Merge lp:~tribaal/ubumirror/fix-crontab-example into lp:ubumirror

[Chris Glass]

This branch changes the example crontab to be useable.

[lp:~tribaal/ubumirror/fix-crontab-example]

69. By Chris Glass on 2014-06-08

Added small note about "randomizing" minute values.

=== modified file 'ubumirror.crontab'
--- ubumirror.crontab	2010-01-23 16:10:21 +0000
+++ ubumirror.crontab	2014-06-08 06:15:26 +0000
@@ -1,7 +1,12 @@
 # https://wiki.ubuntu.com/Mirrors
+# This file can be put as-is in the /etc/cron.d/ directory.
+#
+# !!! Please consider changing run minutes to something random so as to not
+# artifically overload main archives at specific times.
+#
 # Update archive mirror every six hours.
-03 */6 * * * ubumirror /usr/bin/ubuarchive >/dev/null
-# Update releases mirror every four hours.
-03 */4 * * * ubumirror /usr/bin/uburelease >/dev/null
-# Update cdimage mirror every twenty-four hours.
-03 11 * * * ubumirror /usr/bin/ubucdimage >/dev/null
+13 */6 * * * /usr/bin/ubuarchive >/dev/null
+# Update releases mirror every four hours
+33 */4 * * * /usr/bin/uburelease >/dev/null
+# Update cdimage mirror every twenty-four hours around 5 am.
+53 4 * * * /usr/bin/ubucdimage >/dev/null