Re: [Libreboot] Libreboot Digest, Vol 16, Issue 19

[Vincent Coffeen]

Please remove me from all correspondence and communique.

> On Jan 28, 2016, at 11:01 AM, address@hidden wrote:
> 
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> Today's Topics:
> 
>   1. Re: libreboot write protected (Daniel Tarrero)
>   2. Re: X200 nvramtool not working. "No CMOS Option Table"
>      (Daniel Tarrero)
>   3. Re: X200 nvramtool not working. "No CMOS Option Table"
>      (Daniel Tarrero)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 28 Jan 2016 16:11:37 +0100
> From: Daniel Tarrero <address@hidden>
> To: address@hidden
> Subject: Re: [Libreboot] libreboot write protected
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset="UTF-8"
> 
> wow dude, there's a full party into I-ME :S
> i send this to the list, maybe other's interested too :)
> 
> The PDF from Igor Skochinsky that i found in the link you send me is
> full of great resources! recommended (foot notes) <<<<<<<< ++ !!!!
> 
> if i've understand you right, we want to break intel's ME. We can call
> that "write protection" firmware, but maybe i will call it "faulty
> firmware to break intel's ME and avoid future changes v?a software".
> 
> Now is time to check the resoults :)
> 
> i have this for windows, maybe can help you (could this be launched from
> hiren's cd boot live windows XP? u will tell ;):
> https://downloadcenter.intel.com/download/19009/Intel-Management-Engine-Verification-Utility
> 
> i also see in the kernel documentation that there is a module able to
> talk to intel's ME (probably not fully tested, not fully featured, but
> can give you some "working-notworking" scenarios.
> https://www.kernel.org/doc/Documentation/misc-devices/mei/mei.txt 
> 
> 
> 
> 
> El jue, 28-01-2016 a las 14:14 +0300, Chris Gask escribi?:
>> https://libreboot.org/docs/hcl/gm45_remove_me.html 
>> 
>> Above link is about preparing write protect libreboot.
>> 
>> 
>>        Thursday, January 28, 2016 11:57 AM +01:00 from Daniel Tarrero
>>        <address@hidden>:
>> 
>>        i'm not sure if there is something like "write protected
>>        firmware".
>> 
>>        maybe it's more something like "signed firmware which detects
>>        when
>>        itself gets modified".
>> 
>>        please send a link to documentation about this "write
>>        protection" you
>>        want to play with!
>> 
>>        D
>> 
>> 
>>        El mar, 26-01-2016 a las 21:06 +0300, Chris Gask escribi?:
>>> Hi,
>>> 
>>> I have flashed libreboot. Rom image was prepared as to be
>>        "write
>>> protect".
>>> 
>>> Anyway once command was entered "dmidecode" there is info
>>        "bios
>>> upgradeable".
>>> 
>>> It only let say false positive? Or something went wrong and
>>        bios is
>>> indeed upgradeable?
>>> 
>>> thanks
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Thu, 28 Jan 2016 16:37:55 +0100
> From: Daniel Tarrero <address@hidden>
> To: address@hidden
> Subject: Re: [Libreboot] X200 nvramtool not working. "No CMOS Option
>    Table"
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset="UTF-8"
> 
> compilation flags used to be set as environment variables or
> configuration parameter, as follows:
> 
> $ MY_FLAG=true
> $ ./configure && make
> 
> or
> 
> $ ./configure --with-my-flag=true
> 
> 
> try this:
> 
> ./configure --help
> 
> 
> 
> El jue, 28-01-2016 a las 14:12 +0100, Bitmonster escribi?:
>> Yes, i think so. :x
>> 
>> I don't know how to set the flags, but i downloaded the source of libreboot 
>> and found the relevant options:
>> power_management_beeps=Enable
>> low_battery_beep=Enable
>> 
>> in libreboot_src/coreboot/src/mainboard/lenovo/x200/cmos.default
>> 
>> If i got the time. I would change the options in this file and then rebuild 
>> libreboot. Maybe it will work this way... O.o
>> 
>> Best Regards.
>> 
>> 
>>> On Thu, 28 Jan 2016 11:46:25 +0100
>>> Daniel Tarrero <address@hidden> wrote:
>> 
>>> :S maybe you have to rebuild
>>> 
>>> check for dependencies because USE_OPTION_TABLE seem dependant on
>>> HAVE_OPTION_TABLE
>>> 
>>> ... so regardless you had this flag enabled (=yes) maybe there are other
>>> flags you have to enable too in order to use this "option table"
>>> 
>>> i have no idea xD good luck! :)
>>> 
>>> 
>>> 
>>> 
>>> El jue, 21-01-2016 a las 17:37 +0100, Robin Vobruba escribi?:
>>>> i have an x200 with libreboot na dgrub, nad when i try these steps, i
>>>> get:
>>>> nvramtool: /coreboot/util/nvramtool/accessors/cmos-mem.c:17:
>>>> mem_hal_read: Assertion `mem_hal_data != (unsigned char*)-1' failed.
>>>> 
>>>> (for both the commands)
>>>> 
>>>> using the coreboot self-compiled nvramtool
>>>> 
>>>> 
>>>> 2016-01-21 15:34 GMT+01:00 Datentonne <address@hidden>:
>>>>        Hi,
>>>> 
>>>>        i am using Libreboot + grub on a X200, everything is working
>>>>        fine. Except one thing. I wan't to disable the annoying
>>>>        Low-Battery-Beep and followed the guide described here.
>>>>        https://libreboot.org/docs/misc/#powerbeeps
>>>> 
>>>>        But i can't use nvramtool. The ouput is:
>>>>        "nvramtool: CMOS option table not found in coreboot table.
>>>>        Apparently, the coreboot installed on this system was built
>>>>        without specifying HAVE_OPTION_TABLE."
>>>> 
>>>>        Config from the .rom says "HAVE_OPTION_TABLE=yes"
>>>> 
>>>>        Can anyone with a X200 confirm this or has maybe a solution
>>>>        for me.
>>>> 
>>>>        Best Regards.
>>>> 
>>>>        Herr G.
>>>> 
>>>> 
>>>>        P.S.: Please forgive my English, its not my native language
>>>>        and i am posting on a Mailinglist the first time.
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 28 Jan 2016 16:39:24 +0100
> From: Daniel Tarrero <address@hidden>
> To: address@hidden
> Subject: Re: [Libreboot] X200 nvramtool not working. "No CMOS Option
>    Table"
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset="UTF-8"
> 
> dont edit sources to change options! this are default values
> 
> i've just send the two common ways to set it "on build time" without
> need to edit sources :)
> 
> El jue, 28-01-2016 a las 14:12 +0100, Bitmonster escribi?:
>> Yes, i think so. :x
>> 
>> I don't know how to set the flags, but i downloaded the source of libreboot 
>> and found the relevant options:
>> power_management_beeps=Enable
>> low_battery_beep=Enable
>> 
>> in libreboot_src/coreboot/src/mainboard/lenovo/x200/cmos.default
>> 
>> If i got the time. I would change the options in this file and then rebuild 
>> libreboot. Maybe it will work this way... O.o
>> 
>> Best Regards.
>> 
>> 
>>> On Thu, 28 Jan 2016 11:46:25 +0100
>>> Daniel Tarrero <address@hidden> wrote:
>> 
>>> :S maybe you have to rebuild
>>> 
>>> check for dependencies because USE_OPTION_TABLE seem dependant on
>>> HAVE_OPTION_TABLE
>>> 
>>> ... so regardless you had this flag enabled (=yes) maybe there are other
>>> flags you have to enable too in order to use this "option table"
>>> 
>>> i have no idea xD good luck! :)
>>> 
>>> 
>>> 
>>> 
>>> El jue, 21-01-2016 a las 17:37 +0100, Robin Vobruba escribi?:
>>>> i have an x200 with libreboot na dgrub, nad when i try these steps, i
>>>> get:
>>>> nvramtool: /coreboot/util/nvramtool/accessors/cmos-mem.c:17:
>>>> mem_hal_read: Assertion `mem_hal_data != (unsigned char*)-1' failed.
>>>> 
>>>> (for both the commands)
>>>> 
>>>> using the coreboot self-compiled nvramtool
>>>> 
>>>> 
>>>> 2016-01-21 15:34 GMT+01:00 Datentonne <address@hidden>:
>>>>        Hi,
>>>> 
>>>>        i am using Libreboot + grub on a X200, everything is working
>>>>        fine. Except one thing. I wan't to disable the annoying
>>>>        Low-Battery-Beep and followed the guide described here.
>>>>        https://libreboot.org/docs/misc/#powerbeeps
>>>> 
>>>>        But i can't use nvramtool. The ouput is:
>>>>        "nvramtool: CMOS option table not found in coreboot table.
>>>>        Apparently, the coreboot installed on this system was built
>>>>        without specifying HAVE_OPTION_TABLE."
>>>> 
>>>>        Config from the .rom says "HAVE_OPTION_TABLE=yes"
>>>> 
>>>>        Can anyone with a X200 confirm this or has maybe a solution
>>>>        for me.
>>>> 
>>>>        Best Regards.
>>>> 
>>>>        Herr G.
>>>> 
>>>> 
>>>>        P.S.: Please forgive my English, its not my native language
>>>>        and i am posting on a Mailinglist the first time.
> 
> 
> 
> 
> 
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> 
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> End of Libreboot Digest, Vol 16, Issue 19
> *****************************************