This error can happen if an ISO in the DVD Drive is not available any more. In XenCenter, eject the ISO from the drive to resolve the issue.
To increase a Windows VM disk size you’ll first need to shut down the VM and then increase the disk size from XenCenter. When you boot back up into the VM, the extra space shows up as unallocated. All that needs to be done is the main partition needs to be extended.
Open up the Windows Disk Management Utility. You can do this by clicking on the start button, typing in disk management and hit enter. This will bring up the Disk Management program.
In disk manager, you should see the Unallocated space at the end of Disk 0, i.e. your main drive. Right click on your main partition (C:) and click Extend Volume. You will be presented with a wizard that will walk you through extending your disk.
Before increasing the VM’s disk size.
The unallocated space is the extra space that we added via XenCenter. Right click on the middle partition (C:), and click extend.
After were are finished extending the partition, we see that our main partition is about 8GB larger.
Recovery Mode can be helpful if you need to do certain task like operate on the VM with the disk unmounted or you need to reset a root password.
All of the following is done through XenCenter
To boot the VM into recovery mode all you have to do is
- Shutdown the VM
- Insert boot media i.e. (DVD, cd, iso image, etc.) into DVD Drive 1:
- Start VM in Recovery Mode. In the main menu click on VM –> Start/Shut Down –> Start in Recovery Mode
When the VM boots up it will boot off of whatever is in DVD Drive 1.
This assumes you have a NFS Share setup up. If you do not you can follow this link.
Open up XenCenter click on add storage device button on the top.
Select NFS iso and hit next.
Next we add the share location which in my case is 192.168.200.250:/nfs and hit Finish.
If all went well you should have a new NFS ISO repository