[root@jabber bin]# ./openfire.sh 
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

[root@jabber bin]# java -version
java version "1.4.2"
gij (GNU libgcj) version 4.1.2 20071124 (Red Hat 4.1.2-42)

Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[root@jabber logs]# pwd
/opt/openfire/logs
[root@jabber logs]# ls -al
итого 4
drwxr-xr-x  2 daemon daemon  80 Мар 30 10:58 .
drwxr-xr-x 10 daemon daemon 352 Мар 30 10:58 ..
-rw-r--r--  1 root   root   133 Мар 30 22:40 nohup.out
[root@jabber logs]# cat nohup.out 
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.