Difference between revisions of "Support/Haswell"
From GalliumOS Wiki
< Support
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== Model-Specific Notes == | == Model-Specific Notes == | ||
| − | === ASUS Chromebox, 2014 (PANTHER) === | + | === ASUS Chromebox, 2014 (PANTHER) / HP Chromebox, 2014 (ZAKO) === |
| − | * Factory firmware bug prevents use of USB keyboard | + | * Factory legacy boot firmware bug prevents use of attached USB devices at boot, including keyboard |
| + | ** While installation is possible with factory firmware, it is less than ideal. | ||
** Custom firmware does not have bug; update <code>RW_LEGACY</code>. See [[Installing/Panther]]. | ** Custom firmware does not have bug; update <code>RW_LEGACY</code>. See [[Installing/Panther]]. | ||
| − | |||
Revision as of 20:23, 7 February 2016
Intel processors with Haswell cores are very popular in 2013-era ChromeOS devices.
Factory firmware support for coreboot and SeaBIOS is common, but custom firmware is also available for all Haswell models from John Lewis: https://johnlewis.ie/custom-chromebook-firmware/rom-download/.
There are three firmware update options available:
- RW_LEGACY
- Leaves all stock functionality intact, including the white "OS verification is OFF" screen
- Allows device to dual-boot GalliumOS alongside ChromeOS
- Some models ship with this feature enabled and including a working SeaBIOS
- On some models, includes bugfixes and enables additional functionality such as booting from SD card/eMMC
- Haswell: Most models ship with this feature enabled, but a few are buggy
- BOOT_STUB
- Bypasses the white "OS verification is OFF" screen
- Removes the ability to run ChromeOS natively, creating a small risk of bricking your device
- Leaves the “REFRESH + POWER” functionality of the stock ROM intact
- If you engage this key sequence, device will reboot and try to run ChromeOS Recovery (which will fail)
- This process will repeat on every boot until you disassemble the device and briefly disconnect the battery
- Full ROM
- Installs a complete ROM containing a coreboot build and a working SeaBIOS
- Bypasses the white "OS verification is OFF" screen
- Removes the ability to run ChromeOS natively, creating a small risk of bricking your device
- Will wipe out all product data
- This option is the most invasive and may include bugs or idiosyncrasies that the stock firmware does not
Model-Specific Notes
ASUS Chromebox, 2014 (PANTHER) / HP Chromebox, 2014 (ZAKO)
- Factory legacy boot firmware bug prevents use of attached USB devices at boot, including keyboard
- While installation is possible with factory firmware, it is less than ideal.
- Custom firmware does not have bug; update
RW_LEGACY. See Installing/Panther.
