Marcus Furlong wrote:
It looks like you could loop mount an ubuntu cd, copy the vmlinuz/initrd/pxelinux.{0.cfg} and pxechain the netboot installer and choose the "Install in OEM mode" option, e.g.
label ubuntu kernel pxechain.com append ::ubuntu/11.10/amd64/pxelinux.0
Urk. Just use the normal ubuntu netboot d-i, e.g.
Much of a muchness, they're the same files.
No, they aren't. The netboot ramdisk includes drivers for NICs. The CD ramdisk includes drivers for SCSI/ATA. If you netboot the CD ramdisk, you won't be able to reach the udebs that contain the other drivers. Well, unless you *also* had the udebs on a local CD or HDD, but that would seem a roundabout way to perform a network install.
From syslinux 4ish you can also boot directly to iso (syslinux website is currently down, so can't check exactly which version it was).
Blech. Chainloading an ISO of non-optical media is as fugly as using tar on non-tape media.