failed to install license

[node_runner]

ok, I completely removed everything according to the wiki, did a fresh install, and here are the logs from zimbra trying to start up for the first time after a fresh install following the directions.

[mmorse]

This is why there's supported builds... (yes CentOS essentially = RHEL)
-you could contact support if you we're running RHEL or one of the other NE builds (as setup help is included in the trial).

Good so postfix seems to start fine now.

Now for those tomcat errors:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

zmlocalconfig | grep mem

How much ram do you have in your system?

[node_runner]

mysql_memory_percent = 62
tomcat_java_heap_memory_percent = 62

physically the server has 4GB of memory.

[jholder]

You're probably running into this:
CentOS - UTF-8 - unicode start - ZimbraWiki

It can really eat up memory and grind your system to a halt.