El 22/01/15 a las 22:25, Kris Moore escribió:
Hey all,
We are trying to create hybrid USB/DVD images, and they work just fine
on BIOS. However it doesn't seem to work when creating UEFI.
We are using the following:
# grub-mkrescue -d "/usr/local/lib/grub/x86_64-efi" -o <outfile> <dir>
-- -volid "OURLABEL"
This image does boot UEFI via DVD, but when copied to a USB stick with
dd it fails to boot with the following:
Hi,
I'm going to describe what I use for making a USB/CDROM EFI/x86
hybrid image for building SG2D (An improved Grub2 Disk).
But my question (after reading other replies to this question) is why
Grub2 should be patched for what he wants ? Is it a non standard EFI
boot maybe?
Thank you.
Debian way
==========
Install these two packages:
grub-efi-amd64-bin
grub-pc-bin
Run:
grub-mkrescue -o ./my_grub.iso
Upstream way (I actually want to ask here if this recipe could be
improved, but that would be probably need another email thread)
============
Make sure no Debian grub package is found in chroot
apt-get remove '.grub.'
Grub2 (efi+pc)) Build and installation
# Make sure we are testing the right revision
mkdir grub_upstream
cd grub_upstream
git clone git://git.savannah.gnu.org/grub.git .
git checkout COMMIT-TO-TEST
# Remove any non git related file - BEGIN
git reset --hard
git clean -f -d
git clean -f -x -d
# Remove any non git related file - END
# Build efi based grub and install it - BEGIN
./autogen.sh && ./configure --enable-grub-mkfont --with-platform=efi && make
# Dont forget to delete any rest of previous installation - BEGIN
sudo rm -rf /usr/local/etc/grub.d/ /usr/local/bin/grub-*
/usr/local/share/grub/
# Dont forget to delete any rest of previous installation - END
sudo make install
# Build efi based grub and install it - END
make clean # Prepare for next build
./configure --enable-grub-mkfont --with-platform=pc && make # Prepare
for a i386 build
sudo make install # Install i386 build
TL;DR: Make sure no Grub Debian package is installed, install grub
twice, one configured for x86, the other one configured for efi. Then
grub-mkrescue detects both modules and adds to the final image which by
default is ISO/USB hybrid.
By the way. I was told how to build the image without doing make install
(thus not having to remove any Debian Grub package) so I might re-adapt
this recipe in the future.
grub-mkrescue -o ./my_grub.iso
adrian15
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