Hi there.

If it is the same LDAP wont start problem, i solved mine, by UNLINKING the /bin/sh from /bin/dash , and maked a link for /bin/sh to /bin/bash.
example :

root@ksrolin03:~# ls -ltra /bin/sh
lrwxrwxrwx 1 root root 4 2005-10-05 11:26 /bin/sh -> /bin/dash
root@ksrolin03:~# rm -r /bin/sh
root@ksrolin03:~# ln -s /bin/bash /bin/sh

This worked for me...
I think it would be better for you if you can paste some of the errors you are getting so the guys up here can tell more..
I`m not a "experienced" zimbra user, but i managed to install mine..
Wish u all the luck.

Mircea Coste
www.mircha.net
mailto : mircha@mircha.net