I've confirmed that the combination of linux-image (from above) and the initramfs-tools / initramfs-tools-bin from http://people.canonical.com/~apw/lp917135-precise/ result in a system booting and using hv_storvsc to handle the root device instead of ata_piix.
I've confirmed that the combination of linux-image (from above) and the initramfs-tools / initramfs-tools-bin from http:// people. canonical. com/~apw/ lp917135- precise/ result in a system booting and using hv_storvsc to handle the root device instead of ata_piix.
-M