[fedora-arm] Impact of UEFI boot - Re: Re: Fedora 29 new U-Boot/arm-trusted-firmware and Raspberry Pi firmware heads up

On 09/07/2018 08:19 AM, Robert Moskowitz wrote:
> What is meant by:
>
>
> Improvements for upgrade path for UEFI on ARMv7

I just spent a little time researching UEFI.  I have a few concerns, and
it probably explains a challenge I have had on my x86_64 notebook.

That is, I have the 'habit' of developing a build on a test system,
moving the drive to the production unit in my rack and booting up.

It seems I can do that with Legacy BIOS as it searches for a boot drive
with an MBR and goes from there.  My take on UEFI is that the GUID for a
drive and other information is stored on the system board and that is
used to find the bootup drive.  You swap out drives, it won't boot up. 
Either you need a tool to change the GUID information in the system, or
change the GUID in the drive you are using.

I suppose one way is to set the GUID in my drive to what the production
system is expecting so that the move goes smoothly.

Do I have this right?  Is there something else I should be aware of and
plan for?

thanks


>
> thanks
>
> On 09/07/2018 05:32 AM, Peter Robinson wrote:
>> Hi All,
>>
>> There's a new update headed to testing for Fedora 29. It makes some
>> adjustments to how we handle a few things, in particular the Raspberry
>> Pi firmware:
>>
>> https://bodhi.fedoraproject.org/updates/FEDORA-2018-56bc88dfb2
>>
>> I don't expect anyone to see anything issues in particular especially
>> for the vast majority of people that just use a SD card or HDD with
>> their ARM device but there might be some corner cases for people with
>> slightly more esoteric setups when they upgrade. If anyone sees any
>> issues please open a bug [1] or reply to this or reach out on
>> #fedora-arm. The change has been in rawhide for a little while and
>> I've not seen any fall out there.
>>
>> Also the new U-Boot will have some slight improvements for those
>> running AllWinner 64 bit devices as we've moved to the upstream ARM
>> trusted firmware. It's just a snapshot at the moment but the previous
>> fork was quite old and had it's issues on certain devices so I expect
>> this to be an overall win for people there, but again I can't test
>> everything so if anyone sees issues please reach out.
>>
>> All please add karma to the above update when you do test it. People
>> can update U-Boot on a running system with the update-uboot command
>> with similar syntax to arm-image-installer.
>>
>> Peter
>>
>> [1]
>> https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&version=29&component=bcm283x-firmware
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