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Re: Grub-install documentation or override?
From: |
mgreger |
Subject: |
Re: Grub-install documentation or override? |
Date: |
Thu, 25 Jun 2015 17:20:23 +0000 |
I have a 15GB image file partitioned using fdisk with a single MBR partition
and containing an ext4 file system which contains my LFS system. I used kpartx
on this to create /dev/loop0 and /dev/mapper/loop0p1. The file system in
/dev/loop0p1 is mounted on /mnt. I am chrooted into /mnt where my LFS system
resides. Grub in the LFS system was built with the following (from LFS
documentation):
./configure --prefix=/usr \
--sbindir=/sbin \
--sysconfdir=/etc \
--disable-grub-emu-usb \
--disable-efiemu \
--disable-werror
Command used:
grub-install --target=i386-pc /dev/loop0
When that failed, I also tried a number of variations on this command, all of
which also failed. I tried following examples on the net regarding creating a
device.map and populating it with (hd0) /dev/loop0
Grub seems to read the file OK, but the install still fails.
The host machine is a 64-bit install of Debian 8, although that shouldn't
matter.
If I do this on a real drive instead of a mounted image it works, but that
doesn't help me. Shouldn't it be possible to install grub to a loopback device?
Thanks in advance for any help.
---- Andrei Borzenkov <address@hidden> wrote:
> Please, describe your configuration, and provide exact command you used.
> Otherwise it is impossible to say anything.
>
> Отправлено с iPhone
>
> > 25 июня 2015 г., в 14:43, <address@hidden> <address@hidden> написал(а):
> >
> > 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: http://alpha.gnu.org/gnu/grub/grub-2.02~beta2.tar.xz
> >
> > 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.
> >
> > 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
> > https://lists.gnu.org/mailman/listinfo/help-grub
- Grub-install documentation or override?, mgreger, 2015/06/25
- Re: Grub-install documentation or override?, Jordan Uggla, 2015/06/25
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/25
- Re: Grub-install documentation or override?,
mgreger <=
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/26
- Re: Grub-install documentation or override?, mgreger, 2015/06/26
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/26
- Re: Grub-install documentation or override?, mgreger, 2015/06/26
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/26
- Re: Grub-install documentation or override?, mgreger, 2015/06/26
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/27
- Re: Grub-install documentation or override?, mgreger, 2015/06/27
- Re: Grub-install documentation or override?, Andrei Borzenkov, 2015/06/27
- Re: Grub-install documentation or override?, mgreger, 2015/06/27