title: How to fix "No SELinux security context (/etc/crontab)" issue?
body: <p>I have enabled SELinux in my yocto project(warrior branch) but <strong><code>cron</code></strong> is not functioning because of some SELinux context isuue. I am using <code>minimum</code> SELinux policy. Here is the error from <code>/var/log/messages</code></p>
  
  <pre><code>Oct  9 04:50:01 panther2 cron.info crond[261]: ((null)) No SELinux security context (/etc/crontab)        
  Oct  9 04:50:01 panther2 cron.info crond[261]: (root) FAILED (loading cron table)                       
  </code></pre>
  
  <p>Here are some contexts for relevant files,</p>
  
  <pre><code>root@panther2:~# ps -efZ | grep cron
  system_u:system_r:kernel_t:s0   root       464     1  0 04:54 ?    00:00:00 /usr/sbin/crond -n
  
  root@panther2:~# ls -lZ /etc/crontab 
  -rw-------. 1 root root system_u:object_r:unconfined_t:s0 653 Oct  9  2019 /etc/crontab
  
  root@panther2:~# ls -lZ /usr/sbin/crond 
  -rwxr-xr-x. 1 root root system_u:object_r:unlabeled_t:s0 68160 Oct  9  2019 /usr/sbin/crond
  </code></pre>
  
  <p>Any help? Thanks !!</p>