Operating system image installation methods: Difference between revisions
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| nand unsigned |
| nand unsigned |
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| .img and .crc |
| .img and .crc |
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| check if security is enabled, if so obtain [[Developer_key|developer key]] and [[Developer_key# |
| check if security is enabled, if so obtain [[Developer_key|developer key]] and [[Developer_key#Disabling_the_security_system|disable-security]], [[Ok|interrupt boot]], then use the ''copy-nand'' command |
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| [[Release notes]] [[Clean-install_procedure#Development_builds|Clean Install Procedure]] [[Nandblaster_for_XO-1]] |
| [[Release notes]] [[Clean-install_procedure#Development_builds|Clean Install Procedure]] [[Nandblaster_for_XO-1]] |
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|- |
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| nand partitioned<br> |
| nand partitioned<br> |
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| .dat and .img |
| .dat and .img |
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| check if security is enabled, if so obtain [[Developer_key|developer key]] and [[Developer_key# |
| check if security is enabled, if so obtain [[Developer_key|developer key]] and [[Developer_key#Disabling_the_security_system|disable-security]], [[Ok|interrupt boot]], then use the ''update-nand'' command |
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| Used by [[DebXO]]. Used by [[UBIFS_initial_experiments|UBIFS experiments]]. See also [[OFW_NAND_FLASH_Updater|Technical description]]. |
| Used by [[DebXO]]. Used by [[UBIFS_initial_experiments|UBIFS experiments]]. See also [[OFW_NAND_FLASH_Updater|Technical description]]. |
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Revision as of 02:13, 1 January 2014
We use a few different methods to install operating system images.
| installation method | what files are required | how to install | references |
|---|---|---|---|
| block signed | .zd and fs.zip | hold down the four game pad buttons and then turn on the laptop | Release notes |
| block unsigned | .zd alone | check if security is enabled, if so obtain developer key and disable-security, interrupt boot, then use the fs-update command | Release notes |
| nand signed | .img and fs.zip | hold down the four game pad buttons and then turn on the laptop | Release notes Clean Install Procedure Nandblaster_for_XO-1 |
| nand unsigned | .img and .crc | check if security is enabled, if so obtain developer key and disable-security, interrupt boot, then use the copy-nand command | Release notes Clean Install Procedure Nandblaster_for_XO-1 |
| nand partitioned |
.dat and .img | check if security is enabled, if so obtain developer key and disable-security, interrupt boot, then use the update-nand command | Used by DebXO. Used by UBIFS experiments. See also Technical description. |
The signed installation methods are the same for XO-4, 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.
A deployment will typically sign their builds and inject deployment keys at manufacture or on site.
The unsigned installation methods depend on the type of internal storage. XO-1 has raw NAND Flash. XO-1.5, XO-1.75 and XO-4 have microSD or eMMC managed Flash.
See also Firmware/Storage.