Customize alternate install CD with UEFI?

Petter Adsen petter at
Wed Jul 20 08:51:31 UTC 2016

On Wed, 20 Jul 2016 09:52:57 +0200
Josef Wolf <jw at> wrote:

> Hello,
> I am trying to create a customized install CD based on
> ubuntu-16.04-server-amd64.iso
> According to
> I need
> the isolinux/efiboot.img file to make this iso bootable with UEFI.
> But there is no such file on the original ubuntu install CD. Where do
> I get it?

No idea about this, sorry. I found this that might be useful, booting
on 16.04 should be pretty similar to 14.04 AFAIK.

> While at it: the partitioner on ubuntu-16.04-server-amd64.iso don't
> seem to be aware of the UEFI partitions?

I'm pretty certain it is, at least it was when I recently used it to
reinstall my desktop. Maybe you need to boot the installer in 'expert'
mode to see that option?

Are you certain the machine booted the installer in UEFI mode?


"Chaos, panic and disorder. My work here is done." --Anne Onymous

More information about the ubuntu-users mailing list