Re: [cros-discuss] Developer mode on HP Chromebook 11 (G3, Intel)

[Mike Frysinger]

chromium-os-dev is prob better for this

please file a bug at crbug.com/new and let us know the # so we can flag it

i don't know of the status of SeaBIOS on kip (rambi based devices), but they were supposed to work.  could be that your firmware does not include it.  how do you know that "It seems to have SeaBIOS ability" ?  if you hit CTRL+L, it shouldn't have beeped, it should have gone to a different screen.

note that CTRL+U won't boot non-CrOS images, only CTRL+L will

-mike

On Tue, Oct 27, 2015 at 9:20 PM, Chr One <chrt...@gmail.com> wrote:

Hello,

I recently purchased an HP 11" Chromebook (G3, Intel). It's great, but I also wanted to be able to boot into other operating systems occasionally. So I tried developer mode, and followed all of the instructions (including dev_boot_usb=1, dev_boot_signed_only=0 and dev_boot_legacy=1). Yet when I get to the boot "verification is turned off" screen and press Ctrl-U or Ctrl-L I only get beeps and nothing happens. With Ctrl-L it's two quick beeps and nothing happens on screen. With Ctrl-U the screen goes black briefly and then slowly refreshes with the boot screen and emits a single beep (I have a bootable lubuntu USB stick inserted).

Is there something special about this model of HP? It seems to have SeaBIOS ability.

Chrome version: 46.0.2490.71

Release description: 7390.61.0 (Official Build) stable-channel kip

CPU: Intel(R) Celeron(R) CPU N2840 @ 2.16GHz

hardware_class: KIP C5A-G6N-F3I-A2D

If this is not the correct forum for this type of request, can you please point me at the correct one.

Thanks.

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[Bernie Thompson]

On Wed, Oct 28, 2015 at 1:23 PM, Bernie Thompson <bhtho...@google.com> wrote:

I am sorry to say that Intel Bay Trail based systems, like this HP 11, do not have a functional SeaBIOS for Ctrl+l to function, the bug is at https://code.google.com/p/chromium/issues/detail?id=339572. 

As Mike suggests you can boot CrOS images with Ctrl+u, however that does not really help with booting arbitrary alternate OSes, currently the best solution may be Crouton https://github.com/dnschneid/crouton. 

-Bernie

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[Bill Richardson]

SeaBIOS is an extra feature that we throw in when we can. It's not something that's officially guaranteed to always work or be present. However, there are several external hackers who build custom BIOSes for Chromebooks based largely on Chromium.org source code.

I'd start by looking around at https://johnlewis.ie

​NOTE: While John knows what he's doing, I have not personally tried the images that he builds. Further, a lot of what he does involves ​opening the case, ​disabling the write-protect ​screw, ​and replacing the entire Chromebook BIOS​. That​ is a warranty-voiding operation. The region of the official BIOS where SeaBIOS is placed should not require removing the write-protect screw, and you should be able to poke at it in developer mode​ without opening the case. If the instructions that you find online say otherwise, find new instructions. Unless you're sure you know what you're doing, opening the case is an easy way to turn your Chromebook into a paperweight.

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