Re: Live-ISO's over PXE+HTTP using loopback

[Andrei Borzenkov <arvidjaar@gmail.com>]

В Sun, 15 Feb 2015 21:37:13 +0200
Beeblebrox <zaphod@berentweb.com> пишет:

> Hi.
> I'm trying to boot several live ISO's using my PXE-boot server and Grub loopback. ISO's are fetched by Grub from an HTTP server on the same host.
> * I can boot the kernels of all live ISO's through PXE+HTTP transfer.
> * Boot process fails at mount-root stage, where rootfs will obviously be mounted from the ISO.  Error message is usually similar "could not find the ISO" or "unable to find medium containing a live file system".
> * A sample menu entry I'm using (thanks to previous answers from this list):
>   menuentry "Debian-testing-i386-lxde.iso"" --class gnu-linux --class gnu --class os {
>   set root="http,192.168.2.100"
>   set isofile="debian-testing-i386-lxde.iso"
>   loopback loop0 ($root)/iso/$isofile
>   linux (loop0)/install.386/vmlinuz
>   initrd (loop0)/install.386/initrd.gz
> 
> As the first step of solving this problem: Is ISO modification the only choice, or is it possible to boot a normal ISO by passing the correct parameters to grub.cfg? I think the problem could be that ramdisk fails to be created when PXE is involved.
> 

You need to tell your kernel/initrd where to find ISO and it should be
able to fetch data from it via HTTP.