Moving from CentOS to Ubuntu or fresh install?

[johndoe]

Hi all, was wondering what's the general advice regarding moving an existing NagiosXI installation from CentOS to Ubuntu.

Would it be easier/best to:

A) Move the installation from CentOS to Ubuntu
B) Install from scratch on Ubuntu and move the data only

In the best case can any of the mods point me on the right direction of documentation regarding which steps to follow?

[lmiltchev]

We do not support Nagios XI on Ubuntu:

http://support.nagios.com/wiki/index.ph ... tributions

If you did this, you would be on your own, in regards to support.

[johndoe]

Damn, was expecting NagiosXI to be distro-independent now that's a stab in the heart...
Any predictions in to when this could be supported? I guess I'll have to stick with CentOS on that box then although all our other machines will be migrated to Ubuntu, great Nagios.. Great..

[scottwilkerson]

As of right now, it has at most been "discussed", I would not expect to see an Ubuntu distribution in the very near future, however, longer term one is likely to emerge.

[johndoe]

Ok, going back to the original question now on centos, what do i need to migrate from one machine to the new install? any pointers?

[scottwilkerson]

Here is our doc on backing up and restoring

http://library.nagios.com/library/produ ... -nagios-xi

One thing to note is that the doc references .zip files but newer versions of XI may use .tar.gz files.

[johndoe]

Code: Select all

[root@host ~]# cat /etc/issue
CentOS release 6.3 (Final)
Kernel \r on an \m

[root@host ~]# uname -a
Linux host 2.6.32-279.9.1.el6.x86_64 #1 SMP Tue Sep 25 21:43:11 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@host ~]# arch
x86_64
[root@host ~]# /usr/local/nagiosxi/scripts/restore_xi.sh /root/1350401907.tar.gz
arch: invalid option -- 'm'
Try `arch --help' for more information.
Error detecting architecture.
[...] Removed the -m manually [...]
[root@host ~]# /usr/local/nagiosxi/scripts/restore_xi.sh /root/1350401907.tar.gz
Error detecting architecture.
[...] Removed the whole case check and it worked kind of... [...]
Starting ndo2db:/usr/local/nagios/bin/ndo2db: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No such file or directory
 done.
Starting nagios: done.

===============
RESTORE COMPLETE
===============

I believe the latter "Error" is due to the kernel tweaks that are needed according to the faq's though

[scottwilkerson]

I'm sorry about that, that is a bug you found.

if you can edit /usr/local/nagiosxi/scripts/restore_xi.sh changing line 35 from

Code: Select all

arch=$(arch -m)

to

Code: Select all

arch=$(uname -m)

This should resolve it, and you should be able to run it.

We have this fixed for the next release.

[scottwilkerson]

As for the libmysqlclient.so.18 error, this machine does have Nagios XI installed on it already right?

[johndoe]

yes it does have it installed, it's a brand new kvm guest