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List:       grub-help
Subject:    Re: How to troubleshoot when stuck at "GRUB loading."?
From:       Anders Ingemann <anders () ingemann ! de>
Date:       2013-09-16 20:58:00
Message-ID: CAMcOGXFh3rzMBT9e2NT2i4E1ZQsFEPLcbD0KGY3Oi-u8=VvN2g () mail ! gmail ! com
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p.s.: I cross-posted this to the debian-cloud mailinglist
(http://lists.debian.org/debian-cloud/2013/09/msg00022.html). I will
cross-post any parts/answers that may be helpful to solving the
problem (and for posterity's sake, if anyone has a similar problem and
finds this).

Anders


On 16 September 2013 21:03, Anders Ingemann <anders@ingemann.de> wrote:
> Hello everybody
>
> I am developing the debian bootstrapper "build-debian-cloud"
> (https://github.com/andsens/build-debian-cloud) and am having some
> trouble getting grub to boot my debian installation.
> Since I bootstrap from a host system (with chroot etc.) I had to use
> some workarounds to get grub installed onto a loopback device
> (http://ebroder.net/2009/08/04/installing-grub-onto-a-disk-image/).
>
> The setup consists of a vdi image partitioned with GPT into boot,
> root, swap (in that order).
> I am unable to get past the "GRUB loading." message when booting the
> image in VirtualBox.
>
> I have a hard time figuring out what is wrong with the setup,
> especially because the scenario is a bit off the beaten path (mounting
> vdi as an network block device, bootstrapping, using dmsetup to fake a
> real hdd etc.). So the usual "just run BootRepair" or "reinstall grub"
> won't really help to create a stable bootstrapping process.
> I have run Ubuntus Boot Repair system to check if anything was wrong,
> but I can't seem to find anything. The output is here:
> http://paste.ubuntu.com/6115737/
>
> The setup can be fully reproduced by cloning my repo and running
> `./build-debian-cloud manifests/virtualbox.manifest.json` (only tested
> on debian wheezy).
> Simply create a new virtual machine in VBox, attach the resulting
> image and boot it.
>
> I would appreciate any help you can offer


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