NoNameNoFace NoNumber
2002-Jun-29 06:12 UTC
[syslinux] syslinux/ioslinux direct support for bootable iso images
Hi all, Is there some way of syslinux or isolinux providing direct support for boot iso bootable images? I can use syslinux/isolinux to boot different ramdisks and floppy disks images fine on a single CD-ROM disk. But I want to use syslinux/isolinux to boot different bootable iso images from a single CDROM disk. Any ideas? Thanks in advance. New! Give your email a serious boost ... http://www.norada.com/save
H. Peter Anvin
2002-Jun-29 15:47 UTC
[syslinux] syslinux/ioslinux direct support for bootable iso images
NoNameNoFace NoNumber wrote:> Hi all, > > Is there some way of syslinux or isolinux providing direct support for boot iso bootable images? I can use syslinux/isolinux to boot different ramdisks and floppy disks images fine on a single CD-ROM disk. But I want to use syslinux/isolinux to boot different bootable iso images from a single CDROM disk. > > Any ideas? >There is no reasonable way to do this. If the .iso image uses emulation, one could extract the emulation image and invoke it... but 90% of BIOSes don't support this operation correctly (try the .img image support and you'll find out.) For no-emulation booting, you're SOL -- it would require an offset operation in the BIOS. Furthermore, most .iso images will sooner or later load a device driver and talk to the CD-ROM directly, which will break if the CD-ROM isn't the one you really expect... -hpa