Modified Ubuntu server (10.04) image with iso-scan/filename (casper)?

Tom H tomh0665 at
Fri Aug 5 18:10:01 UTC 2011

On Fri, Aug 5, 2011 at 11:23 AM, Goh Lip <g.lip at> wrote:
> On 08/05/2011 11:07 PM, Tom H wrote:
>> On Thu, Aug 4, 2011 at 9:40 PM, Oliver Schneider<Borbarad at>
>>  wrote:
>>> as I see it, the initrd on the installation ISO of the server version
>>> (10.04.3 x64) does not include casper and the feature that allows to
>>> find the media with the ISO file from which I want to boot. The media is
>>> a flash drive with grub2, in case that matters.
>>> Does anyone know a simple method to embed just the feature that scans
>>> for the media into the initrd? I found some bits and pieces after
>>> installing casper onto a previously installed Ubuntu.
>>> I unpacked it and found a script named /init ... can I go ahead and
>>> modify that, or is there a less invasive way to change the behavior of
>>> the initialization code?
>> I don't really understand what you mean by "find the media with the
>> ISO file from which I want to boot" but, if enabling hardware
>> autoconfiguration by editing "/init" works for you, why not?
>> A canonical, standard way might be to create a Server Live CD.

> I think Oliver is talking about booting up the iso file directly from grub2
> by using loopback.

It was a confusing way of putting it but you may very well be right! :)

> I am not familiar with server version but I know that the alternate install
> cd does not come with casper either, so booting alternate cd iso will not
> work (unlike desktop install).
> Oliver, if that is what you are referring to, and if you find a way to boot
> up without casper, let us know too.

Both the alternate and server CDs use the debian-installer.

Downloading a Debian Live CD and taking a look at how it's set up might help.

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