Stolen efi-image and grub-cpmodules from src:live-installer
These two scripts simplify the creation of efi images based on grub-efi. I have decided to simply steal them. If I had to include them thanks to a source package that would have mean that an src repo would have to be defined by default. TODO: Ask in a bug a RFE so that these two scripts are put into a binary that could be consumed by both live-installer and live-build packages.
This commit is contained in:
Adrian Gibanel Lopez
parent
c4327f6138
commit
58a97219c9
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#! /bin/sh
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set -e
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# Copyright (C) 2010, 2011 Canonical Ltd.
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# Author: Colin Watson <cjwatson@ubuntu.com>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 2, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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# Make an EFI boot image.
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if [ -z "$1" ] || [ -z "$2" ]; then
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echo "usage: $0 OUTPUT-DIRECTORY GRUB-PLATFORM EFI-NAME NETBOOT-PREFIX"
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exit 1
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fi
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outdir="$1"
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platform="$2"
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efi_name="$3"
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netboot_prefix="$4"
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memdisk_img=
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workdir=
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cleanup () {
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[ -z "$memdisk_img" ] || rm -f "$memdisk_img"
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[ -z "$workdir" ] || rm -rf "$workdir"
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}
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trap cleanup EXIT HUP INT QUIT TERM
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rm -rf "$outdir"
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mkdir -p "$outdir"
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memdisk_img="$(mktemp efi-image.XXXXXX)"
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workdir="$(mktemp -d efi-image.XXXXXX)"
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# Skeleton configuration file which finds the real boot disk.
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mkdir -p "$workdir/boot/grub"
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cat >"$workdir/boot/grub/grub.cfg" <<EOF
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search --file --set=root /.disk/info
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set prefix=(\$root)/boot/grub
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source \$prefix/$platform/grub.cfg
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EOF
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mkdir -p "$outdir/boot/grub/$platform"
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(for i in /usr/lib/grub/$platform/part_*.mod; do
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i=`echo $i | sed 's?^.*/??g;s?\.mod$??g;'`
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echo "insmod $i"
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done; \
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echo "source /boot/grub/grub.cfg") >"$outdir/boot/grub/$platform/grub.cfg"
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# Build the core image.
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(cd "$workdir"; tar -cf - boot) >"$memdisk_img"
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grub-mkimage -O "$platform" -m "$memdisk_img" \
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-o "$workdir/boot$efi_name.efi" -p '(memdisk)/boot/grub' \
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search iso9660 configfile normal memdisk tar part_msdos part_gpt fat
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grub-mkimage -O "$platform" \
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-o "$outdir/bootnet$efi_name.efi" -p "$netboot_prefix/grub" \
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search configfile normal efinet tftp net
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# Stuff it into a FAT filesystem, making it as small as possible. 24KiB
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# headroom seems to be enough; (x+31)/32*32 rounds up to multiple of 32.
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mkfs.msdos -C "$outdir/efi.img" \
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$(( ($(stat -c %s "$workdir/boot$efi_name.efi") / 1024 + 55) \
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/ 32 * 32 ))
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mmd -i "$outdir/efi.img" ::efi
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mmd -i "$outdir/efi.img" ::efi/boot
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mcopy -i "$outdir/efi.img" "$workdir/boot$efi_name.efi" \
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"::efi/boot/boot$efi_name.efi"
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grub-cpmodules "$outdir" "$platform"
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exit 0
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@ -0,0 +1,55 @@
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#! /bin/sh
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set -e
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# Copyright (C) 2010, 2011 Canonical Ltd.
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# Author: Colin Watson <cjwatson@ubuntu.com>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 2, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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# Copy GRUB modules.
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# TODO: take the modules list as parameter, and only include the needed modules, using moddeps.lst to get dependencies
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if [ -z "$1" ] || [ -z "$2" ]; then
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echo "usage: $0 OUTPUT-DIRECTORY GRUB-PLATFORM"
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exit 1
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fi
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outdir="$1"
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platform="$2"
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# Copy over GRUB modules, except for those already built in.
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cp -a "/usr/lib/grub/$platform"/*.lst "$outdir/boot/grub/$platform/"
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for x in "/usr/lib/grub/$platform"/*.mod; do
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# TODO: Some of these exclusions are based on knowledge of module
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# dependencies. It would be nice to have a way to read the module
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# list directly out of the image.
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case $(basename "$x" .mod) in
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configfile|fshelp|iso9660|memdisk|search|search_fs_file|search_fs_uuid|search_label|tar)
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# included in boot image
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;;
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affs|afs|afs_be|befs|befs_be|minix|nilfs2|sfs|zfs|zfsinfo)
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# unnecessary filesystem modules
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;;
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example_functional_test|functional_test|hello)
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# other cruft
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;;
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*)
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cp -a "$x" "$outdir/boot/grub/$platform/"
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;;
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esac
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done
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exit 0
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