i have set CLEAR_TMP_DIRS_AT_BOOTUP to 1. works fine.
however i mount /tmp to another partition on another drive since i use it very regulary. thus for a little speed up i also made a link from /var/tmp to a new folder /tmp/vartmp . this folder however is deleted by the cron deamon on bootup. can i prevent this? OWNER_TO_KEEP_IN_TMP does not seem to work, since both are @root.