[syslinux] Question of syslinux chainloading

Adan Calderon adancalderon at gmail.com
Fri Apr 5 09:52:50 PDT 2019


What does the boot.ini file look for your hard drive?  What does it
look like when you use it from the USB drive?

-Adan

On Thu, Apr 4, 2019 at 11:31 PM Ady Ady via Syslinux
<syslinux at syslinux.org> wrote:
>
>
> > Greetings,
> > I encounter a problem that should be basic, but I can't get a clue. I
> > have 8G USB disk formatted as FAT32. I run (syslinux -i -s -r -m H:)
> > to make it bootable, and write syslinux.cfg according to the
> > documents, but it will not boot some items.
> >
> > Syslinux is 6.03, bios files used. The whole syslinux.cfg file:
> > ------------------------------------------------------------------------------------------------
> > path /syslinux
> > UI menu.c32
> > prompt 1
> > timeout 250
> >
> > menu title Multi-purpose Boot Disk
> >
> > #This item fails
> > label normal
> > menu default
> > menu label Boot from ^hard disk
> > com32 chain.c32 hd1
>
>
> From the Syslinux boot menu, press [Esc] in order to get to the boot prompt. At
> the boot prompt, type in:
>
> normal
>
> and press [Enter].
>
> Is there any (error) message then? Where/how exactly this fails? What exactly
> happens after the message(s)?
>
> Test #2: if you unplug the USB and reboot the system, can you successfully boot
> directly to the HDD's OS?
>
> Test #3: Add an entry to your syslinux.cfg:
>
> label hd1_1
> com32 chain.c32
> # Boot to first partition of ...
> # There is a space character before the partition number.
> append hd1 1
>
>
> >
> > label loadhd
> > menu label Boot from local ^NTLDR
> > com32 chain.c32 ntldr=/ntldr
> >
> > #This item fails
> > label dos
> > menu label MS-^DOS 7.1
> > com32 chain.c32 msdos7=io.sys
>
>
> Where exactly the files needed to boot MSDOS 7.1 are located?
>
> Do you have the module file "ls.c32" in the USB? If you have it, you could:
>
> 1_ From the Syslinux boot menu, press [Esc] in order to get to the boot prompt.
>
> 2_ At the boot prompt, type in "ls.c32" and press [Enter].
>
> The result should list the files that are included in the current working
> directory. Are the files needed to boot MSDOS 7.1 listed?
>
> Regards,
> Ady.
>
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-- 
http://www.adancalderon.net


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