My goal is to give this livecd to show to my doctor friends that there's a program etc.
I guess I have to make another virtual machine and install this livecd so I'll check if it works.
This error is specific and happen only when you run the system from LiveCD
[Sun Oct 30 23:13:21 2011] [error] [client 127.0.0.1] Symbolic link not allowed or link target not accessible: /var
LiveCD, although it look like an installed system , is really different from an installed system, because need to merge together two layer: one read-only layer (which really is all software available on the CD) and oneread-write layer which is temporarily built in RAM memory.
Without going into technical details, for security reason the web server setup doesn't allow to use "symbolic links" pointing to the web page tree. Unfortunately "symbolic links" actually are the only way to have a working LiveCD.
So, if you distribute the LiveCD and your friends are going to install it, they will have no problem.
Otherwise may be
it is possible to change the webserver setup, to point to /union/var instead of /var and may be
it could be possible to run the system from a LiveCD, but I'm not an expert about web servers.
Also, I believe that if you, or your friends, want to perform a serious test, you might need to save some application data...
Therefore I would suggest a PCLinuxOS installation directly on a USB stick, say 8 Gb, which will work exactly like an hard disk installation. (may be a little slower, but not that much).