Hi all. I recently upgraded from a pentium G3240 in my home server (running Ubuntu Server 14.04 LTS) to a Xeon E3-1231v3. It is a headless install, so after working out a few kinks, the host os boots up great, recognizes the new CPU when 'cat /proc/cpuinfo' is run, and all the programs and stuff run great.
There is a VM on the machine, set to autostart, and it does in fact autostart, but the machine fails to boot past the GRUB installation selection. When Ubuntu is selected (over VNC connection) the screen goes to a single underline curser that does not blink at all, and will take no input. Virtualbox can power down the VM, and start it back up, but it results in the same frozen screen before loading anything.
I unregistered the VM and deleted it, and imported a backup export from a couple months ago. When I start the VM using 'sudo VBoxManage startvm Ubuntu --type headless' it says "VM "Ubuntu" has been successfully started" but when I try to ping or VNC it, it doesn't respond at all. When I try 'VBoxManage list runningvms' it returns nothing, and when I type 'VBoxManage list vms' it returns "Ubuntu" with the UUID. I am at a loss, I have nothing that I can troubleshoot that I can work with to figure out why the VM "successfully" starts up but then immediately fails.
I would love to NOT have to go in and rebuild the VM from the ground up...