Running rkhunter daily per crontab shows the following error:

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+ /sbin/checkproc /etc/cron.daily/suse.de-rkhunter
+ test -x /etc/cron.daily/suse.de-rkhunter
++ /usr/bin/basename /etc/cron.daily/suse.de-rkhunter
+ BASESCRIPT=suse.de-rkhunter
+ nice -n 15 /etc/cron.daily/suse.de-rkhunter
+ local ERRNO=1
+ '[' 0 -eq 1 ']'
+ echo 'suse.de-rkhunter returned 1'
+ /bin/logger -t 'run-crons[24047]' -p warn
+ echo 'SCRIPT: suse.de-rkhunter exited with RETURNCODE = 1.'
SCRIPT: suse.de-rkhunter exited with RETURNCODE = 1.
+ STATUS=FAILURE
+ '[' -s /tmp/run-crons.a24049/run-crons.daily.24047 ']'
+ echo 'SCRIPT: output (stdout && stderr) follows'
SCRIPT: output (stdout && stderr) follows
+ echo ''

+ cat /tmp/run-crons.a24049/run-crons.daily.24047
Line: 
Warning: This operating system is not fully supported!
Line: Warning: This operating system is not fully supported!
Warning: Cannot find md5_not_known
Line: Warning: Cannot find md5_not_known
Watch out Root login possible. Possible risk!
Some errors has been found while checking. Please perform a manual check on this machine ipx20178
+ echo -e 'SCRIPT: suse.de-rkhunter\n------- END OF OUTPUT'
SCRIPT: suse.de-rkhunter
------- END OF OUTPUT
+ echo ''

+ echo ''

+ rm -f /tmp/run-crons.a24049/run-crons.daily.24047
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