It works for me.  Just much slower than running natively on Windows.  Make sure you have 3D acceleration turned on in VirtualBox in the Display settings for your virtual machine.  You also need a decent graphics card on the native system for VirtualBox to use.  I have a NVIDIA GeForce GTX 970.  I've attached a screenshot of a CentOS 8 VirtualBox VM running Chimera 1.14 after fetching the "EMDB & fit PDBs" 1048 example.

That said, if Chimera works in Windows, just use Windows :-) 

    -- Greg

On 8/27/2020 4:38 AM, Smith Lee wrote:
Dear Greg,

Based on your advice, currently the chimera window can display. However by fetching a pdb from RCSB, the protein molecule cannot be shown by default, and for the Presets setting, the protein can only be shown in the all-atoms format.

In addition, after laoding a mrc map which can be shown very well in the windows version of chimera, this newly installed linux chimera cannot display the mrc map at all.

I amlloking forward to getting your advice.

Smith.