OCNG5: Step-by-step USB drive setup instructions for Linux

Up: OCNG5: Installation

1. Make sure you have 7z (7za or 7zr are fine, too) installed.
   We'll use 7zr in this example; usage of other tools is exactly the same as far as our operation is concerned.
   
   To install 7zr (on Ubuntu 12.04), run:
   

   sudo apt-get install p7zip

2. Download the image:
   

   wget -O ocng5-5.3-20151222.7z http://darkswarm.org/sm-bios/ocng5-5.3-20151222.7z

3. Connect the USB drive, make sure it's at least 64 MB large 
4. If your Linux distribution automatically displays contents of the drive or presents
   any related contents -- close the recently popped-up window
   
5. Now we need to determine the mount point and device name of the target drive, run:
   

   df -h

   and examine its output. Nowdays, removable media get mounted in /media/.
   Find your drive in there and note device name (drop any trailing digits) and mount point.
   
   For instance:
   

   alice@wonderland:~$ df -h
   Filesystem      Size  Used Avail Use% Mounted on
   /dev/sda1        17G   16G  599M  97% /
   udev            741M  4.0K  741M   1% /dev
   tmpfs           300M  908K  299M   1% /run
   none            5.0M     0  5.0M   0% /run/lock
   none            750M  200K  750M   1% /run/shm
   tmpfs           750M   19M  731M   3% /home/folding/fah
   /dev/sde1        8.0G  705M  7.2G   9% /media/20C8-9A83
   alice@wonderland:~$

   In this case, mount point is: /media/20C8-9A83 and device name is: /dev/sde (note dropped '1'). 
6. Unmount the target drive:
   

   sudo umount <mount point from previous step>

   In our example, it is:
   

   sudo umount /media/20C8-9A83

7. Extract the image onto the USB drive:
   

   sudo -s
   7zr x -so ocng5-5.3-20151222.7z | dd bs=1M of=<device name>
   exit

   In our example, it is:
   

   sudo -s
   7zr x -so ocng5-5.3-20151222.7z | dd bs=1M of=/dev/sde
   exit

8. Wait for the command prompt to return 
9. Eject the drive to make sure all data have reached the medium:
   

   sudo eject -s <device name>

   In our example, it is:
   

   sudo eject -s /dev/sde

10. Remove the USB drive.
11. You're done!

Up: OCNG5: Installation