Java.lang.ClassFormatError: HTML (Bad magic number)

hi,
i have quite a strange problem:
when my applet tries to parse an XML file with SAX (no DTD-validation) i got the following error:
java.lang.ClassFormatError: <HTML> (Bad magic number)
Well i had some problems before with the ClassFormatError but they were because some class-files were corrupt. They were easy to fix because the defecitve class-file was written next to java.lang.ClassFormatError. This time i got the <HTML> expression next to the error. what does this mean?
thnx in advance!
marc

Bad magic Number. means the first 4 bytes did not equals CAFEBABE (0xCAFEBABE) But why do you see <HTML> after that is beyound me. Can you locate which class is foul and replace it?

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Java.lang.ClassFormatException : Bad Magic number Excpetion

Hi all
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Java.lang.ClassFormatError: Bad major version number

Hi friends,
I am using JWS2.0(trial version). I have uploaded class files into servlet (and respective packages), every thing was working fine. one fine day i started getting the 404 - file not found error(JWS not yet expired). I uninstalled the jws, j2sdk1.4.0, jre1.4.0 but with no result.
I even formated the system and loaded all again. But still i am getting the same problem.
The servlet is the simple HelloWorld servlet.
Through the SunExample its working fine. But the uploaded servlet is not getting recognised.
Here is the ErrorLog
[Tue Feb 22 17:26:29 GMT+05:30 2005] ClassLoaderFactory Error: Can not find Class : Hello [ ClassNotFoundException ]
[Tue Feb 22 17:26:31 GMT+05:30 2005] ClassLoaderError: (com.sun.server.loader.JarClassLoader@17d67e:\servlets) ERROR: Unable to load class local class Hello
[Tue Feb 22 17:26:31 GMT+05:30 2005] java.lang.ClassFormatError: Bad major version number
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Try re-compiling the Servlet. Make sure that the JDK version used to recompile is <= the version used to run the server (if you are using a higher jdk to compile the servlet, maybe Java 5.x, then you are to run, maybe Java 1.4.x, then use the -target option of javac to target the lower release...)

ALERT: java/lang/ClassFormatError: Bad stack map.

Hello friends.
I need help. SOS.
Where is wrong in this code?
Problem is in comparision.
Comenting this lines, all are ok.
        if(time1==time2)
            System.out.println("Equal");
        else
            System.out.println("Different");C�digo del Midlet:
package borrame.pruebas;
import java.util.Date;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class Prueba extends MIDlet implements CommandListener {
    Display display;
    Form mainForm;
    // Comandos para salir y volver a la pantalla principal.
    Command cmdSalir;
    public Prueba() {
        super();
        mainForm = new Form ("HelloMidp");
        cmdSalir = new Command("Salir", Command.EXIT,1);
        mainForm.addCommand(cmdSalir);
        mainForm.setCommandListener(this);
    protected void startApp() throws MIDletStateChangeException {
        display = Display.getDisplay(this);
        display.setCurrent (mainForm);
        long time1 = new Date().getTime();
        long time2 = new Date().getTime() +100;
        System.out.println("time1: " + time1);
        System.out.println("time2: " + time2);
        System.out.println("time1 + time2 =" + (time1 + time2));
        if(time1==time2)
            System.out.println("Equal");
        else
            System.out.println("Different");
    protected void pauseApp() {
        // TODO Auto-generated method stub
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
        // TODO Auto-generated method stub
    public void commandAction(Command c, Displayable d) {
        if (c == cmdSalir) { // Selecciono salir de la aplicacion
            try {
                destroyApp(false);
            } catch (MIDletStateChangeException e) {
                e.printStackTrace();
            notifyDestroyed();
}Output console:
Warning: Cannot convert string "-b&h-lucida-medium-r-normal-sans-*-140-*-*-p-*-iso8859-1" to type FontStruct
Running with storage root DefaultColorPhone
ALERT: java/lang/ClassFormatError: Bad stack map.
Method............: b7d29990 'com/sun/midp/midlet/MIDletState.createMIDlet (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d3a4
Current IP........: b7da5669 = b7da565b + offset 14
Previous Frame....: b783d36c
Previous IP.......: b7d87f44 (offset 52)
Frame size........: 7 (1 arguments, 6 local variables)
Argument[0].......: b783cad0
Local[1]..........: b78b35c8
Local[2]..........: b7d87f41
Local[3]..........: b783cc38
Local[4]..........: b7d29788
Local[5]..........: b78b355c
Local[6]..........: 0
Operand[1]........: b783cad0
Method............: b7d16390 'com/sun/midp/midlet/Scheduler.schedule (virtual)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d36c
Current IP........: b7d87f44 = b7d87f10 + offset 52
Previous Frame....: b783d338
Previous IP.......: b7d92b05 (offset 28)
Frame size........: 7 (2 arguments, 5 local variables)
Argument[0].......: b783cd14
Argument[1].......: b783c460
Local[2]..........: b78b20c4
Local[3]..........: b78b3594
Local[4]..........: b7d92b01
Local[5]..........: b78b35a8
Local[6]..........: b7d162b0
Operand[1]........: b783cd14
Method............: b7d1e084 'com/sun/midp/main/Main.runLocalClass (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d338
Current IP........: b7d92b05 = b7d92ae9 + offset 28
Previous Frame....: b783d314
Previous IP.......: b7d9257c (offset 116)
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d1bc
Local[1]..........: b783c460
Local[2]..........: b78b3570
Method............: b7d1dfe4 'com/sun/midp/main/Main.main (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d314
Current IP........: b7d9257c = b7d92508 + offset 116
Previous Frame....: 0
Previous IP.......: 1
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d5ec
Local[1]..........: b783d1bc
Local[2]..........: b783cb24
VM status:
Instruction pointer.: b7da5669 (offset within invoking method: 14)
Next instruction....: 0x4c
Frame pointer.......: b783d3a4
Local pointer.......: b783d388
Stack size..........: 128; sp: b783d3bc; ranges: b783d308-b783d508;
Contents of the current stack frame:
    b783d388: b783cad0 (lp)
    b783d38c: b78b35c8
    b783d390: b7d87f41
    b783d394: b783cc38
    b783d398: b7d29788
    b783d39c: b78b355c
    b783d3a0: 0
    b783d3a4: b783d36c (fp)
    b783d3a8: b7d87f44
    b783d3ac: b783d384
    b783d3b0: b7d29990
    b783d3b4: b783d300
    b783d3b8: 0 (end of frame)
    b783d3bc: b783cad0 (sp)
Execution stack contains 184 items:
b783d5ec
b783d1bc
b783cb24
0
1
b78b3560
b7d1dfe4
b783d300
0
b783d1bc
b783c460
b78b3570
b783d314
b7d9257c
b783d328
b7d1e084
b783d300
0
b783cd14
b783c460
b78b20c4
b78b3594
b7d92b01
b78b35a8
b7d162b0
b783d338
b7d92b05
b783d34c
b7d16390
b783d300
0
b783cd14
b783cad0
b78b35c8
b7d87f41
b783cc38
b7d29788
b78b355c
0
b783d36c
b7d87f44
b783d384
b7d29990
b783d300
0
b783cad0
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)

My enviroment:
Linux Gentoo.
Sun JDK 1.4.2.10
eclipse 3.2 WTP 1.5
eclipseme 1.5.5
Midlet config:
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
WTK 2.2
In last test, i'm using ktoolbar directly to build and execute midlet and all go ok.
So, My code is not problem.
I suppose that eclipseme corrupt my classes in build process.
SOLUTION:
My radical solution. I use eclipse without eclipseme, and i use ktoolbar to build, run, package, etc...
Thank's

ALERT: java/lang/ClassFormatError: Bad version information.

Hi all,
I'm developing a mobile application but I got this error: ALERT: java/lang/ClassFormatError: Bad version information.
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The situation is the following:
IDE: netBeans 6.5
MIDP2.1
CLDC1.1
javac.source=1.3
javac.target=1.3
J2ME web services 1.0 loaded.
The application retrieves tracking data from a .net web service: I've created the stub with the sun official tool included in the WTK (Stub Generator).
When I run the jar with the sun device emulator, the splash screen is loaded but, when I retrieve data from the web service, the application crashes with the error ALERT: java/lang/ClassFormatError: Bad version information. No problem if there's no data to fetch.
Where am I wrong? pls help, thx,
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Have you tried JSR172Demo application that is supplied with Netbeans? if yes, did it work?
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Java/lang/ClassFormatError: Bad version information.

Hi
When running the midlet in wireless tool kit the following
error is occuring
java/lang/ClassFormatError: Bad version information.
can any body suggest me wat the problem is

Hi,
answer is at http://forum.java.sun.com/thread.jspa?threadID=569449&tstart=0

JVM issue with applet - Duplicate Key in Parameter Table - Bad Magic Number

Hey, I have Googled this one to death and have seen a few vague references to this problem, but nothing I can relate back as solution.
I wonder if I need to tell the customer to reinstall the OS and, ultimately, the JRE. I'm just looking for a little guidance on what any of you may think. Am I missing a setting or something?
The user is trying to download an applet with IE with 1.3.1_16 and Firefox 1.07 with the Java Embeded Plug-in.
Even though JRE 1.3.1_16, 1.4.2_09 and 1.5 are all installed and Firefox has the JEP also installed, Firefox still wants to use 1.3.1_16 as does IE. I'm guessing that the JEP didn't work.
They can't use Safari which does seem to be using 1.4.2_09 because their RSA ID won't authenticate through it.
On my machine, when I run with the same OS,browsers, and Java 2 plug-ins, I can successfully load the applet.
This is the error that the user gets in the java console is:
Duplicate key in parameter table: code using the htmlAttribute.
first: com.ibm.eNetwork.HOD.HostOnDemand
second: com.ibm.eNetwork.HOD.HostOnDemand.class
java.lang.ClassFormatError: com/ibm/eNetwork/HOD/HostOnDemand (Bad magic number) at java.lang.ClassLoader.defineClass0(NativeMethod)
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Thank you.

Without reading the full post (sorry for that) my guess is that the applet needed to be fetched through a
proxy, the proxy corrupts the applet because it's signed (finjan is one that does that).
The reason why a proxy would do so is because the default settings of sun jre will ask the user the
"do you trust" question to the user which could result in the user loading an applet that is allowed to do
anything the programmer wants (4us, spyware, nasty stuff).
Try to do the following:
1. create a html file locally with the following content:
rightclick and save target as
2. open the page, right click the link and save the file
3. apen the file with an unzip programm (winzip) and check if the content has changed.
4. If the content has changed than the proxy might have done this, contact the system administrator
It might allso have been done by a firewall installed locally.

[b] bad magic number [/b]

hallo,
first sorry for my bad english but i'm from austria.
i wrote a html-page in which a applet is called using object tag. if i click on this page open it with ie there is no problem, but when i return this page with an servlet i get the following stacktrace:
java.lang.ClassFormatError: spider/view/Graph (Bad magic number)
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source) i'm greatfully for any help

the client and the server are using jdk1.4 exactly the same cause I reinstalled it on both machines.
Also I recompiled it several times but it doesn't work anyway.
i get the stacktrace on client side. and my html page which the servlet returns is the following:
<html>
<head>
<title>Spider V 1.0</title>
</head>
<body style="margin:0px;">
<center>
<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<COMMENT><SCRIPT LANGUAGE="JavaScript1.1"></SCRIPT></COMMENT>
<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<APPLET CODE = "spider.view.Graph" ARCHIVE = "spider.jar" WIDTH = 100% HEIGHT = 100%></XMP>
<PARAM NAME = CODE VALUE = "spider.view.Graph" >
<PARAM NAME = ARCHIVE VALUE = "spider.jar" >
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.4">
<PARAM NAME="scriptable" VALUE="false">
<PARAM NAME = "browser" VALUE ="yes">
<PARAM NAME=OID VALUE=339>
<PARAM NAME=TYPE VALUE=Case>
<PARAM NAME=AVW_USER VALUE=Gernot>
<PARAM NAME=AVW_PASSWORD VALUE=Manzel>
</APPLET>
</NOEMBED></EMBED></OBJECT>
</body>
</html>

Java.lang.ClassFormatError: EDU/oswego/cs/dl/util/concurrent/ConcurrentRead

Hi,
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at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at sun.applet.AppletClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.applet.AppletClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.dom4j.tree.NamespaceCache.<clinit>(NamespaceCache.java:48)
at org.dom4j.Namespace.<clinit>(Namespace.java:24)
at org.dom4j.DocumentFactory.createNamespace(DocumentFactory.java:161)
at org.dom4j.tree.NamespaceStack.createNamespace(NamespaceStack.java:286)
at org.dom4j.tree.NamespaceStack.getQName(NamespaceStack.java:167)
at org.dom4j.io.SAXContentHandler.startElement(SAXContentHandler.java:221)
at org.apache.crimson.parser.Parser2.maybeElement(Unknown Source)
at org.apache.crimson.parser.Parser2.parseInternal(Unknown Source)
at org.apache.crimson.parser.Parser2.parse(Unknown Source)
at org.apache.crimson.parser.XMLReaderImpl.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:334)
at org.dom4j.io.SAXReader.read(SAXReader.java:236)
at client.Load.<init>(Load.java:42)
at client.Login.startLoad(Login.java:183)
at client.ParamTimer.run(ParamTimer.java:30)
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The error message says that the class file has a bad "magic number." Magic number is the first four bytes of a .class file and in a valid file they should be CA FE BA BE (in hex); "bad magic number" means that the first four bytes are something else and therefore it's not a valid Java .class file.

Bad magic number

I have an applet that i am trying to load in a JSP
<applet name="MyTestApplet" code="mypackage.MyTestApplet.class" >
</applet>
mypackage/MyTestApplet.class is under the approot/pages directory and the jsp is also in the same directory.
whenever the jsp is called and applet does not get inited and the error i see is a ClassFormatError: Bad magic number
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First the <applet tag is depreciated, you should use <object instead (w3c has depreciated applet for quite
some time now).
When I see the tag you don't use a jar package (archive is missing) so let's pretend the url to your page is
http://mysite/mypage.jsp
the mypage.jsp contains the applet so the url to the applet is:
http://mysite/mypackage/MyTestApplet.class
can you download the file using a browser?
you can do this by saving the following line in a html file and right click it then sava target
right click and save target as
After downloading is the file the same as the file on the web server?
The reason I ask this is because I got the bad magic number when a jar was loaded through a proxy.
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Java.lang.ClassFormatError: _Basic using JSF in Jdeveloper10gv12

Can someone give me why I get the following error : I've included the Class, JSP and daces-config code
Thank
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500 Internal Server Error
OracleJSP:
JSP Error:
Request URI:/Application1-Project1-context-root/Basic.jsp
Exception:
java.lang.ClassFormatError: _Basic
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     at oracle.jsp.runtimev2.JspPageTable.getInstFacade(JspPageTable.java:473)
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     at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
     at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
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     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)
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     at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
     at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
     at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:649)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:322)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
     at java.lang.Thread.run(Thread.java:534)
Java Class
package mypackage.backing;
import com.sun.faces.taglib.jsf_core.SelectItemsTag;
import java.util.*;
import javax.faces.model.SelectItem;
import javax.faces.model.*;
import mypackage.backing.Scholarship;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
public class Basic
private SelectItem[] basicdays = new SelectItem[]{
new SelectItem(" "),
new SelectItem("Basic Information"),
new SelectItem("Calculate Project"),
new SelectItem("Change Ownership"),
new SelectItem("Configure Project - Facility Category Group"),
new SelectItem("Worksheets")
private String basicday = "";
public Basic()
System.out.println("Class BASIC " );
public SelectItem[] getBasicdays() {
return basicdays;
public void setBasicdays(SelectItem[] days) {
this.basicdays = days;
public String getBasicday() {
return basicday;
public void setBasicday(String day) {
this.basicday = day;
JSP Code
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<f:view>
<h:outputText value="Hello"></h:outputText>
<h:panelGrid columns="2"
rowClasses="centered" footerClass="centered" border="1">
<h:outputText value="Days List"></h:outputText>
<h:selectOneMenu id="days" value="#(backing_basic.basicday)">
<f:selectItems value="#{backing_basic.basicdays}"/>
</h:selectOneMenu >
</h:panelGrid>
</f:view>
Faces config
<managed-bean>
<managed-bean-name>backing_basic</managed-bean-name>
<managed-bean-class>mypackage.backing.Basic</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<navigation-rule>
<from-view-id>/basic.jsp</from-view-id>
<navigation-case>
<from-outcome>nextpage</from-outcome>
<to-view-id>/finish.jsp</to-view-id>
</navigation-case>
</navigation-rule>
</faces-config>

I tested this code(copy-paste) in Orion and Tomcat and it works fine. I guess that this is not the full code you are executing since I see not used imports, the jsp without the <h:form> tag and a navigation rule that will never take place. Anyway try to deploy this to Tomcat or another AS to check if it running properly. I have seen ADF application running correct on Tomcat and not on Orion.

T6340 cannot boot disk - Bad magic number in disk label

Hi,
I have a shiny new T6340 that I am just setting up.
When I get through the CMM to the SP and onto the EEPROM,
I then try to start the boot process:
{0} ok boot disk1
Sun Blade T6340 Server Module, No Keyboard
Copyright 2009 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.30.4, 130848 MB memory available, Serial #76313344.
Ethernet address 0:14:4f:8c:73:0, Host ID: 848c7300.
Boot device: /pci@500/pci@0/pci@9/@0/disk@1 File and args:
Bad magic number in disk label
Can't open disk label package
ERROR: boot-read fail
Evaluating:
Can't open boot device
{0} ok show-disks
a) /pci@500/pci@0/pci@9/LSILogic,sas@0/disk
b) /pci@500/pci@0/pci@2/pci@0/usb@0,2/storage@5/disk
c) /pci@500/pci@0/pci@2/pci@0/usb@0,2/storage@1/disk
q) NO SELECTION
Enter Selection, q to quit: q
{0} ok boot /pci@500/pci@0/pci@9/LSILogic,sas@0/disk
Boot device: /pci@500/pci@0/pci@9/LSILogic,sas@0/disk File and args:
Bad magic number in disk label
Can't open disk label package
ERROR: boot-read fail
Can't open boot device
{0} ok This is a brand new B6000 system and has not been booted before.
Please tell me what I need to do to enable the disks, so I can do the next bit!
rachel

@rachel,
In your original post you showed a screen capture of what you tried.
First you typed "boot disk1". ( Why disk1? Why not disk0?)
When that didn't seem to work, you displayed the disks recognized by the system at OpenBoot.
The first of those disks was a device path of
/pci@500/pci@0/pci@9/LSILogic,sas@0/disk{code}
and so you attempted to boot from that but omitted whatever slice might be the boot slice of a factory preinstalled OS. For example...
{code:java}
boot /pci@500/pci@0/pci@9/LSILogic,sas@0/disk@0,0{code}
(just guessing at what could be that bootable slice).
What happens if you simply type "*boot*" when you are at OBP?

Problem with:error: java.lang.ClassFormatError: Truncated class file

Hello, I created an simple applet writing "hello world". Now I would like to add *.class file to my serwer witch I've implemented on microcontroller P89C51RD2BN.
Serwer is programmed with hex file which is created after compiling C source files. In this case I converted .class file to array in C (using hexedit program). When I am (using IE ) browsing my serwer Html site is loading corectly and *.class file is send from serwer also corectly (define arrays are transfered corectly) but applet is not initiated. When I am runnig Java console I can see this:
error: java.lang.ClassFormatError: Truncated class file
When I am runnig the same site with the same class file on my PC everything is ok.
I would be greatfull for any help. Thx. (sorry for my English :P )

Not too familiar with native compilation, which I believe you are trying to accomplish here. It would appear that you don't have any problems running your applet, more or less running it after being converted to legacy code. Try the "native methods" forum under "Fundementals/Key Classes", this may be helpful. Sorry for not being too helpful.

Bad magic number in super-block while trying to open /dev/sda2

hello,
So I've a linux partition, and then I wanted to install a Windows copy. I've only 1 HDD with differents partition into it:
sda5 (swap)
sda6 /user
sda7/var
sda8 / (which contain the boot and root of course)
sda3 /home
sda2 NTFS (windows xp)
So, as I had linux installed before windows, I had to make my sda2 NTFS (87) under my cfdisk. Then, I went to install windows, everything worked fine, windows booted with his boot system, but I had to restore grub with my archlinux live cd:
grub> find /boot/grub/stage1
grub>root (hd0,7)
grub>setup (hd0)
everything worked successfully, my grub loaded till while booting archlinux I got this error:
couldn't find ext2 superblock, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sda2
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
What I tried is to run the e2fsck -b 8193 /dev/sda2 but right after that, I thought about it, this isn't linux partition so of course, the superblock isn't the same as they are ntfs type from widnows?
I've read on some forum but unfortunately didn't solve my problem, if anyone has any suggestion before I format the NTFS partition, I'd really appreciate it.
best regards, maz

what I think it happened, is that after installing windows your partitions numbers got twisted a bit. What you have to do is to edit /etc/fstab, and check out your linux and swap partitions mounting entries, I believe you just have to change the number of /dev/sda[number] coresponding to your linux partition in fstab
If you can't solve it, post the output of
fdisk -l
and
cat /etc/fstab
Last edited by I'mGeorge (2011-07-21 20:53:31)

Java.lang.ClassFormatError: HTML (Bad magic number)

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