* First, ensure that your laptop is [http://wiki.laptop.org/go/Activation_and_developer_keys unlocked].
* First, ensure that your laptop is [http://wiki.laptop.org/go/Activation_and_developer_keys unlocked].
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* Download [http://download.sugarlabs.org/platform/reference-xo/xo1/os.img os.img] and [http://download.sugarlabs.org/platform/reference-xo/xo1/os.crc os.crc] files to the root directory of a USB stick or SD card.
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* Download [http://download.sugarlabs.org/images/reference-xo/xo1/os.img os.img] and [http://download.sugarlabs.org/images/reference-xo/xo1/os.crc os.crc] files to the root directory of a USB stick or SD card.
* Drop to the [[OLPC:Open Firmware|Open Firmware]] "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot.
* Drop to the [[OLPC:Open Firmware|Open Firmware]] "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot.
* Type the command: <code>'''copy-nand u:\os.img'''</code> for a USB stick or <code>'''copy-nand sd:\os.img'''</code> for a SD card followed by [[File:Key_enter.jpg|50px]] (enter).
* Type the command: <code>'''copy-nand u:\os.img'''</code> for a USB stick or <code>'''copy-nand sd:\os.img'''</code> for a SD card followed by [[File:Key_enter.jpg|50px]] (enter).