Home > Storage > PowerFlex > White Papers > Using Dell PowerFlex with Linux KVM > Empty attach CD
When creating a new virtual machine, under the Boot Options menu on the left, there is an Attach CD option where the user can specify an ISO for booting (for OS installation). If the user checks the box and there are no entries in the drop-down, as seen in Figure 98, this means that no ISOs are available in any storage domains.
To resolve, follow the instructions in the section Image upload. Boot options can also be specified at the time of initial power on of the VM. If choosing that route, be sure to clear the Attach CD box, or OVM generates an error.