[Koha] Zebra index for koha

[Quoc Uy]

I installed Koha by using http://wiki.koha-community.org/wiki/Koha_on_ubuntu_-_packages
From beginning, it worked amazing, i created some instances. Now after restart system (reboot), zebraindex doesn't work. I used command "koha-rebuild-zebra -v -f {instance}" rebuild, but after this, how can i make zebra index works for all instances now and then automatic like it did before? Anyone got problem like this?

i checked /etc/cron.d/koha-common

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

*/5 * * * * root test -x /usr/sbin/koha-rebuild-zebra && koha-rebuild-zebra $(koha-list --enabled)
*/15 * * * * root koha-foreach --enabled --email /usr/share/koha/bin/cronjobs/process_message_queue.pl

and used sudo /etc/init.d/koha-zebra-daemon start but it didn't work

One more question, how can i search with unicode? Now my koha doesn't support this (3.8.7)

Thanks all!