[syslinux] Booting firmware harddisk image with memdisk fails

[Miller, Shao]

That's good to know that a smaller, non-DOS image works: It means it
_can_ work.  I'd still like to know about other DOS images...  Floppies,
super-floppies, an HDD image exactly the same size as the problem image,
but with a different DOS, etc.  - Shao

-----Original Message-----
From: syslinux-bounces at zytor.com [mailto:syslinux-bounces at zytor.com] On
Behalf Of colimit at gmail.com
Sent: Monday, May 25, 2009 11:06
To: syslinux at zytor.com
Subject: Re: [syslinux] Booting firmware harddisk image with memdisk
fails

>>> Did you try to put a
>>>  regular SATA harddrive, and setting AHCI mode on/off in BIOS (I
have it
>>>  "On")? May be memdisk's hijacked INT13h has problems with accessing
SSD?
>>
>> I have an SSD and have AHCI on. I will try this evening to see if
that is the
>> problem.
>>
>> But if accessing the disk after memdisk is a problem, maybe it could
be
>> useful to disable physical disks altogether with an option in
memdisk. I
>> don't know how hard it is to do that, but it definitely would be
useful.
>
> As Peter suggests, it is not related. I tried today on a friend's T60
with
> exactly the same problem. This system has no AHCI or SSD.
>
> However I do think it is related to disk access since in the early
tests
> 2004/2005 freebsd and linux images clearly indicated problems scanning
or
> accessing the disk when using memdisk.

Hm.. I tried to boot http://gag.sourceforge.net floppy image with
memdisk, and it boots even when  booting from a USB stick!
However it is not a usual floppy with FAT, looks that since it has
only one application, it does not need any filesystem.
May be Peter can look at its bootloader and see why FreeDOS/PC-DOS
fails?

_______________________________________________
Syslinux mailing list
Submissions to Syslinux at zytor.com
Unsubscribe or set options at:
http://www.zytor.com/mailman/listinfo/syslinux
Please do not send private replies to mailing list traffic.