[syslinux] RE: memdisk - reboot loaded image

[Puckett, Richard H.]

Murali,

Thanks for the suggestion, I'll check out the link you provided.

- Rick

-----Original Message-----
From: Murali Krishnan Ganapathy [mailto:gmurali at cs.uchicago.edu]
Sent: Wednesday, April 06, 2005 12:14 PM
To: Puckett, Richard H.
Cc: syslinux at zytor.com
Subject: Re: [syslinux] memdisk - reboot loaded image


I had the exact problem some time ago, and my solution was the "magic 
cookie" approach. In my case, I was partitioning the hard disk in Linux 
and had to reboot (because I was partitioning for Windows installation). 
I write the information "boot into DOS next" in an unused portion of the 
hard disk and reboot. SYSLINUX then boots my com32 program, which reads 
this information off the hard disk and instructs SYSLINUX to boot 
directly into DOS.

This autoboot code can be got from

http://people.cs.uchicago.edu/~gmurali/gui/downloads.html

- Murali


H. Peter Anvin wrote:

> Puckett, Richard H. wrote:
> 
>> I was looking for a way for the user to enter some configuration
>> information, re-partition (and reboot), and continue with the 
>> installation.
>>
> 
> The way to do this is repartition the disks, and then write to a sector 
> on the hard disk a "magic cookie" that you can then use for a different 
> boot selection.  Unfortunately DOS *has* to be rebooted, so there is no 
> way to do that without.
> 
> Linux would be a better choice, really, as you have already surmised.
> 
>     -hpa
>