debian-cd-clone/tools/boot/buster/boot-arm64

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#!/bin/bash
# Based on boot-x86
#
# Do install stuff for arm64, including making bootable CDs
# Works with debian-installer
#
# $1 is the CD number
# $2 is the temporary CD build dir
. $BASEDIR/tools/boot/$DI_CODENAME/common.sh
set -e
#set -x
# Workaround for #823881:
export MTOOLS_SKIP_CHECK=1
N=$1
CDDIR=$2
INSTALLDIR="install.a64"
# Common options for all disks
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-J -joliet-long"
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-cache-inodes"
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-l"
# Exit if this is not CD#1/DVD#1
if [ $N != "1" ]; then
exit 0
fi
if [ "$DI_WWW_HOME" = "default" ]; then
DI_WWW_HOME="https://d-i.debian.org/daily-images/arm64/daily"
try_di_image_cache
else
DI_WWW_HOME=$(echo $DI_WWW_HOME | sed "s,%ARCH%,$ARCH,")
fi
case "$MKISOFS" in
*xorriso*)
XORRISO_VER=$(xorriso_version)
;;
*)
echo "ERROR: debian-cd depends on xorriso for making arm64 bootable CDs."
exit 1;
;;
esac
cd $CDDIR/..
BOOT_IMAGES="cdrom/initrd.gz cdrom/vmlinuz cdrom/debian-cd_info.tar.gz"
# Download boot images.
for image in $BOOT_IMAGES; do
if [ ! -e "$image" ]; then
dir=$(dirname $image)
mkdir -p $dir
if [ -n "$LOCAL" -a -f "${LOCALDEBS:-$MIRROR}/dists/$DI_DIST/local/installer-$ARCH/current/images/$image" ]; then
cp "${LOCALDEBS:-$MIRROR}/dists/$DI_DIST/local/installer-$ARCH/current/images/$image" "$image"
elif [ ! "$DI_WWW_HOME" ];then
if [ ! "$DI_DIR" ];then
DI_DIR="$MIRROR/dists/$DI_DIST/main/installer-$ARCH/current/images"
fi
cp "$DI_DIR/$image" "$image"
else
$WGET "$DI_WWW_HOME/$image" -O "$image"
fi
fi
done
mkdir -p $CDDIR/$INSTALLDIR
cp -lf cdrom/vmlinuz $CDDIR/$INSTALLDIR/
cp -lf cdrom/initrd.gz $CDDIR/$INSTALLDIR/
# Boot setup including config and help files comes from d-i.
mkdir -pv $PWD/boot$N
cat cdrom/debian-cd_info.tar.gz | (cd boot$N/; tar zx)
if [ -d boot$N/grub ] ; then
echo " Adding EFI boot code for $ARCH on CD$N"
# Move GRUB files to the right place.
mkdir -p $CDDIR/efi/boot
mcopy -i boot$N/grub/efi.img ::efi/boot/bootaa64.efi $CDDIR/efi/boot/bootaa64.efi
mkdir -p $CDDIR/boot/grub
mv boot$N/grub/* $CDDIR/boot/grub/
rmdir boot$N/grub
# Stuff the EFI boot files into a FAT filesystem, making it as
# small as possible. 24KiB headroom seems to be enough;
# (x+31)/32*32 rounds up to multiple of 32.
# This is the same as in efi-image, but we need to redo it here in
# the case of a multi-arch image
# Stuff the EFI boot files into a FAT filesystem, making it as
# small as possible.
sector_bytes=512 # -S
cluster_sectors=4 # -s
cluster_bytes=$((sector_bytes * cluster_sectors))
clusters=2 # 1 cluster for each sub-directory
for file in $CDDIR/efi/boot/boot*.efi; do
[ -f "$file" ] || continue
clusters=$(($clusters + (($(stat -c %s "$file") + $cluster_bytes - 1) / $cluster_bytes)))
done
reserved_sectors=1 # boot-sector -R
reserved_bytes=$(($reserved_sectors * $sector_bytes))
fat_copies=2 # -f
if [ "$clusters" -le $(((1 << 12) - 2)) ]; then
fat_entry_bytes=3/2 # -F
elif [ "$clusters" -le $(((1 << 16) - 2)) ]; then
fat_entry_bytes=2 # -F
else
fat_entry_bytes=4 # -F
fi
fat_bytes=$((($clusters * $fat_entry_bytes + $sector_bytes - 1) / $sector_bytes * $sector_bytes))
root_entries=512 # -r
root_entry_bytes=32
root_bytes=$(($root_entries * root_entry_bytes))
size=$(($reserved_bytes + $fat_copies * $fat_bytes + $root_bytes + $clusters * $cluster_bytes))
track_sectors=32
track_bytes=$((sector_bytes * $track_sectors))
tracks=$((($size + $track_bytes - 1) / $track_bytes))
block_bytes=1024
blocks=$(($tracks * $track_bytes / $block_bytes))
rm -f $CDDIR/boot/grub/efi.img
mkfs.msdos -v -C "$CDDIR/boot/grub/efi.img" $blocks >/dev/null
mmd -i "$CDDIR/boot/grub/efi.img" ::efi
mmd -i "$CDDIR/boot/grub/efi.img" ::efi/boot
mcopy -o -i "$CDDIR/boot/grub/efi.img" $CDDIR/efi/boot/boot*.efi \
"::efi/boot"
# Ugh - different code here depending on the version of xorriso we've got
if [ $XORRISO_VER -le 10202 ] ; then
echo "ERROR: debian-cd depends on xorriso > 1.2.2 for making arm64 bootable CDs."
exit 1;
elif [ $XORRISO_VER -gt 10202 ] ; then
echo "Using newer EFI support in xorriso $XORRISO_VER"
# Location of the EFI boot image, and don't emulate a floppy or HD
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-e boot/grub/efi.img -no-emul-boot"
# Add an *extra* partition on the end for the EFI bits
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-append_partition 2 0xef $CDDIR/boot/grub/efi.img"
# And force alignment
add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-partition_cyl_align all"
fi
# Finally, belt and braces - fix up the %install% entries in grub
# in case they're still there
sed -i "s,\%install\%,$INSTALLDIR,g" $CDDIR/boot/grub/grub.cfg
else
echo " No EFI boot code for $ARCH on CD$N"
fi
# th,th, thats all