Changes

* 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].

* Download [http://download.sugarlabs.org/platform/desktop/xo1/xo.img xo.img] and [http://download.sugarlabs.org/platform/desktop/xo1/xo.crc xo.crc] files to the root directory of a USB stick or SD card.

* 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.

* Drop to the "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot.

* Drop to the "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot.

* Type the command: <code>'''copy-nand u:\xo.img'''</code> for a USB stick or <code>'''copy-nand sd:\xo.img'''</code> for a SD card followed by [[File:Key_enter.jpg|50px]] (enter).

* Type the command: <code>'''copy-nand u:\xo.img'''</code> for a USB stick or <code>'''copy-nand sd:\xo.img'''</code> for a SD card followed by [[File:Key_enter.jpg|50px]] (enter).

* 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].

* Download [http://download.sugarlabs.org/platform/desktop/xo1.5/xo.zd xo.zd] to the root directory of a USB stick

* Download [http://download.sugarlabs.org/platform/reference-xo/xo1.5/os.zd os.zd] to the root directory of a USB stick

* Drop to the "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot

* Drop to the "'''ok'''" prompt by pressing [[File:Esc.svg|24px]] (Esc) repeatedly during boot

* Type the command: <code>'''fs-update u:\xo.zd'''</code> followed by [[File:Key_enter.jpg|50px]] (enter)

* Type the command: <code>'''fs-update u:\xo.zd'''</code> followed by [[File:Key_enter.jpg|50px]] (enter)