francophone (aka SDF) : http://www.debian-france.org/