On Sat, Oct 31, 2009 at 06:01:56PM +0100, Ron wrote:
> Hi,
>
> I was playing around with Grub2 (latest svn version) and its loopback
> feature and had some problems to boot an ISO. The ISO file is the 32Bit
> version of Ubuntu 9.10 which is located on a 8GB USB flash drive with
> one FAT32 partition. I've tried to boot it with the following menu
> entry:
>
> menuentry "Ubuntu" {
> set isofile="/boot/isos/ubuntu-9.10-desktop-i386.iso"
>
> loopback loop $isofile
> linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile
> quiet splash noprompt --
> initrd (loop)/casper/initrd.lz
> }
>
> This entry fails silently and when the commands were executed one by one
> the linux command shows the error message "error: invalid magic number".
This error means vmlinuz wasn't read correctly.
This could be either a problem in loopback/iso9660 or a problem in the
partition that contains ubuntu-9.10-desktop-i386.iso.
Can you figure out which applies? For example, if you put a physical CD
with ubuntu-9.10-desktop-i386.iso in the drive and access it from
GRUB (via ata.mod), are you able to load Linux this way?
--
Robert Millan
The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
how) you may access your data; but nobody's threatening your freedom: we
still allow you to remove your data and not access it at all."
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