[Arm-dev] Gigabyte MP30-AR0

Gordan Bobic

gordan at redsleeve.org
Mon Feb 22 20:08:46 UTC 2016

On 2016-02-22 17:29, Michael Howard wrote:
> On 22/02/2016 17:04, Gordan Bobic wrote:
>> On 2016-02-22 16:57, Michael Howard wrote:
>>> On 22/02/2016 16:47, Gordan Bobic wrote:
>>>>> Anyway, the install does in fact succeed, which is great. I 
>>>>> probably
>>>>> should have stuck with the LVM partitioning scheme but hey ho, I 
>>>>> can
>>>>> re run things now that I know UEFI is working.
>>>>> So, I have a minimal CentOS install with 4.2.0-0.21.el7.aarch64
>>>>> kernel. Great start, thanks to all.
>>>>> There is no networking so I need to get the installer to recognise 
>>>>> the
>>>>> nics at install time.
>>>> So installer produces a bootable system, complete with a working 
>>>> kernel?
>>> Yes, and no. It produces a bootable kernel.
>> Right, but how does that kernel get booted?
>> u-boot -> kernel ?
>> u-boot -> UEFI -> kernel ?
>> u-boot -> UEFI -> grub2 -> kernel ?
>>>> Does it use grub2 or does it do some magic to boot the kernel 
>>>> straight
>>>> from UEFI?
>>> I haven't had the nerve to attempt to bun UEFI to SPI-NOR 
>>> permanently,
>> Oh, I wasn't suggesting that. I cannot think of a good reason to burn
>> UEFI into SPI-NOR vs. chain-loading it from u-boot, since the boot
>> cascade is automatable.
>>> so following the install (and any subsequent ones) I've loaded it 
>>> from
>>> u-boot manually and then booted directly from UEFI from there. I can
>>> of course automate that I suppose.
>> Right, so post-install the boot process is:
>> u-boot -> UEFI -> kernel ?
> Yes.

Sweet! Now I just have to try to scrape together enough to get
me one of those cometh pay day. :-D

>> No grub2 involved?
> No.

I'll see if I can do something about that when mine arrives. It
would be nice to have it working the same way x86 UEFI works.

On a semi-related note, is it possible to mount an armv5tel or armv7hl
image, and chroot into it? Does that work? Or is aarch64 not binary
backward compatible with 32-bit ARM binaries like x86-64 is?


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