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Old 08-04-2011, 10:17 AM   #1
Registered: Feb 2005
Distribution: Ubuntu, CentOS
Posts: 585

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Fixing Unknown VM Type Error

This problem went away after a reboot.

I needed to upgrade a RH EL 4 system to Java 1.6. The system was running Java 1.4. I got the Java kit and installed it according to instructions, putting the jre1.6.0_21 directory in the /usr/share/java directory.

I'm getting this warning message, when invoking java.

Warning: unknown VM type on line 19 of `/usr/share/java/jre1.6.0_21/lib/i386/jvm.cfg'

Here's the file; line 19 is -client IF_SERVER_CLASS -server

# @(#)jvm.cfg 1.10 10/03/23
# Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
# ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
# List of JVMs that can be used as an option to java, javac, etc.
# Order is important -- first in this list is the default JVM.
# NOTE that this both this file and its format are UNSUPPORTED and
# WILL GO AWAY in a future release.
# You may also select a JVM in an arbitrary location with the
# "-XXaltjvm=<jvm_dir>" option, but that too is unsupported
# and may not be available in a future release.
-client IF_SERVER_CLASS -server
-server KNOWN
-hotspot ALIASED_TO -client
-classic WARN
-native ERROR
-green ERROR

What does this error mean? How do I remedy it?


Last edited by cmnorton; 08-04-2011 at 04:37 PM. Reason: Problem solved.
Old 08-08-2011, 12:30 AM   #2
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Glad it's solved. Off the Zero Reply List.

Kind regards,



java, warning: unknown vm type

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