ubuntu16安装vbox

ubuntu16 安装vbox5.0
sudo /sbin/rcvboxdrv setup 提示
Stopping VirtualBox kernel modules ...done.
Uninstalling old VirtualBox DKMS kernel modules ...done.
Trying to register the VirtualBox kernel modules using DKMSERROR (dkms apport): kernel package linux-headers-4.4.0-21-generic is not supported
Error! Bad return status for module build on kernel: 4.4.0-21-generic (x86_64)
Consult /var/lib/dkms/vboxhost/5.0.20/build/make.log for more information.
...failed!
(Failed, trying without DKMS)
Recompiling VirtualBox kernel modules ...failed!
(Look at /var/log/vbox-install.log to find out what went wrong)

make.log内容
DKMS make.log for vboxhost-5.0.20 for kernel 4.4.0-21-generic (x86_64)
2016年 04月 29日 星期五 12:00:59 CST
make: Entering directory '/usr/src/linux-headers-4.4.0-21-generic'
Makefile:670: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
LD /var/lib/dkms/vboxhost/5.0.20/build/built-in.o
LD /var/lib/dkms/vboxhost/5.0.20/build/vboxdrv/built-in.o
CC [M] /var/lib/dkms/vboxhost/5.0.20/build/vboxdrv/linux/SUPDrv-linux.o
gcc: error: unrecognized command line option ‘-fstack-protector-strong’
scripts/Makefile.build:258: recipe for target '/var/lib/dkms/vboxhost/5.0.20/build/vboxdrv/linux/SUPDrv-linux.o' failed
make[2]: *** [/var/lib/dkms/vboxhost/5.0.20/build/vboxdrv/linux/SUPDrv-linux.o] Error 1
scripts/Makefile.build:403: recipe for target '/var/lib/dkms/vboxhost/5.0.20/build/vboxdrv' failed
make[1]: *** [/var/lib/dkms/vboxhost/5.0.20/build/vboxdrv] Error 2
Makefile:1396: recipe for target '_module_/var/lib/dkms/vboxhost/5.0.20/build' failed
make: *** [_module_/var/lib/dkms/vboxhost/5.0.20/build] Error 2
make: Leaving directory '/usr/src/linux-headers-4.4.0-21-generic'
要怎么解决啊 研究好长时间了

是不是vbox有问题，重新下载一个试试，
www．virtualbox.org/wiki/Linux_Downloads

如果原来有系统需要保存的话，分区的时候只能选择手动分区的，将用来安装ubuntu的硬盘空间分成3个区，一个ext分区，用来挂载/boot目录，100m左右就可以了，再分一个ext分区，用来存放系统文件，挂载根（/）目录，还有一个swap交换分区，相当于win系统的虚拟内存，然后继续安装就可以了