File: //lib/dracut/modules.d/99kdumpbase/kexec-crypt-setup.sh
#!/bin/sh
#
LUKS_CONFIGFS_RESTORE=/sys/kernel/config/crash_dm_crypt_keys/restore
RESTORED=1
MAX_WAIT_TIME=10
wait_time=0
while [ $wait_time -lt $MAX_WAIT_TIME ]; do
[ -e $LUKS_CONFIGFS_RESTORE ] && break
sleep 1
wait_time=$((wait_time + 1))
done
if [ $wait_time -ge $MAX_WAIT_TIME ]; then
echo "$LUKS_CONFIGFS_RESTORE isn't ready after ${MAX_WAIT_TIME}s, something wrong!"
exit 1
fi
if ! grep -q "$RESTORED" "$LUKS_CONFIGFS_RESTORE"; then
echo $RESTORED > $LUKS_CONFIGFS_RESTORE
fi