[Trisquel-users] Re : Multisystem doesn´t catch my USB

[lcerf]

Does the additional level in the file hierarchy actually matter to  
MultiSystem?

Anyway, you can from a terminal:
create the "usb" folder in /media:
$ sudo mkdir /media/usb
mount the filesystem of your pendrive (I assume below it is /dev/sdb1;  
'mount' would tell after it automouts) at /media/usb:
$ sudo mount /dev/sdb1 /media/usb


Since I proposed to do everything with 'sudo', you should then run with  
administrator's privileges whatever you do with MultiSystem (I have never  
used it).