First, you'll need to find the device ID of your SD. You can find it by issuing fdisk -l in a terminal. Then you need to create the directory /usr/bin on it, and migrate the contents of that directory on your USB to it. The link I provided includes further instructions on how to properly modify your fstab.
You'll have to edit your fstab accordingly, hence the last command. Use my link and example from above. If Ubuntu has already mounted the SD, just unmount it with the file manager, or issue sudo unmount /dev/sd*. * being your drive letter.
Code:
sudo -s
fdisk -l
mount -t vfat /dev/sd*1 /mnt
mkdir -p /mnt/usr/bin
cp -R /usr/bin/* /mnt/usr/bin
nano /etc/fstab
Last edited by Joom,