/usr/share/initramfs-tools/hooks
Edit: /usr/share/initramfs-tools/hooks/linux-firmware (865B)
#!/bin/sh
prereqs()
{
# linux-firmware should run last since other hooks might add additional firmware
for _req in "${0%/*}"/* ; do
_script="${_req##*/}"
if [ "${_script}" != "${0##*/}" ] ; then
echo "${_script}"
fi
done
}
case "${1}" in
prereqs)
prereqs
exit 0
;;
esac
. /usr/share/initramfs-tools/hook-functions
test -d "${DESTDIR}"/lib/firmware || exit 0
prev_md5=
find "${DESTDIR}"/lib/firmware ! -empty -type f -exec md5sum -b {} + | sort | uniq -w32 -dD | \
while IFS= read -r line ; do
md5=$(printf '%s' "${line}" | cut -c -32)
fw=$(printf '%s' "${line}" | cut -c 35-)
if [ "${md5}" != "${prev_md5}" ] ; then
tgt=${fw}
else
lnk=$(realpath --relative-to="${fw%/*}" "${tgt}")
[ "${verbose}" = "y" ] && echo "Create firmware-link ${fw} -> ${lnk}"
rm -f "${fw}"
ln -s "${lnk}" "${fw}"
fi
prev_md5=${md5}
done