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|
#!/bin/sh
# vim:ts=2:sw=2:et
# see also:
# https://kernel-handbook.alioth.debian.org/ch-update-hooks.html#s-kernel-hooks
set -e
# Play nice when run under debconf.
exec </dev/null >&2
eval set -- "$DEB_MAINT_PARAMS"
# Only run on configure to avoid unnecessary work.
if [ -z "$1" ] || [ "$1" != "configure" ]; then
exit 0
fi
if ! ischroot; then
if ! mountpoint -q /boot/firmware; then
echo "raspi3-firmware: missing /boot/firmware, did you forget to mount it?" >&2
exit 1
fi
fi
latest_kernel=$(ls -1 /boot/vmlinuz-* | sort -r | head -1)
if [ -z "$latest_kernel" ]; then
echo "raspi3-firmware: no kernel found in /boot/vmlinuz-*, cannot populate /boot/firmware"
exit 0
fi
latest_initrd=$(ls -1 /boot/initrd.img-* | sort -r | head -1)
if [ -z "$latest_initrd" ]; then
echo "raspi3-firmware: no initrd found in /boot/initrd.img-*, cannot populate /boot/firmware"
exit 0
fi
latest_dtb="/usr/lib/linux-image-${latest_kernel#/boot/vmlinuz-}/broadcom/bcm2837-rpi-3-b.dtb"
if [ ! -e "$latest_dtb" ]; then
echo "raspi3-firmware: device tree file ${latest_dtb} does not exist, cannot populate /boot/firmware"
exit 0
fi
cp "$latest_kernel" /boot/firmware/
cp "$latest_initrd" /boot/firmware/
cp "$latest_dtb" /boot/firmware/
latest_kernel_basename=$(basename "$latest_kernel")
latest_initrd_basename=$(basename "$latest_initrd")
latest_dtb_basename=$(basename "$latest_dtb")
cat >/boot/firmware/config.txt <<EOF
# Switch the CPU from ARMv7 into ARMv8 (aarch64) mode
arm_control=0x200
enable_uart=1
device_tree=${latest_dtb_basename}
kernel=${latest_kernel_basename}
# For details on the initramfs directive, see
# https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=10532
initramfs ${latest_initrd_basename}
EOF
# Our cmdline.txt is the default (see http://elinux.org/RPi_cmdline.txt), but
# without parameters for drivers we do not have (e.g. dwc_otg.lpm_enable) or
# parameters we do not need (e.g. rootfstype=, as we are using an initrd).
cat >/boot/firmware/cmdline.txt <<EOF
console=ttyAMA0,115200 root=/dev/mmcblk0p2 elevator=deadline fsck.repair=yes rootwait
EOF
cd /boot/firmware
for file in vmlinuz-* initrd.img-*; do
if [ ! -e "/boot/$file" ]; then
echo "raspi3-firmware: deleting obsolete /boot/firmware/$file (no longer in /boot)"
# Keep going if cleanup of individual files fails. It is better for the end
# user to have a working package upgrade and a slight waste of space than a
# broken upgrade.
rm -f "$file" || true
fi
done
|
