Hi
I try to record in the MBR of USB keys an autonomous MBR (no support of
any other directory or file) to boot a PC with the system located on a
partition whose name is predefined "cielos", and in case this fails, to
chainload to the hd0's MBR.
I've understood from Grub's Manual that to achieve such a goal, I have
to embed the file using option -c of grub-mkimage.
I have now modified the --grub-mkimage option to point to the shell
script which creates /media/maisonnette/grub/core.img and from there I
have been able to imbed the file and launch a boot process. However,
this process failed, with a "no such device : the uuid I used in my
search.fs_uuid command" whereas such a device exists on my external device
The imbedded file reads
search.fs_uuid 0aceef09-a694-4105-bade-2dca95a09a08 root
set prefix=(root)/boot/grub
and a sudo blkid | grep 0aceef09-a694-4105-bade-2dca95a09a08 responds
/dev/sdb5: LABEL="cielos" UUID="0aceef09-a694-4105-bade-2dca95a09a08"
TYPE="ext4"
I try to understand why the search fails.
Le 20/03/2013 04:18, Andrey Borzenkov a écrit :
В Wed, 20 Mar 2013 00:15:07 +0100
"Arbiel (gmx)" <[email protected]> пишет:
Hi
I'm trying to embed a file into core.img. I followed instructions from
GNU Grub Manual's 5.4 Embedding a configuration file into Grub and tried
to replicate the example given there with a config file figuring two lines
search.fs_uuid the_uuid_of_my_partition root
set prefix=($root)/boot/grub
I used the following commands
#! /bin/bash
cd "${1}"
cat 1> grub/embed.cfg <<EOF
search.fs_uuid 0aceef09-a694-4105-bade-2dca95a09a08 root
set prefix=($root)/boot/grub
EOF
sudo grub-mkimage -c 'grub/embed.cfg' -o 'grub/grub-image' -O i386-pc -d
'/usr/lib/grub/i386-pc' -C none search_fs_uuid
-O and -d together are redundant.
sudo chmod +x 'grub/grub-image'
sudo grub-install --boot-directory=/media/maisonnette
--grub-mkimage=grub/grub-image /dev/sdb 2>grub/msg.log
--grub-mkimage points to program to create image, not to image itself.
You do not explain what you attempt to achieve. May be using grub-rescue
to build ISO image that includes full grub and can optionally include
arbitrary files would be easier?
I get the following error message
grub/grub-image: 1: grub/grub-image: Syntax error: word unexpected
(expecting ")")
Can anybody tell me what's wrong, knowing that my partition
/media/maisonnette has nothing to do with the
0aceef09-a694-4105-bade-2dca95a09a08 partition.
Thank you
I used the following command
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