Re: [coreboot] Coreboot and HP Pavilion 6746C-L?

On 2014-11-05 12:22, [e-mail] wrote:
> Date: Wed, 5 Nov 2014 15:22:53 +0100
> From: Idwer Vollering 
> To: coreboot , Joseph Smith
>
> Subject: Re: [coreboot] Coreboot and HP Pavilion 6746C-L?
> Message-ID:
>
> Content-Type: text/plain; charset="utf-8"
>
> 2014-11-04 4:38 GMT+01:00 :
> > Step 1 (or equal to step 1) and step 5 From 
> > http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph05159&tmp_task=pr... 
> > [1] Intel Socket 370 Pentium III Celeron i810
>
> i810 might still work.
> Here's a photo of the board, with a close-up of the flash chip:
> http://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/htIAAOSw7NNUJcHW/$_57.JPG [2]
>
> You still need spare flash chips and a way to program them.
> See http://www.coreboot.org/FAQ#How_do_I_.28re-.29flash_the_BIOS.3F [3]
>
> When you can program the chip you'll want to see console output, either
> over the serial or EHCI debug port.
> > DMI string baseboard-manufacturer: "Trigem Computer, Inc." DMI string 
> > baseboard-product-name: "Cognac" DMI string baseboard-version: "None" 
> > DMI string chassis-type: "Other" DMI chassis-type is not specific 
> > enough.
>
> It actually is a desktop: blame the vendor or ODM for being lazy/lax 
> and
> not filling that in.
> > Found ITE Super I/O, ID 0x8702 on port 0x2e
>
> Unsupported as-is, but generic enough to configure it to send serial 
> output.
> > ======================================================================== 
> > WARNING! You may be running flashrom on an unsupported laptop. We 
> > could not detect this for sure because your vendor has not setup the 
> > SMBIOS tables correctly. You can enforce execution by adding '-p 
> > internal:laptop=this_is_not_a_laptop' to the command line, but please 
> > read the following warning if you are not sure.
>
> This one is easy to handle by yourself :)
>
> Idwer

#1 Ok, so let me get this straight....

It is possible, but it requires opening up the case to getting to the
hardware - while the computer is on?

#2 Also is it worth it, considering from the risk?

Risk URL ID
http://www.coreboot.org/FAQ#Can_I_do_any_serious_damage_mucking_around_with_...

Thank you

Links:
------
[1] 
http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph05159&tmp_task=pr...
[2] http://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/htIAAOSw7NNUJcHW/$_57.JPG
[3] http://www.coreboot.org/FAQ#How_do_I_.28re-.29flash_the_BIOS.3F

Coreboot and HP Pavilion 6746C-L?

[Idwer Vollering]

2014-11-07 15:21 GMT+01:00 :

#1 Ok, so let me get this straight....
> It is possible, but it requires opening up the case to getting to the
> hardware - while the computer is on?

It is possible to swap flash chips while your computer is running, yes.
The term is called hot-swapping, here are some mini-articles to get you
started:
http://www.coreboot.org/FAQ#Where_can_I_buy_BIOS_chips_.28empty_or_pre-flash...
http://www.coreboot.org/Developer_Manual/Tools#Chip_removal_tools
> #2 Also is it worth it, considering from the risk?

Fact: the board is well beyond its economical life cycle. Opinion: IMO
porting this board is not worth the effort.
> Risk URL ID
> http://www.coreboot.org/FAQ#Can_I_do_any_serious_damage_
> mucking_around_with_this_stuff.3F

Those scenarios only happen when you mess up^W^W don't put any thought in
handling the hardware.

HTH,

Idwer