I'm trying to install windows server 2012 R2 on a VM using virt-manager on centos 7. During the install it will not allow me to select the DVD drive (greyed out).

I tried the following command:

mount -r -t iso9660 /dev/sr0 /mnt/DVD/

The DVD mounted without error but there is only one file:


This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification.

So I tried the following command: mount -r -t iso13346 /dev/sr0 /mnt/DVD/

got this error: mount: unknown filesystem type 'iso13346'

Could it be that the DVD drive I'm using is too old? It was manufactured in 2003...


Don't specify a filesystem type; mount will figure it out (correctly).

And if you're trying to install Windows in a virtual machine, you do not need to (and should not) mount the image at all. Simply provide the path to the ISO when setting up the VM in virt-manager.

Virt-manager install media selection page

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  • That worked, however if I only have the DVD and no .iso do I have to make an iso file from the DVD? – prodigerati Jul 2 '15 at 16:48
  • No, you just point virt-manager at the DVD drive. – Michael Hampton Jul 2 '15 at 16:51
  • DVD option is still greyed out says "Media Unknown (dev/sr0)" – prodigerati Jul 2 '15 at 16:55
  • You have to actually click the radio button! – Michael Hampton Jul 2 '15 at 16:58
  • It will not allow me to. it's "greyed out"... not click-able.... – prodigerati Jul 2 '15 at 17:05

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