Nagios XI vm install guide for Redhat

[gabrotherton]

Good morning,

I am looking for the document to install Nagios XI on a Redhat 6.6 VM. I have downloaded the .ova file to the server which will host the VM. However I have no idea how to tell Redhat to use the .ova file as the guest OS.

Thanks,
Gene

[jdalrymple]

Presumably what you mean to ask is how to use the NagiosXI VM installation with a KVM hypervisor?

http://edoceo.com/notabene/ova-to-vmdk-to-qcow2

[gabrotherton]

Yes, that is what I meant to ask

I'll get started with this and post questions if I run into something weird.

[hsmith]

Let us know if you need any help.

Thanks!

[gabrotherton]

The .ova extracted well enough and I found the disk image file. I started the Red Hat VM manager and selected the KVM image as the source. When I started the VM I got an error "No boot device found."

Is the .kvm file the entire VM image? Or do I need to install Red Hat as the OS first?

I'm confused as to what the next steps are after extracting the files from the .ova. Can I run the .kvm file on Red Hat's vm hypervisor?

Thanks.

[jdalrymple]

Having no experience with RHEV, what I can tell you is that in order to use the OVA on one of my KVM boxes I'd do the following (high level):

extract the vmdk from the ova
convert the vmdk to qcow2 using qemu image conversion tool (you could use the VMDK if you prefer)
create a new domain and attach the qcow2 disk image to that machine as the boot drive

That's it

I suspect that when you try to create a domain on RHEV it's a lot like creating a VM in VMware and it expects something like a vmx file (probably an xml file in your case) that defines the domain. You need to define the domain as you see fit and simply attach the disk in this environment.

Make any sense?

[gabrotherton]

I'll convert the vmdk to qcow2 and see what happens.

[jdalrymple]

Like I said - that's not explicitly necessary. Most modern builds of qemu will boot a .vmdk disk image.

Nonetheless let us know if you have further issue.

[gabrotherton]

I extracted the .ova file and found the file:

nagiosxi-2014r2.7-64-disk1.vmdk

which I believed to be the bootable image containing Nagios. Is this correct? My RHEL virtual manager says it cannot find a boot disk.

I believe there are more steps I need to take with this file. Or maybe I'm not setting up the virtual manager correctly.

[jdalrymple]

That most definitely is a bootable disk. It's not like an iso or anything, it is the system drive (e.g. "C drive") of your Nagios installation. Hundreds of people boot that disk image every day.

Are you most certainly configuring it as your root disk. Something like this:

Code: Select all

    <disk type='file' device='disk'>
      <driver name='qemu' type='vmdk' cache='none'/>
      <source file='/var/lib/libvirt/images/NFS/nagiosxi-2014r2.7-64-disk1.vmdk'/>
      <backingStore/>
      <target dev='hda' bus='ide'/>
      <alias name='ide0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>