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

From: Andrei Borzenkov
Subject: Re: Live-ISO's over PXE+HTTP using loopback
Date: Mon, 16 Feb 2015 06:29:33 +0300

В Sun, 15 Feb 2015 21:37:13 +0200
Beeblebrox <address@hidden> 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,"
>   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.

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