Okay, since pendrivelinux is not working, use the Ubuntu computer to create the USB device instead.
1.
Boot up Ubuntu, press CTRL + ALT + T to open a terminal and then run the following commands.
sudo apt-get update
sudo apt-get install aria2
aria2c -x5 'http://cdimage.kali.org/kali-2016.1/kali-linux-light-2016.1-amd64.iso'
2.
Next, disconnect the USB device from the computer and then run the following command to list your disk drives:
lsblk
The output should look something like this:
sda 8:0 0 93.2G 0 disk
├─sda1 8:1 0 4.3G 0 part [SWAP]
├─sda2 8:2 0 1K 0 part
└─sda5 8:5 0 88.9G 0 part /
sdb 8:16 1 29.7G 0 disk /media/mchid/external-storage
Then, plug the USB device into the computer and then run the following command:
lsblk
This should now list the device identifier for your usb device such as /dev/sdb, /dev/sdc, /dev/sdd, or something else.
As you can see here in this example, the USB device is listed as an 7.5GB drive at /dev/sdc
yours may be listed as something else!
sda 8:0 0 93.2G 0 disk
├─sda1 8:1 0 4.3G 0 part [SWAP]
├─sda2 8:2 0 1K 0 part
└─sda5 8:5 0 88.9G 0 part /
sdb 8:16 1 29.7G 0 disk /media/mchid/external-storage
sdc 8:32 1 7.5G 0 disk
└─sdc1 8:34 1 86.1M 0 part /media/mchid/otLfrQ46J7eGcYnz-1235-asdlfkj
3.
Your USB device should be listed as /dev/sdb, /dev/sdc, /dev/sdd, or maybe even /dev/sde. What ever it is listed as be sure to use the correct device for the following commands because these commands will erase all the data on the drive!
For this next example, I will use /dev/sdc
as an example, however, you may need to use /dev/sdb or something else!
sudo umount /dev/sdc*
If it says "not mounted", just ignore the message.
sudo mkfs -t vfat -I /dev/sdc
sudo -i
cat kali-linux-light-2016.1-amd64.iso > /dev/sdc
sudo -k
Reboot!
I just tested this method and this iso to verify it works as sometimes iso files won't boot unless you add syslinux but this is a newer iso and I have tested that it works fine.
Here is the SHA1Sum for the iso: 4132238042deba9e3bc1702afbdb1b4672b64bcb
Click here for more info.
This installs the kali linux "light" version which is lightweight and super fast. It's kind of ugly but you can change the desktop configuration to make it look cool if you want. All the kali linux tools are available and installed.
This uses the XFCE4 desktop instead of Gnome and is the same desktop used for Xubuntu and Ubuntustudio as well.