[Openstack] [openstack][neutron] mounting cdrom image in nova boot

Gary Kotton gkotton at vmware.com
Thu Oct 1 07:42:47 UTC 2015


Hi,
For the vCenter driver is is done by booting an instance from an ISO. That is:

  1.  Upload your ISO to glance
  2.  Use that image when booting

Then you can for example connect to the console and install from the ISO.
Thanks
Gary

From: Murali R <muralirdev at gmail.com<mailto:muralirdev at gmail.com>>
Date: Wednesday, September 30, 2015 at 11:22 PM
To: "openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>" <openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>>
Subject: [Openstack] [openstack][neutron] mounting cdrom image in nova boot

Hi

Is there an easy way to mount a cdrom with iso image in nova boot? It is so simple in vcenter or virtual box or hyperv, but I could not find a good way with nova/neutron even in kilo. Closest I found is like this

https://access.redhat.com/solutions/1225473<https://urldefense.proofpoint.com/v2/url?u=https-3A__access.redhat.com_solutions_1225473&d=BQMFaQ&c=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEs&r=VlZxHpZBmzzkWT5jqz9JYBk8YTeq9N3-diTlNj4GyNc&m=Uw1xyqQ_JJv_UfrGSnnkS8fAa_EgoCkSwrEed9_zxYE&s=pqv9iKSgWDVMKx8sQyoKwhpTcKwW9kyE4dKeWDBe4PA&e=>

The problem with that approach is you need a block device created from image to use the command mounting as /dev/vdb and minimum size of that block device is 20gb. Also it cannot be easily unmounted later. If there is a way to mount cdrom device type directly in nova boot. I am sure I am not the first person to think of this.

Other failed attempts
https://ask.openstack.org/en/question/42791/boot-from-iso-install-to-volume-reboot-from-volume/

Thanks
Murali
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