OpenSUSE Tumbleweed kernel update as of 3/31/2016 does not boot to the UI anymore. This was observed on VirtualBox 5.0.16. Workaround is to pass iomem=relaxed to the kernel, see below for details. Reboot the machine. During the boot-up press e at the screen below. Look for the line with linux and add iomem=relaxed Reference: https://forums.opensuse.org/showthread.php/514436-X-server-not-starting-after-update
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