Syslinux - Dec 2005 - Problems with multiboot DVD and isolinux > 3.07

Hi,

some time ago I tried to boot an isolinux boot loader from another one 
to be able to boot e.g. a Knoppix CD with its original boot loader and 
menus from a "main" isolinux on a multiboot DVD.

This works for isolinux <= 3.07 now!

However, newer isolinux boot loaders have some problems and the isolinux 
(e.g. of the Knoppix CD) loaded from the multiboot DVD's main isolinux 
(> 3.07) freezes for some reason.

As an example I want to tell you how I integrated Knoppix to my 
multiboot DVD:
1. I "installed" isolinux (3.07) into dvd_root/boot/isolinux with
config
and menus (refered to as "main isolinux")
2. I copied the /KNOPPIX directory from the Knoppix CD to dvd_root/ and
the /boot/isolinux directory from the Knoppix CD to
dvd_root/boot/knoppixo (this boot loader will be refered to as 
"secondary isolinux")
3. I changed the config search dir of
dvd_root/boot/knoppixo/isolinux.bin to its new directory
4. I created a 2KB file called dvd_root/boot/bootsec/knoppixo.bin (which 
is loaded from the main isolinux when selecting Knoppix)
5. I created the ISO9660 image
6. I wrote the boot info table to /boot/knoppixo/isolinux.bin (in the 
ISO9660 image!) and copied the first 2KB of /boot/knoppixo/isolinux.bin 
to /boot/bootsec/knoppixo.bin (in the ISO9660 image!) using a 
home-brewed tool

As already mentioned, everything works for isolinux <= 3.07. After some 
unsuccesful DVDs using a newer isolinux version, I used qemu to test 
the DVD before burning it. Using isolinux 3.08 as main isolinux only 
some secondary isolinux boot loaders freeze, with 3.09 all secondary 
isolinux loaders freeze and with newer versions qemu crashes totally.

If you are interested in the problem (and my tool), please let me know.

Cheers,
Christian

El Domingo, 4 de Diciembre de 2005 08:59, Christian Schneider
escribi?:
> Hi,
>
> some time ago I tried to boot an isolinux boot loader from another one
> to be able to boot e.g. a Knoppix CD with its original boot loader and
> menus from a "main" isolinux on a multiboot DVD.
>
> This works for isolinux <= 3.07 now!
>
> However, newer isolinux boot loaders have some problems and the isolinux
> (e.g. of the Knoppix CD) loaded from the multiboot DVD's main isolinux
> (> 3.07) freezes for some reason.
>
> As an example I want to tell you how I integrated Knoppix to my
> multiboot DVD:
> 1. I "installed" isolinux (3.07) into dvd_root/boot/isolinux with
config
> and menus (refered to as "main isolinux")
> 2. I copied the /KNOPPIX directory from the Knoppix CD to dvd_root/ and
> the /boot/isolinux directory from the Knoppix CD to
> dvd_root/boot/knoppixo (this boot loader will be refered to as
> "secondary isolinux")
> 3. I changed the config search dir of
> dvd_root/boot/knoppixo/isolinux.bin to its new directory
> 4. I created a 2KB file called dvd_root/boot/bootsec/knoppixo.bin (which
> is loaded from the main isolinux when selecting Knoppix)
> 5. I created the ISO9660 image
> 6. I wrote the boot info table to /boot/knoppixo/isolinux.bin (in the
> ISO9660 image!) and copied the first 2KB of /boot/knoppixo/isolinux.bin
> to /boot/bootsec/knoppixo.bin (in the ISO9660 image!) using a
> home-brewed tool
>
> As already mentioned, everything works for isolinux <= 3.07. After some
> unsuccesful DVDs using a newer isolinux version, I used qemu to test
> the DVD before burning it. Using isolinux 3.08 as main isolinux only
> some secondary isolinux boot loaders freeze, with 3.09 all secondary
> isolinux loaders freeze and with newer versions qemu crashes totally.
>
> If you are interested in the problem (and my tool), please let me know.
I'm intrested in your tool, I'm using cdfs driver for 2.6.X to extract
2kb
boot sectors, but cause I was trying with newer versions of syslinux, I was 
not able to chain, as I said in an older post.
But I'm not a syslinux hacker to know why doesn't
:)
-- 
Gustavo Guillermo P?rez
Compunauta uLinux
www.compunauta.com

Christian Schneider wrote:
> Hi,
> 
> some time ago I tried to boot an isolinux boot loader from another one 
> to be able to boot e.g. a Knoppix CD with its original boot loader and 
> menus from a "main" isolinux on a multiboot DVD.
> 
> This works for isolinux <= 3.07 now!
> 
> However, newer isolinux boot loaders have some problems and the isolinux 
> (e.g. of the Knoppix CD) loaded from the multiboot DVD's main isolinux 
> (> 3.07) freezes for some reason.
> 
BIOS details please...

	-hpa

Hi,

sorry for my late reply, but I had an hard disk problem...

Am Dienstag, 6. Dezember 2005 18:51 schrieb H. Peter
Anvin:
> BIOS details please...
My PC:
    Vendor: "Award Software, Inc."
    Version: "ASUS P4PE ACPI BIOS Revision 1005"
    Date: "05/01/2003"
    Features: 000000007fcbde80 00000007
      PCI supported
      PnP supported
      APM supported
      BIOS flashable
      BIOS shadowing allowed
      ESCD supported
      CD boot supported
      Selectable boot supported
      BIOS ROM socketed
      EDD spec supported
      ACPI supported
      USB Legacy supported
      AGP supported

qemu (from the man page):
    "QEMU uses the PC BIOS from the Bochs project [...]."
> 	-hpa
Cheers,
Christian

Hi!

Am Sonntag, 11. Dezember 2005 18:38 schrieb Gustavo Guillermo
P?rez:
> Well, yes!
> I used to extract with cdfs is just a driver, that allows mounting
> track structure as separated isos, works with bootable CDs, VCDs and
> Audio CDs, on my experiment, I was stored the bootsector reported by
> cdfs onto main isolinux folder, but chaining it, doesn't work, may be
> cause the info table.
Ok, you extracted the boot sector of an isolinux CD and tried to boot it 
from an isolinux on another CD? Is that correct?

Cheers,
Christian