virtual machine manager start with error:unable to open disk path /dev/sr0: No medium

[xtcsin]

virtual machine manager start with error as follows:
Error starting domain:unable to open disk path /dev/sr0: No medium found

details:
Error starting domain: unable to open disk path /dev/sr0: No medium found

Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/engine.py", line 959, in asyncfunc
vm.startup()
File "/usr/share/virt-manager/virtManager/domain.py", line 1128, in startup
self._backend.create()
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 330, in create
if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: unable to open disk path /dev/sr0: No medium found

[mpustel]

You have the cdrom connected so the vm expects a disk to be mounted.

Here is how you fix.
1. click on the icon for vm hardware details
2. under CDROM click disconnect button (toggle to connect)
3. go back to vm and start

That should fix your problem. Remember to connect when you need to mount a cd disk.

Have fun.

[marcosaluzzo]

Hello mpustel,

I have exactly the same problem. Running Fedora 15. However I am having trouble finding the icon for vm hardware details. Could you point me in the right direction? Thanks

[ganasubrfed]

Open Virtual Machine Manager -> double click on your VM guest -> click on a blue exclamation icon below menus, near "show the graphical console"

You will see all HW components, select IDE CDROM 1 and click on disconnect.


- Ganapathy Santhanam

[nitishrawat]

I am getting the same error message when trying to create a new VM

In my HW components... IDE CDROM 1 is not listed...

Please tell what to do