Trying to start the server with the command "./cardbox-shared -d" I get the message "file not found". The listing of files in the server's directory shows "cardbox-shared is there. On previous installations I had never this problem.
I’m far from a Linux expert (on the contrary…), but I recently did a Cardbox/Cardweb installation on a Linux server.
I encountered a few problems (I can remember also the one you mentioned) which I wrote down in a Cardbox/Cardweb-installation-document for Linux.
I would be happy to share this with you. Just send me an e-mail (email@example.com) and I’ll send it to you (and of course if anyone else is interested just e-mail me as well). Mayebe it can be of help.