Things are actually a bit worse with the Ubuntu 20150325 amd64 image, after clicking on restart you end up with just a black screen and no key combination will bring up a TTY or complete the reboot process, so about the only thing you can do is eject the disc and perform a hard reboot.
Things are actually a bit worse with the Ubuntu 20150325 amd64 image, after clicking on restart you end up with just a black screen and no key combination will bring up a TTY or complete the reboot process, so about the only thing you can do is eject the disc and perform a hard reboot.