[syslinux] [PATCH][git-pull] doc/syslinux.txt: CONFIG and LOCALBOOT

Gene Cumm gene.cumm at gmail.com
Wed Mar 2 04:13:59 PST 2011


On Tue, Mar 1, 2011 at 16:34, H. Peter Anvin <hpa at zytor.com> wrote:
> On 03/01/2011 10:01 AM, Gene Cumm wrote:
>>
>> This kind of confusion is why I decided to try my hand at editing this
>> and hopefully make it clearer and more up to date.  See
>> http://git.zytor.com/?p=users/genec/syslinux.git;a=blob;f=doc/syslinux.txt;h=b6d3ec2dd01366c59e1039bb3a3a4e7ff73fb9e7;hb=844e23ab45df8396cabdeff43763fa95206bb672
>> starting at line 244.  As you can see, the file is doc/syslinux.txt.
>>
>> -1 reports a boot failure to the BIOS.  If I recall correctly, there
>> are actually a few ways to go about doing so.  It appears INT18h is
>> used by everything first.  PXELINUX and ISOLINUX have a second fall
>> back of jumping to F000:0FF0h.  SYSLINUX will fall back to INT19h.
>>
>> 0 does not always mean boot next option.  For PXELINUX, it does.  For
>> ISOLINUX, it means boot the first floppy drive.
>>
>
> SYSLINUX uses exactly the same code as ISOLINUX (localboot.inc); it's
> only PXELINUX which is different.

HPA: Thanks!  I was planning on either testing, hunting in the code,
or asking about that.  I suspected that was the case but didn't know
for certain.

-- 
-Gene




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