My pcmanfm works well all the time; it can mount the usb storages and other partitions on the disk automatically.
But after I use the vbox, and enable the usb for vbox, my pcmanfm can't work well when I want to mount the usb storages and other partitions.
And I try this in root mode, it works well.
So, I think maybe vbox changed some user's rights for visiting the partitions. But I don't know how to change it back.
Could somebody help me? Thank you very much!