To highlight jleung's comments, what is going on is that generation 2 VM's require UEFI to boot, inform the UEFI boot manager of the OS (via registration of values in the NVRAM). The Ubuntu installer does this at installation time. What jlaeung's describing is converting to "removal" mode.
I suspect that VM's should be installed w/ removal mode by default to support cloning operations. We currently do this on the Ubuntu 14.04 LTS UEFI cloud images. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1317695 Title: hyper-v: Unable to copy and boot Generation 2 Ubuntu 14.04 VHDs Status in “linux” package in Ubuntu: Confirmed Bug description: After creating a Generation 2 virtual machine, we are unable to shutdown the VM, copy the VHD and create a new Generation 2 virtual machine out of the VHD. It seems that once the copy out operation has occurred, the UEFI boot entry is not available on the file-system. This hinders scenarios where customers routinely copy VHDs to create new virtual machines. Root cause unknown as of now. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317695/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp