Difference between revisions of "Support/Haswell"

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Factory firmware support for booting legacy OSes via SeaBIOS is common, but custom firmware is also available for all Haswell models as well -- see [[Firmware]].
 
Factory firmware support for booting legacy OSes via SeaBIOS is common, but custom firmware is also available for all Haswell models as well -- see [[Firmware]].
 
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
 
#* Most models ship with this feature enabled and including a working SeaBIOS
 
#* On some models, includes bugfixes and enables additional functionality
 
#* '''''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
 
#* Removes the white "OS verification is OFF" screen
 
#* Removes the ability to run ChromeOS natively, creating a small risk of bricking your device
 
#* Adds full hardware support for virtualization (vmx / VT-x)
 
#* This option is the most comprehensive and fixes many bugs and/or idiosyncrasies associated with the stock firmware
 
 
  
 
== Model-Specific Notes ==
 
== Model-Specific Notes ==

Revision as of 22:21, 9 March 2016

Intel processors of the Haswell architecture are very popular in 2013/2014-era ChromeOS devices.

Factory firmware support for booting legacy OSes via SeaBIOS is common, but custom firmware is also available for all Haswell models as well -- see Firmware.

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.