Re: [Libreboot] Problems installing libreboot on C201

[Albin]

Den 2015-12-06 kl. 23:26, skrev Albin:
> Hi,
> 
> Den 2015-12-06 kl. 12:46, skrev Paul Kocialkowski:
>> Hi,
>>
>> Le dimanche 06 décembre 2015 à 12:44 +0100, Albin a écrit :
>>> Den 2015-12-06 kl. 10:33, skrev Paul Kocialkowski:
>>>> Le samedi 05 décembre 2015 à 15:25 +0100, Albin a écrit :
>>>>> Den 2015-12-05 kl. 13:27, skrev Paul Kocialkowski:
>>>>>> Le samedi 05 décembre 2015 à 00:34 +0100, Albin a écrit :
>>>>>>> I just found another guide
>>>>>>> (https://gist.github.com/jcs/4bf59314d604538a5098) that mentions a step
>>>>>>> that's missing on libreboot.org: besides removing the write-protect
>>>>>>> screw one also has to run "flashrom --wp-disable". This should explain
>>>>>>> the permissions issue I had.
>>>>>>
>>>>>> Can you confirm that this is the case (and that you were already using
>>>>>> the root account for your first report)? I didn't have to go through
>>>>>> this step when flashing, but maybe it is required the first time.
>>>>>
>>>>> Yes, I was using the root account for the first report. Now I've also
>>>>> tried to run the command "flashrom --wp-disable" which does output
>>>>> "SUCCESS". That did NOT help though because, just as before, the command
>>>>> "./cros-flash-replace flash.img coreboot ro-frid" results in: "bash:
>>>>> ./cros-flash-replace: Permission denied".
>>>>
>>>> Ahh I see, so "Permission denied" is not in all caps (which would have
>>>> looked like a flashrom error message). I bet this is shell complaining
>>>> because the script isn't executable. Try running:
>>>> chmod a+x cros-flash-replace
>>>>
>>>> before running it an everything should work fine. Maybe it would be
>>>> worth mentioning on the installation page.
>>>>
>>>
>>> I had already checked and tried to modify the permissions before asking
>>> on the email list. I get "Permission denied" despite executable
>>> permissions (that were already there), even with chmod 777. Isn't that
>>> strange?
>>
>> Maybe your filesystem doesn't allow execution (mounted with noexec?).
>> Perhaps try moving the files to the internal storage of the device
>> (instead of an external media that the system might mount with noexec),
>> or the opposite.
>>
> 
> Problem solved; libreboot installed!
> 
> I first inserted the SD card into a different computer and tried to run
> the script there but got the same error message. Then I copied over
> flash.img into the veyron_speedy directory that was created after the
> compilation process and ran the script from there as user. This worked
> fine and then I had no trouble installing libreboot on the chromebook
> using flashrom.
> 
> It would be good to mention in the documentation that there can be a
> problem with execution rights. I had the same problem when trying to run
> the scrip both from the SD card and from the internal storage, i.e.
> after copying over the files from the SD card.

I saw that you've added the following to the documentation:
"the cros-flash-replace script has to be made executable: # chmod a+x
cros-flash-replace. This did *not* help in my case (so maybe not for
others also) so I think it should say something else. By the way, the
circle around the write-protect screw on the image is white, not red as
said in the docs.

> 
> Now I only need to figure out how to install a functional GNU system and
> get rid of ChromeOS. Inserting a Debian installer (armhf) and pressing
> Ctrl+U results in a loud *beep* even with all the security features
> disabled. Do I need to prepare a custom installer image?
> 
> Thanks!
> 
> Albin
> 
>>>>>>> Den 2015-12-04 kl. 23:49, skrev Albin:
>>>>>>>> Hi.
>>>>>>>>
>>>>>>>> Tonight I tried to install libreboot onto an ASOS C201. I ran into a
>>>>>>>> number of difficulties that I managed to overcome (see the points 
>>>>>>>> below,
>>>>>>>> my contribution to the docs), but then I got stuck at the point where
>>>>>>>> one is to run the cros-flash-replace script. The terminal keeps
>>>>>>>> returning PERMISSION DENIED. The file permissions, however, are the 
>>>>>>>> same
>>>>>>>> as just after compilation and I've also removed The Screw as 
>>>>>>>> instructed.
>>>>>>>>
>>>>>>>> Does anyone have a clue what might be the problem?
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>>
>>>>>>>> Albin
>>>>>>>>
>>>>>>>>
>>>>>>>> Errors found in the documentation:
>>>>>>>>
>>>>>>>> 1. There are *eight* screws that need to be removed to open the device,
>>>>>>>> not seven. There is (at least on my device) one also beneath the top
>>>>>>>> left pad.
>>>>>>>>
>>>>>>>> 2. You get into the TTY promt by pressing *Ctrl+Alt+Next*.
>>>>>>>> *Ctrl+Alt+Previous* is for exiting the promt.
>>>>>>>>
>>>>>>>> 3. The guide mentions first "cros-flash-replace" and then
>>>>>>>> "cros-firmware-replace":
>>>>>>>>
>>>>>>>> "Then, the cros-flash-replace script has to be executed as such:
>>>>>>>> # ./cros-firmware-replace flash.img coreboot ro-frid"
>>>>>>>>
>>>>>>>> By the way, shouldn't there be .img extensions after coreboot and 
>>>>>>>> ro-frid?
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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