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Re: How to troubleshoot when stuck at "GRUB loading."?

From: Anders Ingemann
Subject: Re: How to troubleshoot when stuck at "GRUB loading."?
Date: Mon, 16 Sep 2013 22:58:00 +0200

p.s.: I cross-posted this to the debian-cloud mailinglist
( 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).


On 16 September 2013 21:03, Anders Ingemann <address@hidden> wrote:
> Hello everybody
> I am developing the debian bootstrapper "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
> (
> 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:
> 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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