in is30, VM without HD or NIC Edit VM -> Boot Options -> Attach CD, attach something go to Run Once -> Boot Options, Attach CD is unchecked, but if you run the VM it will be booted with the original CD The Boot Sequence is all greyed out(like there's nothing to boot from), yet it boots from CD. OTOH if you add NIC, put CDROM as the first device to boot from, allow PXE boot as the second device. Run Once boots via PXE but if it fails it's still booting from CD (boot sequence is "greyed out HD, greyed out CD, PXE")
may be related to bug 1026306
*** Bug 1026306 has been marked as a duplicate of this bug. ***
Verified upstream in ovirt-engine-3.5.0-0.0.master.20140804172041.git23b558e.el6.noarch (rc1). Verification steps: 1. VM -> edit -> Boot Options -> Attach CD: CentOS-6.5-x86_64-minimal.iso (for example). 2. VM -> Run Once -> Boot Options: Results: Attach CD is checked and set to CentOS-6.5-x86_64-minimal.iso. Boot Sequence is enabled and can be changed. The VM then boots according to the boot sequence set in run once dialog.
RHEV-M 3.5.0 has been released