eject - eject removable media
$ eject
mount NTFS filesystem
sudo mount -t ntfs-3g /dev/sdb1 /mnt/usbflash/ -o force
To mount the ISO image file.iso to the mount point /media/cdrom use this :
$ mount -o loop -t iso9660 file.iso /media/cdrom
$ dd if=/dev/cdrom of=isofile.iso