[one-users] Creating images how to

[Sharuzzaman Ahmat Raslan]

Hi all,

Alternative to Martin's way:

Launch virt-manager on any Linux system (you can install virt-manager on
CentOS)

In the virt-manager, create a new VM, customize the disk size, select the
CentOS installer ISO image, and start performing the installation.

Note where you save the virtual disk for this VM.

Once installation finish, you will have a fully installed VM. You will use
this virtual disk (usually qcow format) and upload it into Opennebula. This
is your gold image.

After that, you need to configure your VM template in Opennebula. Here you
need to define your NIC, memory, and point the disk information to your
gold image that you have uploaded. You need to know if you are using
persistence or non-persistence. Persistence will modify your gold image.
Non-persistence will create a clone of your gold image, and changes will be
written to that clone. That depends on your Opennebula storage architecture
too.

Amier, I'm Malaysian, and working in Cyberjaya.

If you want, maybe we can have a face-to-face knowledge sharing session, so
that we can discuss this further.

Thanks.













On Fri, Nov 8, 2013 at 6:09 PM, Martin Alfke <tuxmea at gmail.com> wrote:

> Hi Amier,
>
> we create Images in the following way:
>
> 1. create qcow2 disk:
> qemu-img create -f qcow2 base_centos.img 10G
>
> 2. fetch installer image:
> wget <centos mirror>/centos6/6/os/x86_64/images/install.img
>
> 3. install image:
> qemu-system-x86_46 -m 4096 -hda centos_base.img -cdrom install.img -boot d
>
> 4. post install vm preparation:
> qemu-system-x86_46 -m 4096 -hda centos_base.img
>
> Within image:
> install acpid (needed to reboot/shutdown vm from open nebula management
> node)
> install one-context package
>
> 5. upload image to opennebula
> attn: do not use sunstone for large images copied over network.
> copy image to open nebula management host (scp,..) and use local directory
> and image name.
>
> hth,
>
> Martin
>
>
> On 07 Nov 2013, at 18:21, Amier Anis <mymabma at gmail.com> wrote:
>
> > Dear Guys,
> >
> > I'm still new with opennebula. I would like to know how to create images
> for my 100 vm using centos 6.4. In the images i need to install a few
> component and add a few users.
> >
> > any ideas?
> >
> > Thanks you.
> >
> > Regards & Best Wishes,
> >
> >
> > .: Amier Anis :.
> > Mobile: +6012-260-0819
> >
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-- 
Sharuzzaman Ahmat Raslan
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