Ran into a major snag tonight after updating a machine to Cloudmin 6.3. When I try to create a New Empty system, it will not boot the CD image if the hard drive is set to VirtIO. I am using LVM images for the VM's hard disk, maintained by Cloudmin. If I set the Disk Driver to regular IDE, it works.
This just broke with the update to 6.3. I had just created some VMs yesterday on the same machine with the VirtIO driver.
I've messed around with setting boot methods, nothing. Finally got a VM installed by creating it with the IDE driver, then removing the disk, adding another disk, changing it from /dev/hda to /dev/vda, and then it works.. but I'm not sure it really is using the faster disk driver.
This is a show-stopper!