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Re: Boot from ISO image: what "root" device?

From: Mark Glassberg
Subject: Re: Boot from ISO image: what "root" device?
Date: Mon, 15 Jun 2009 09:16:31 -0400
User-agent: Mutt/1.5.18 (2008-05-17)

I'm a newbie at this.  From what little I've read and tried, however, it seems
to me that the isofrom boot prompt only works after the iso has booted.  I can
offer no guaranty but, if you have enough ram, try booting the iso image as the

Good luck,

On Mon, Jun 15, 2009 at 10:27:06AM +0200, Pinna Marco wrote:
> THE_URL:file://localhost/tmp/mutt.html
>    H�
>    I'm tryin' to boot an ubuntu live ISO image from my hd but the boot
>    process stops when it try to mount the root device...
>    this is the code i use in grub.cfg (using grub2)
>    menuentry "Ubuntu, Live ISO Image" {
>        linux    (hd0,4)/Uby/vmlinuz isofrom=(hd0,4)/Uby/Uby904.iso vga=791
>        initrd   (hd0,4)/Uby/initrd.gz
>    }
>    it looks like i have to pass the "root" option in the "linux" line but
>    i don't know what it should point to
>    (the iso image itself?)
>    :D
>    (hd0,4) is an ext3 filesystem (usually mounted as /home)
>    after booting starts it stops with the message
>    Waiting for root file system....
>    ..........
>    it says that root filesystem does not exist and then it opens a shell.
>    i extracted the "vmlinz" and "initrd.gz" files from the iso i'm tryin
>    to boot on
>    I think i'm doing somenthing wrong, but i cant find any useful
>    documentation to solve the problem by myself
>    why the manual documentation is so poor?
>    regards, Marco

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