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Unable to run the NetBackup Java console jnbSA - java.lang.NoClassDefFoundError

Created: 28 Jun 2012 | 38 comments

I'm testing an install of NetBackup 7.5 on CentOS 6.2 x64 virtual machine. After the install i tried connecting to the java console from my linux or windows workstation without any luck.

With windows, i'm using xming and was able to connect to other hosts/applications. Trying to access jnbSA just gives me a gray screen and quits.

For linux, i'm connecting from a Gnome desktop (ssh -X user@host), set my DISPLAY variable and run jnbSA and get this error:

[root@netbackup-test bin]# echo $DISPLAY
10.8.1.54:0.0
[root@netbackup-test bin]# /usr/openv/java/jnbSA 

	Starting administration console version 7.5.
	The log file for this execution instance is
	/usr/openv/netbackup/logs/user_ops/nbjlogs/jbp.root.jnbSA.4604.log


DISPLAY environment variable is set to: 10.8.1.54:0.0
Console was started on:
	Linux netbackup-test.ccit.columbia.edu 2.6.32-220.23.1.el6.x86_64 #1 SMP Mon Jun 18 18:58:52 BST 2012 x86_64 x86_64 x86_64 GNU/Linux

Command line options were:
	/usr/openv/java/jnbSA

Starting administration console version 7.5.

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02, mixed mode)

java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)
	at java.awt.Window.init(Unknown Source)
	at java.awt.Window.<init>(Unknown Source)
	at java.awt.Frame.<init>(Unknown Source)
	at javax.swing.JFrame.<init>(Unknown Source)
	at vrts.common.utilities.CommonFrame.<init>(CommonFrame.java:75)
	at vrts.common.utilities.CommonFrame.<init>(CommonFrame.java:70)
	at vrts.nbe.BaseNBEFrame.<init>(BaseNBEFrame.java:83)
	at vrts.nbe.LoginFrame.<init>(LoginFrame.java:228)
	at vrts.nbe.JavaPresentationLayer.initiateLogin(JavaPresentationLayer.java:150)
	at vrts.nbe.AdminConsole.main(AdminConsole.java:57)

I've searched high and low and could not find a resolution to this problem.

Discussion Filed Under:

Comments 38 CommentsJump to latest comment

mph999's picture

I believe the issue is due to xming not netbackup.

I have similar issues - jnbSA works fine on the server, but have issues similar to described when using xming, to a PC etc ..

I get the same issue on all versions of NBU.

xming is not exactly supported, it is 3rd part software and not the fault of Symantec it causes issues - not that you suggested it was of course.

Unfortunately, I'm not aware of any fix. 

Martin

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
yhbg's picture

Thanks for the reply....

I'm trying to understand what changed with the versions of NetBackup that took this functionality away.  If I log on to the console I don't have this problem, but I nor my customers want to go to the computer room each time to launch the console.

Again this worked fine in the previous version of NetBackup.  I'm trying to understand if this is a java issue and configuration setting.

I'm not trying to place blame just looking for a solution.  In my troubleshooting the constants are putty, Xming and my Desktop.  The one thing that has changed is versions of NetBackup.

mph999's picture

Opps - this comment (above) was menat to be a response to 'yhbg' - I think he posted in the wrong thread.

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
mph999's picture

Hmm, now I think about it - this is more than the general xming issues you normally see.

This is TN I wrote, the issue is not the same, but it is similar in that it relates to x-server.

 

Preview Technical Solution 
 Content Entry Fields
 
   
Title
NBDBserv cannot be started via putty / NBU Services do not start
Problem

NBDBserv cannot be started via putty 
SOLUTION:/TROUBLESHOOTING STEPS:

On Suse / Redhat Linux customers may experience the described symptoms. if "Enable X11 forwarding " is set on the putty session.  This causes the DISPLAY variable to be set to localhost.

If the variable is unset, then, NB_dbsrv should start with no problem. Another option is to start one X server on the pc where the ssh session is run from.

Error
# nbdbms_start_server
Start ASA Server Failed! error code: 1
/usr/openv/db//bin/dbspawn -f "/usr/openv/db//bin/NB_dbsrv" 
@"/usr/openv/var/global/server.conf" @"/usr/openv/var/global/databases.conf"
The application 'dummy' lost its connection to the display localhost:12.0;
most likely the X server was shut down or you killed/destroyed the application.
DBSPAWN ERROR:  -80
Unable to start database server
Environment

Suse / RedHat Linux

Cause

NB_dbsrv supplied with NBU 7.0 (for Linux/ Redhat)  tries to connect to the X server at $DISPLAY on Linux (SLES)/ (RH).

Solution
Add
unset DISPLAY to /usr/openv/db/vxdbms_env.sh 
and
unsetenv DISPLAY to /usr/openv/db/vxdbms_env.csh

 

martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
mph999's picture

Sorry about the formatting ...

I know your not placing blame, I didn't mean to suggest that you were.

I'll have a look and see if we have seen this before.

martin

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
mph999's picture

Can't find any similar issue on the internal symantec db.

What is strange, is that I agree only NBU has changed, but I think many people must connect this way, without issue.

Would you be happy to log a call to see if Backline can help ?

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
yhbg's picture

Thanks again for the reply Martin.  I have submitted a ticket and was informed that Xming is not a supported product.  However, a co-worker has been working with someone else who indicated that they had seen this before but could not recall the solution.  They will attempt to replicate our configuration and test and then provide feedback.  It's been a week so I am continuing to research as well.

Thanks again....should a resolution be provided I will post.

falti.manullang's picture

Use XManager on your laptop/computer.

 

export DISPLAY=yourlaptop/computerIPaddress:0.0

 

example: export DISPLAY=192.168.100.10:0.0

Falti Manullang

 

 "If this post has helped you, please vote or mark as solution"

yhbg's picture

Thanks for the suggestion Falti, however, I am also restricted to freeware in this endeavor.

Marianne's picture

Why not install the Windows Java GUI on your desktop?

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

yhbg's picture

Hello Marianne,

Because of how we connect between our backup server and the database server this is not an option.  We use a private, direct connect, to send the data between to the servers.  We also have a standard naming convention that does not use the server name that NetBackup would normally use.

I've been presented with another possible solution, JavaInstallFiles and see if this resolves the issue of using Windows Java GUI.  If so I will post that as a possible solution.

Thanks....

yhbg's picture

As promised, my reply is that the Windows Java GUI product, JavaInstallFiles-x86, provided does work.  It installs quickly and easily.  There really isn't any configuration that needs to take place for this to work.  I did have to add an entry to iptables for it work but other than that so far so good.  I am running 7.5.0.3 on my server and this Windows Java version is 7.5 it still works.  Waiting to receive the 7.5.0.3 version if there is one.

This is not the same as the other Windows Java package I mentioned presented other connectivity problems that was downloaded directly from their website.  Still waiting on the details of where the package is available and how to gain access to it.

Still waiting to hear back on the other testing that is taking place as it relates to the use of Xming.  If a solution is provided again I will add that to this thread as well.

yhbg's picture

I have just been informed that the JavaInstallFiles-x86 has been extracted from the base package of 7.5 and not something I, the end user, can do or get for myself.

Again I apologize Paul for hijacking your posting.  I actually tried to delete my post and found that I could not so I deleted the text and started a new thread but somehow it all remained here.

Marianne's picture

You have certainly managed to create a lot of confusion....

You can always send a Private Message to one of the Community Trusted Advisors to delete posts for you.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

PolishPaul's picture

It seems like the documentation does not list all the requirements?

I had installed the "x Window System" but that didn't do it, we ended up installing fonts and Desktop:

  • yum install xorg-x11-fonts-100dpi xorg-x11-fonts-ISO8859-1-100dpi xorg-x11-fonts-misc xorg-x11-fonts-Type1
  • yum groupinstall Desktop

Is any of this listed as requirements anywhere? Are these requirements?

PolishPaul's picture

If i remember correctly, the Windows Java GUI did not work untill we insalled a GUI on the server itself.

BTW, xming works fine now.

mph999's picture

Hi Paul,

Excellent good job.  Apologies, I didn't have time to look at this again today.

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

Hi mph999,

Can you confirm why these requirements are not listed? Or are they not required in other cases? We've been looking at various documentation and it leads us in circles.

CRZ's picture

Hi Paul,

Speaking from a documentation standpoint, we don't have any because it's outside the scope of what we support.  Exporting the display is one of those things that is usually possible but we can't (officially) offer a lot of advice on as it falls into the "3rd party" arena.  I believe you have already experienced this response from support ("was informed that Xming is not a supported product.") (EDIT: Sorry, this was the other poster and not you - but were you to contact support, you'd certainly receive this same response)

Martin's really gone above and beyond here, but he does that.  ;-)

If you've seen documented requirements from us, I'd love to see them because as far as I know we don't really have any for the current NetBackup versions - and don't intend to have any.

PolishPaul's picture

I'm sorry but i find this unacceptable as an answer because you DO list system requirements for installing NBU. You documentation installation requirements and specifically goes over the steps on launching the Java client but does not mention what is required to make it work. One assumes that the installation of the product would provide the functionality!

Let me refer you to your own documentation:

http://www.symantec.com/business/support/index?pag...
 

Pate 32 lists requrements for a Unix system.

Then on page 69 you have a section called "How to configure the window manager for the Java
Interface (NetBackup-Java compatible platforms)". This section tell me NOTHING about how to configure a windows manager which is exactly what was needed!!!

If the documentation simply stated something like "To use the Java console, you will need to first configure your system with an X Windows manager etc..." would have saved us and many other users a lot of time. For the 100's and 100's of pages of documentation you provide, i find the lack of this information stunning.

Additionally, this is no way a 3-rd party arena. This is fundemental OS / Software requirement issue and is VERY relevant to installing your software.

Also, this thread has deviated from my original question as this is NOT an xming issue.

Let me reiterate: When following your documentatino on installing NBU and using the Java console, it does not work. Can someone confirm for me please, that they can do an install of NBU and get the java console working without insatlling X Windows System or a Desktop environmnet on the server?

EDIT:

Also the Java console did not work locally until the system was configured correctly so this isn't related to the console being exported... There was no indication of an error in the install. I'm simply asking what requirements are needed to install your product!!!
 

mph999's picture

OK, how about this ...

I will contact the author of the user guide and ask if they can add something like you suggest :

"If the documentation simply stated something like "To use the Java console, you will need to first configure your system with an X Windows manager etc..." would have saved us and many other users a lot of time. For the 100's and 100's of pages of documentation you provide, i find the lack of this information stunning."

 

I think we should all stay friends, :o) 

 

... but maybe we will disagree,

If you run jnbSA on the master server, will say that it will work, and if not, we will fix it.

Additionally, this is no way a 3-rd party arena. This is fundemental OS / Software requirement issue and is VERY relevant to installing your software.

It is a 3-rd party arena, if you run jnbSA on the master, it will work (if not, we will fix it) - if you (or I) choose to use a 3rd party product to pull the display across to the other machine, that is your (and my) choice - we do not promise it will work.

But ...

We do not support xming/ exceed etc ... and this is what is being used to pull the display across to another server.

 

Now, I am not an expert on x-windows, but I understand it works like this :

If this does not work, we have no obligation to fix it ...  I have tried to find some answers for you, but if they are not in out database, there is little I can do.

You ask ...

"Let me reiterate: When following your documentatino on installing NBU and using the Java console, it does not work. Can someone confirm for me please, that they can do an install of NBU and get the java console working without insatlling X Windows System or a Desktop environmnet on the server?"

Yes, I can confim this.

I have installed NBU on Solaris/ Redhat / HP / Suse (and windows), evert version from 5.1 to 7.5 and as far as I remember jnbSA runs fine on the master.

These have been on base OS installs, with the OS not always up to date with patches.

I will be honest, when using xming to pull the display across from a solaris server to a windows server I have seen issues, like drop downs not quite working correctly with the mouse, and have in use the cursor keys  - but it has been useable.

As the display works fine directly on the master, the only cause of the strage behavior on windows, is the fact I am using xming.

Please confirm -  

I am getting a bit confused, when you see the jnbSA not starting, is this when you run jnbSA on the master server directly, or, when you are exporting the display to another server.

If you have had to install extra packages on the master server to make it work, then I have mis-understood you.

I think (but I am asking you to correct me if I am wrong) that you are using xming to pull the display across to a different server than the physical master and that you had to install extra packages on this non-netbackup master.

Perhaps here, we just have a mis-understanding of exactly the correct details.

Sure, if you are talking about only the master server, then I would agree that perhaps out documentation could be clearer.  

As mentioned, I have installed many different versions on Solaris/ Linux/ Suse  and jnbSA has always worked.

I think if we can take a step back and just confirm a few things ...

Martin

 

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
mph999's picture

Thank you Chris for the kind comments.

Hi Paul,

Chris has really answered the question.

We don't 'generally' hold documentation on products we don't support.

As we have a TN that mentions putty / x-server, I mentioned to log a call, if we know the issue I am sure the TSE will assist, but as it is 'unsupported' we will be unable to  investigate in detail.

Let me defend Symantec here ...

We have to draw a line in what we support - offically this is NetBackup.  Recently I narrowed an issue down to a firewall dropping packets, and causing slow backups.  I was then expected to provide a cause as to why the firewall was doing this  ... well, that will be an issue and I had decline.  After all, if had a go and messed up the firewall I'm not going to be too popular.  NetBackup TSEs are not Network Engineers ...

Let's look at it another way - you are waiting for a call from a TSE to fix NBU.  You will not be too impressed if the reason the TSE has not called you back, is because he is trying to fix somebodies network and therefore has not got time to fix your NBU issue, and provide the support for NBU that you have paid for.

After all, if you HP server broke, you would call HP, not Microsoft ...

Unfortunately, because NBU will show the error if there are network issues, os issues, tape drive issues etc ... we get the blame for everything, which really is not very fair.

I'm just waiting for the the call "My car won't start, what do I do ...."  :o)

Martin

 

 

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

So what you're saying is you don't have documentation for your own product? This is exactly how everyone else around me is interpreting your response.

I'm NOT ASKING about unsupported products - i'm asking for REQUIREMENTS for your product! We're all shocked here to read such answers. Seriously.

I've followed the documentation to your product and the feature it describes doesn't work. Again, i underline, i'm referring to NBU (java console) not working, not xming or anything else.

EDIT:

Let me ask you this, you said earlier:

I have similar issues - jnbSA works fine on the server, but have issues similar to described when using xming, to a PC etc ..

What did you do to make jnbSA work on the server.

And once again, please address my original post, not the user who posted here by accident!

mph999's picture

(I posted another reply - further up the thread)

When ever I have installed NBU on a Unix or Linux server, and have then run jnbSA, it has worked.  I have never had to do anything additional to make it work, and that, is the honest truth.

Editted to add ... ' I haven't ever installed on CentOS'

My comment about a few issues when using xming was when I was referring to the other post that was added to this thread in error.

Martin

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
mph999's picture

Interesting that somebody has marked me down for simply explaining that we 'support' NetBackup and not other 3rd party products .. unbelievable.

I think people need to read support contracts and understand that if the problem is caused by xx you go to company xx for support.  If it is caused by yy you go to company yy for support.

Please note, in the post directly above I was talking 'in general' I was NOT meaning to refer to the exact Java issue in this thread.

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

It is because you're not addressing the question but defending yourself. Skip it next time.

mph999's picture

AND ...

From the original post ...

I'm testing an install of NetBackup 7.5 on CentOS 6.2 x64 virtual machine. After the install i tried connecting to the java console from my linux or windows workstation without any luck.

With windows, i'm using xming and was able to connect to other hosts/applications. Trying to access jnbSA just gives me a gray screen and quits.

For linux, i'm connecting from a Gnome desktop (ssh -X user@host), set my DISPLAY variable and run jnbSA and get this error:

 

So from this, I understand that you are running jnbSA on the Linux or Win server and are not getting the display,

Please correct me if I have understood ths part wrong.

I don't see that you say anywhere that running jnbSA when logged into the CentOS server fails.

OK ...  

Now you mention this ...

****************

 

It seems like the documentation does not list all the requirements?

I had installed the "x Window System" but that didn't do it, we ended up installing fonts and Desktop:

  • yum install xorg-x11-fonts-100dpi xorg-x11-fonts-ISO8859-1-100dpi xorg-x11-fonts-misc xorg-x11-fonts-Type1
  • yum groupinstall Desktop

***************************

When did you install this, on the Linux server of on the CentOS server ???

 

I have to go to bed now, it is very late here in the UK.  I will check this thread tomorrow.  

 

Lets just confirm the exact situation, what works from which server.  I want us to all stay friends ... :o)

 

1.  Does jnbSA work from the CentOS server.  

 

Thanks,

 

Martin

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

I think half the frustration comes from the original issue not being addressed in this thread (instead the accidental poster was addressed) and the constant explaining of what support can/should do. Most of us in this industry started in support so we (I) know exactly what you mean about the boundaries of what is supportable, however, pointing this out continuously instead of getting to the issue is insulting.

So to pick up on the issue itself:

NBU was installed on CentOS (Red-Had equivalent) server installation (no GUI). Pretty standard server install. NBU was installed but i'm unable to get the Java console working at all. It was only after installing various additional (GUI) software (listed above) that allowed me to use the Java console. This is on the server itself, or any host connecting remotely.

mph999's picture

Right, now I understand.

(1)

Only now is it clear that jnbSA didn't work on the CentOS machine.  

(I have just potted you added this info below Chris' post, I didn't see that part last night, no matter, it is clear now).

"I'm testing an install of NetBackup 7.5 on CentOS 6.2 x64 virtual machine. After the install i tried connecting to the java console from my linux or windows workstation without any luck."

Previously, this led me to believe you were running the Java console remotely via an x-server, hence the direction the post went in.

(2)

"It is because you're not addressing the question but defending yourself. Skip it next time."

No, I couldn't address a question that I didn't understand.  Now you have made the issue clear I understand the question and can adress it (see 4).

(3)

"and the constant explaining of what support can/should do. Most of us in this industry started in support so we (I) know exactly what you mean about the boundaries of what is supportable, however, pointing this out continuously instead of getting to the issue is insulting."

 

I appreciate that you personally may understand these details.  However, this is a public forum and therefore if I or someone makes a comment about something not being supported, it is not unreasonable to make sure it is explained very clearly why, especially when my name is against the post.

Unfortunately, the vast majority of people I speak with seem to think that we are to blame for every fault on their system, and the same is true of this forum, the vast majority are unable to grasp that different support 'groups' should be handling different parts of the NBU environment.

However, if you persoanlly 'insulted' by my or Chris' comment than I am sorry about that, it wasn't directed at you, iit was directed at anyone who reads this thread.

(4)

I made the offer yesterday, that if this was not working on the CentOS server, which you have confirmed, I will raise it with the documentaion author.

I have no control over what is/ is not added, but I will make the request.

 

Martin

 

 

 

 

 

 

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

Given the confusion and length of this thread, i think i'll start a new one with very explicit details so we can focus on the issue of getting jnbSA working. Probably best to start fresh.

mph999's picture

No need, I understand the issue now,

I will find the best way to raise ths as a documentation request.

Kindest regards,

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
PolishPaul's picture

Since nobody else mentioned needing to install additional software (which i listed) to make this work and this thread is very confusing as we're talking about 3 differnet things here, i think its best to start a new thread. What i'd like to know is how to get this to work without the extras i just mentioned. The documentation issue may not be valid if these things are NOT required.

CRZ's picture

First, please accept my apologies for any confusion I may have introduced earlier in this thread by responding to the other fellow.

Now, to the bad news: CentOS is not a supported operating system for the NetBackup Java Console.

NetBackup (tm) 7.x Operating System Compatibility List (Updated June 29, 2012)
 http://symantec.com/docs/TECH76648

Please refer to the table on pages 63-65.

Again, I'm not saying it's impossible to get it to work - clearly you got it to work after jumping through a lot of hoops (and perhaps that's one of the reasons we haven't yet certified it or issued a statement of support) - but if you were to call us and open a case for this issue, once your TSE learned that you were attempting to run the console on an unsupported operating system, we would be forced to be the bad messenger and tell you that we wouldn't be able to offer any help on your unsupported configuration.  You might want to shoot that messenger, but it would not change the situation.

AND again, if you have any documentation in conflict with what I have shown you that running the console on CentOS is unsupported, by all means let me know and we'll figure out if I'm wrong or if the documentation is.

PolishPaul's picture

I looked at page 13 of this document and it says:

NetBackup provides server/client support of CentOS on the same corresponding versions of Red Hat Enterprise Linux beginning with Red Hat 5.2 and forward for client and Red Hat 6 for server.

So CentOS is supported because it is the same thing as Red Hat.

Looking at page 64-65, RHEL is a supported system. Notice this table does NOT contain CentOS because CentOS is considered RHEL. If the Java console was not supported on CentOS this table would include it in the list and specify "N" for not supported.'

In short CentOS = RHEL = supported.

mph999's picture

OK, this is getting us nowhere ...

How about, while Chris is figuring out what is what, I create a technote with the details of what you did to ge it to work.

Let's call it a compromise ??

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805
 
CRZ's picture

With all due respect, you have misinterpreted our documentation - and continue to misinterpret our documentation - based on an erroneous assumption.

CentOS is NOT the same thing as Red Hat.  If it were, it would not be called CentOS; it would be called Red Hat and you would be paying for it.  We would list them in the same table.  We do not do so because they are not the same.

Red Hat Enterprise Linux (pages 41-43 of the Operating Systems Compatibility List) is listed in a section separate from CentOS (pages 13-14) because they are NOT the same, and NetBackup does not treat them the same.  We list them separately here; they are listed separately in other tables.

If you compare the server/client tables for these two, you will see right away that while some versions of RHEL ARE supported as a master server, NO versions of CentOS are supported as a master server.  This is one of many examples of something supported in RHEL that is not supported in CentOS.  Another is the admin console - some interfaces are supported for some versions of RHEL; no interfaces are supported for ANY version of CentOS.  This is why it is not listed in the table...the omission of CentOS from the supported OS table for admin consoles means *it is not a supported OS*.  It is not covered by any other Operating System's entry.  If it's not listed in the table of supported operating systems, it is because it is not a supported operating system.

There's a lot of repetition up there and I apologise for that, but I'm really not sure how I can be any more clear about this.  You have been attempting to run under an unsupported configuration and while I'm delighted you got it to work, I can't let you continue to assert factually untrue statements about our documentation without calling you on it.

mph999's picture

In defense of Paul, I believe the way the documentation is presented can be very very confusing, certainly I and my colleagues sometimes have to read it several times to work out what is going on.

In fairness, if Paul has mis-understood the documentation, he didn't do it on purpose.

The golden rule that I use, is that 'something' isn't listed in the compatability guides, then it isn't supported.

As Chris has now confirmed CentOS is 'unsupported' as a master server, although you have managed to get it to work, I would not recommend that you continue to use it.

If you need support on it, then I think even though a frontline engineer may try their best, if the issue is one that would require backline /engineering this would almost certainly be refused, while could leave you with a very big problem if it is a live system.

Again, apologies, this thread did not quite go the way it should, due to mis-understandings.

Martin

 

Regards,  Martin
 
Setting Logs in NetBackup:
http://www.symantec.com/docs/TECH75805