[syslinux] Question of syslinux chainloading

[Adan Calderon]

Lu Wei,

What Hard drive are you also trying to boot?  The first and only fixed
drive inside a computer?
If so would the line to boot a local HD not be:

LABEL LOCAL
MENU LABEL Local operating system in harddrive (if available)
kernel chain.c32
append hd0


-Adan

On Thu, Apr 4, 2019 at 8:56 AM Adan Calderon <adancalderon at gmail.com> wrote:
>
> Lu Wei,
>
> For the DOS portion make sure you have a working FAT-32 DOS Bootable
> Drive first.  Back up it's boot sector into a file. This file will
> probably be 512 Bytes and if you were to open it with a Hex editor it
> would start with ".X.MSWIN4.1" and end with "SYS~..WINBOOT SYS..U"
> This would of course be looking at the ASCII view.  Assuming you put
> the file in the DOS directory and that your file is named PBR.BS
>
> Your entry would look something like this
>
> LABEL MSDOS710
> MENU LABEL Boot MS-DOS 7.10 from USB Partition
> COM32 chain.c32
> APPEND fs file=/DOS/PBR.BS nosect
>
> After you backed up the boot record into the file you can proceed to
> install syslinux on the drive.
>
> -Adan
>
> On Thu, Apr 4, 2019 at 8:43 AM Lu Wei 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
> >
> > 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
> >
> > label dosimg
> > menu label MS-^DOS 7.1 super boot disk image
> > kernel memdisk
> > append initrd=/dos/MSDOS.IMG floppy
> >
> > label hdt
> > menu label Hardware ^Info
> > com32 hdt.c32
> >
> > label reboot
> > menu label Reboot
> > com32 reboot.c32
> >
> > label poweroff
> > menu label Power off
> > com32 poweroff.c32
> > ------------------------------------------------------------------------------------------------
> > As I have commented, chainload hd1 and msdos7 do not succeed, while
> > other items are good. What could be the cause?
> >
> > --
> > Regards,
> > Lu Wei
> > _______________________________________________
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>
>
>
> --
> http://www.adancalderon.net



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