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Re: Grub-install documentation or override?

From: Jordan Uggla
Subject: Re: Grub-install documentation or override?
Date: Thu, 25 Jun 2015 09:13:11 -0700

On Thu, Jun 25, 2015 at 5:43 AM,  <address@hidden> wrote:
> I absolutely cannot get grub-install to do what I need it to do: Install to 
> the MBR on a disk image that is loop mounted with kpartx, while chrooted into 
> an ext4 filesystem on the first partition of that image. The image will be 
> used on a BIOS machine but the physical host is EFI.
> This is for a linux from scratch 7.7 build and so uses the grub version found 
> here:
> I discovered the "target" argument to override the architecture by searching 
> the web (it doesn't seem to be mentioned in any detail in the Grub manual), 
> but I can't get it to install regardless. I get some nonsensical message 
> about being unable to find 'lvm/loop0p1' although I am not using lvm in the 
> image. The image only has a single MBR partition.

It sounds like you didn't build grub with devicemapper support.

> This seems like it should be a simple thing to do and if it is I apologize, 
> but I really hate it when software tries to be clever in an effort to 'help' 
> and makes assumptions that turn a simple matter into a nightmare.
> _______________________________________________
> Help-grub mailing list
> address@hidden

Jordan Uggla (Jordan_U on

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