on my virtual pc installation i fixed the problem with the following steps:
1. sudo vi /etc/initramfs-tools/modules and add fbcon and vesafb
so my /etc/initramfs-tools/modules looks like:
2. sudo update-initramfs -u
3. sudo vi /etc/modprobe.d/blacklist-framebuffer
change the line "blacklist vesafb" to "# blacklist vesafb"
4. reboot and everything is fine