In this short tutorial, I will show you how to download a bootable ISO or IMG directly to a USB stick or SD card. This is useful in many situations such as creating a live usb on a computer without alot of disk space, or just creating a linux installation disk. The instructions are below:
- Find the URL of the ISO or IMG to download
- Open a terminal
- Type the following command:
df -HYou will get the following output or something similar:
Filesystem Size Used Avail Use% Mounted on udev 2.0G 0 2.0G 0% /dev tmpfs 388M 6.7M 382M 2% /run /dev/sda1 311G 4.1G 292G 2% / tmpfs 2.0G 250k 2.0G 1% /dev/shm tmpfs 5.3M 4.1k 5.3M 1% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 388M 13k 388M 1% /run/user/120 tmpfs 388M 25k 388M 1% /run/user/1000 /dev/sdb1 11G 4.0G 6.8G 37% /media/ubuntu/PATRICK /dev/sdb2 5.0G 1.2G 3.8G 24% /media/ubuntu/Stuff
- Find your USB drive in the list. In my case, my USB has two partitions: PATRICK and Stuff. Find it on the list, and look for the text starting with
/dev/. Ignore the number at the end. Remember the path. In my case it is
Type the following command:
curl URL_OF_ISO_OR_IMG |sudo dd of=USB_PATH
- Replace URL_OF_ISO_OR_IMG with the URL you found in step 1.
- Replace USB_PATH with the path you found in step 4.
- Warning: This will wipe the drive you say for the USB path. Be careful.
- The final command will look something like:
curl http://releases.ubuntu.com/15.10/ubuntu-15.10-desktop-amd64.iso |sudo dd of=/dev/sdb
- Wait for the command to finish
- You are done. You can now boot to the USB drive if you wish.