Nagios Support Forum

Posted: **Tue Feb 07, 2012 8:48 am**

This was an upgrade from 2011R1.7 (that may make a difference) to 2011R2.0. Install went fine except for sourceguardian failed.

At this point I have no access to PHP for nagiosxi. However, if I do ip_address/nagios I can see and manage the Core pages.

Tried with PHP 5.1 and failed, then removed 5.1 and upgraded to PHP 5.3 and failed.

Removed all of /tmp/nagiosxi folder and created it again and tried upgrade again, same failure.

/var/log/httpd/error_log says " PHP Fatal error: Call to undefined function dl() in /usr/local/nagiosci/html/includes/dbl.inc.php which of course is a reference to soureguardian.

Posted: **Tue Feb 07, 2012 11:02 am**

I think I had the same issue happen for me, and after some digging around, it looks like the upgrade script for whatever reason decided that it should unzip and install the 32-bit SourceGuardian module on my 64-bit OS/server. My logs were being "spammed" with the exact same dl() error as you are getting.

If you want to check if this is the case, SSH to the machine, and run this command:

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file /usr/lib64/php/modules/ixed5.3.lin

This will tell you the file type of the file, and if you have the same issue as me, the output will be as below

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ixed.5.3.lin: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, stripped

This shows that the library is a 32-bit LSB shared object, all wrong for our 64-bit OS.

What I did was simply just unzip the supplied zip files and manually replace the library.

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cd /tmp
unzip /tmp/nagiosxi/sourceguardian/ixed4.lin.x86-64.zip
cp ixed.5.3.lin /usr/lib64/php/modules/ixed.5.3.lin
apachectl restart

If you now run the 'file' command snippet above, you should see a message similar to the one below.

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ixed.5.3.lin: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped

As far as I can tell from some very quick debugging, this boils down to some problems with the /tmp/nagiosxi/upgrade script. This script executes some sub-scripts, one of which is the install-sourceguardian-extension.sh. The SG install scripts relies on some variables that are being set by init.sh, however, init.sh is never run by the upgrade script as far as I can tell, it seems to only be run by the install script, thus causes the issues with the SourceGuardian library.

The problematic bit is this part of the "install-sourceguardian-extension.sh", because $arch isn't being set before the script is run, and thus defaulting to extracting the 32-bit zipfile.

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if [ "$arch" = "x86_64" ]; then
   zipfile="sourceguardian/ixed4.lin.x86-64.zip"
else
   zipfile="sourceguardian/ixed4.lin.x86-32.zip"
fi

Hope this will fix the issue for you as well,

Regards,
- Asbjørn

Posted: **Tue Feb 07, 2012 11:43 am**

Asbjørn,

Thank you for digging into this.

I will be passing this on to our development team.

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