[U-Boot] [PATCH 3/4] sunxi: Add default partition scheme

Alexander Graf agraf at suse.de
Fri Nov 17 14:20:03 UTC 2017



On 17.11.17 14:04, Maxime Ripard wrote:
> On Fri, Nov 17, 2017 at 12:21:49PM +0000, Andre Przywara wrote:
>> Hi,
>>
>> On 17/11/17 08:27, Maxime Ripard wrote:
>>>
>>> I guess I also have a side question here. How do the installers deal
>>> with the ESP partition? Would they create a new filesystem on it no
>>> matter what, or are they a bit smarter than that?
>>
>> I would expect any installer to not mess with the ESP. After all the ESP
>> belongs to the firmware, and multiboot (both multiple Linux versions as
>> well as other OSes like Windows or BSD) is one main feature of the ESP.
>>
>> The only exception might be if the ESP is not formatted.
>>
>>> My actual question being what will happen if one stores the U-Boot
>>> environment on that partition, and then runs an installer? Would the
>>> environment be gone?
>>
>> I would say that the ESP is a perfect place for the environment. It's
>> FAT and it belongs to firmware, so OSes are just expected to *add* their
>> bootloaders, without touching any other file on it.
> 
> Ok, perfect then, thanks!

Please make sure to

  a) Format it as FAT and
  b) Mark it with the ESP GUID

though, so that it can actually be used by an installer ;)


Alex


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