Operating system image installation methods

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We use a few different methods to install operating system images.

installation method what files are required how to install references
XO-1.75 signed .zd and fs.zip hold down the four game pad buttons
XO-1.75 unsigned .zd alone check if security is disabled, if so obtain developer key and disable-security, interrupt boot, then use the fs-update command
XO-1.5 signed .zd and fs.zip hold down the four game pad buttons Fedora 11 for XO-1.5 install to internal microSD Release_notes/10.1.1 Nandblaster_for_XO-1.5
XO-1.5 unsigned .zd alone check if security is disabled, if so obtain developer key and disable-security, interrupt boot, then use the fs-update command F11_for_1.5 Release_notes/10.1.2 Nandblaster_for_XO-1.5
XO-1 signed .img and fs.zip hold down the four game pad buttons Clean Install Procedure Nandblaster_for_XO-1
XO-1 unsigned .img and .crc obtain developer key, disable-security, interrupt boot, then use the copy-nand command Clean Install Procedure Release_notes/10.1.2 Nandblaster_for_XO-1
XO-1 partitioned
.dat and .img obtain developer key, disable-security, interrupt boot, then use the update-nand command Used by DebXO. Used by UBIFS experiments.

Technical description.

The signed installation methods are the same for XO-1.75, XO-1.5 and XO-1. This was by design, since we do not wish to increase the training burden for the deployment teams.

The unsigned installation methods depend on the type of internal storage. XO-1 has raw NAND Flash. XO-1.5 and XO-1.75 have microSD or eMMC managed Flash.

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