[syslinux] [Feature-Request] syslinux in linux kernel format

[Michael Reichenbach]

Yes, chainbooting syslinux is fine enough. Just a chainloadable generic
ldlinux.sys is needed.

-mr

Kim Mik schrieb:
> Syslinux in kernel format won't be that usefull, because it needs to find the correct partition.
> But a chainloadable syslinux would be great.
> 
> A possible way that I see, with my limited knowledge of asm.
> 
> Change ldlinux.asm:
> - add a extra variable in the first 512 bytes: eg. chainload [values: 0 or 1]
> - If variable chainload=1, assume that the whole ldlinux..bin is already loaded in RAM,
>   so don't try to read the sectors of that file from the partition
> - Skip all the checks to see if ldlinux.sys (.bin) is correctly loaded from the media.
> - If chainload=0, use the current way of booting
> 
> - Compile ldlinux.asm, by default with chainload=0 (so the current form) ==> ldlinux.bin
> - Chance the byte which codes for the zero in 'chainload=0' to a one ==> chainsys.bin
> 
> The same can be done for extlinux.bin and isolinux.bin (didn't look into it, so can be wrong).
> This allows you to use syslinux/extlinux on a partition without installing syslinux/extlinux to
> the partition, so it can be chainloaded as a file by a bootloader like grub or grub4dos.
> 
> Gert Hulselmans
> 
> 
> 
> 
> ----- Original Message ----
> From: Michael Reichenbach <michael_reichenbach at freenet.de>
> To: syslinux at zytor.com
> Sent: Wednesday, 25 February, 2009 16:33:27
> Subject: [syslinux] [Feature-Request] syslinux in linux kernel format
> 
> Hi
> 
> It would be pretty useful to have syslinux in linux kernel format so it
> can be chainloaded easy and directly by other bootloaders such as grub4dos.
> 
> related topics:
> http://www.boot-land..net/forums/index.php?showtopic=7013
> http://www.boot-land.net/forums/index.php?s=&showtopic=6119&view=findpost&p=59236
> http://www.boot-land.net/forums/index.php?s=&showtopic=7077&view=findpost&p=59230
> 
> regards,
> -mr
> 
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