Earlier distros of Linux does not have the automount daemon (autofs). Users would have to mount USB drives themselves. Mounting the ‘drive’ actually means mounting the File System contained within the drive. Here’s how to go about :

First, make a directory in /mnt/ where the USB drive can be mounted to. This can be done by

mkdir /mnt/usb1

Next, make sure the USB drive is plugged in and mount it using :

mount /dev/sda1 /mnt/usb1

PS : If the system throws a privilege error, perpend sudo to the above commands.