1.7 Creating a Bootable USB Memory Stick

The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

1.7 Creating a Bootable USB Memory Stick

If a UEFI system's firmware supports booting from a USB drive, you can create a boot image on a USB memory stick and use this device to boot the system and start the installation. This boot image does not contain any installation packages. During installation, you are prompted to specify the location of the media that contains the full installation image. See Section 2.1.1, “Starting the Installation”.

Caution

This procedure destroys any existing data on the memory stick.

To avoid overwriting an existing hard disk partition, ensure that you specify the correct device for the USB memory stick. The procedure assumes that the memory stick corresponds to the device /dev/sdb, which might not be the case on your system.

To create a boot image on a USB memory stick:

Insert a USB memory stick into an Oracle Linux 6 system. If the operating system mounts any file systems on the device, unmount these file systems, for example:

# df /media/MEMORYSTICK
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdb1                35346     35346         0 100% /media/MEMORYSTICK
# umount /dev/sdb1

Mount the installation CD, DVD, or boot ISO image on a suitable mount point, for example /media/Oracle\ Linux\ Server.
Use the dd command to write the contents of the images/efidisk.img image file to the USB device:
```
# dd if=/media/Oracle\ Linux\ Server/images/efidisk.img of=/dev/sdb
```

You can now remove the memory stick and use it to boot a target system.