zmschedulebackup not working in LDAP master

[Vladimir]

Oddly zmschedulebackup doesnt seem to do what is supposed to do on a machine that is just an ldap server, with no other services running.

Currently the crontab shows:

# BACKUP BEGIN
0 1 * * 6 /opt/zimbra/bin/zmbackup
0 0 * * * /opt/zimbra/bin/zmbackup -del 1m
# BACKUP END

Running zmscheduleback to update it results in:

zmschedulebackup -R -a all f "0 1 * * *" d 2m "0 0 * * *"
Default schedule set

Current Schedule:

        d 1m 0 0 * * *

and the crontab is left unchanged.

It works fine on machines that have the mailbox part installed.

Would it hurt anything to edit the crontab by hand?