Problem for the most 'experts: use folder sharing with iso created with remastersys

I created avirtual machineubuntuisothatI created.TherunregularlyinVMPlayerwithoutinstallation, Ialready uploadedthevmtools.
It worksbutif I try toshow himone ormore 'guest disk folders: nothing. Nottheoffice.Mountinthere 'nothing.
Initiallyit gave me theerror: unable to updaterun-timefoldersharingstatus: therewas an errormountingShared Foldersfile systeminside theguestoperating system
I can notovercome this obstacle....Alsothe installation ofa full discwrong. And'possible, otherwise, work around the problemin any way?
Thanksin advance.