Shared Folders cannot be mounted after ubuntu is installed in VirtualBox.

Shared Folders cannot be mounted after ubuntu is installed in VirtualBox.

It has been almost a year since I installed ubuntu12 with VirtualBox4.2.12. However, the shared folder of the host cannot be mounted during this period, even if the "Enhancement package" is installed. I always thought it was Because ubuntu was not configured. Some people on the Internet said that it was because the kernel header file was not installed. As a result, the peripheral modules of the kernel cannot call the kernel function.

Later, I carefully observed the installation process of the "Enhancement feature package" and found that there was such a record. I did not find it until I was careless...

Now that you have found the reason, install the headers of the kernel. I searched a lot on the Internet to explain how to install kernel-devel. This version is not suitable for ubuntu, run the following command to install the headers of the kernel:

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