我按照https://gist.github.com/PartTimeLegend/5328700操作，但出现如下错误：</p>
Loading new virtualbox-5.0.14 DKMS files...
First Installation: checking all kernels...
Building only for 4.2.0-42-generic
Building initial module for 4.2.0-42-generic
Done.
vboxdrv:
Running module version sanity check.
Error! Module version 5.0.14_Ubuntu for vboxdrv.ko
is not newer than what is already found in kernel 4.2.0-42-generic (5.1.2).
You may override by specifying --force.
vboxnetadp.ko:
Running module version sanity check.
Error! Module version 5.0.14_Ubuntu for vboxnetadp.ko
is not newer than what is already found in kernel 4.2.0-42-generic (5.1.2).
You may override by specifying --force.
vboxnetflt.ko:
Running module version sanity check.
Error! Module version 5.0.14_Ubuntu for vboxnetflt.ko
is not newer than what is already found in kernel 4.2.0-42-generic (5.1.2).
You may override by specifying --force.
vboxpci.ko:
Running module version sanity check.
Error! Module version 5.0.14_Ubuntu for vboxpci.ko
is not newer than what is already found in kernel 4.2.0-42-generic (5.1.2).
You may override by specifying --force.
depmod.....
DKMS: install completed.
vboxweb.service is a disabled or a static unit, not starting it.
Job for virtualbox.service failed because the control process exited with error code. See "systemctl status virtualbox.service" and "journalctl -xe" for details.
invoke-rc.d: initscript virtualbox, action "restart" failed.
dmesg发现错误：
[23970.809479] Request for unknown module key 'virtualbox: b2b55b754f3bb6a535be36ff514e9e174b01bfda' err -11
[24080.976410] Request for unknown module key 'virtualbox: b2b55b754f3bb6a535be36ff514e9e174b01bfda' err -11
[28028.539569] Request for unknown module key 'virtualbox: b2b55b754f3bb6a535be36ff514e9e174b01bfda' err -11
我的 virtualbox 安装日志文件：
https://drive.google.com/open?id=0B9Z0DTPHWdIVVXk5VWQxcE5XQ2c
我搜索了很多并尝试了很多，但直到现在还没有解决方案。如果有人可以在这里帮助我会很好:) 非常感谢！