[clug] ARM devices with complete upstream support

Eyal Lebedinsky eyal at eyal.emu.id.au
Tue Nov 1 04:55:50 UTC 2016

On 01/11/16 12:14, Chris Smart wrote:
> On Mon, Oct 31, 2016 at 11:02:58AM +1100, Eyal Lebedinsky wrote:
>> Hi Chris,
>> Seems that I am the only one playing with this, let me know if you had enough
>> from me.
> Not at all, sorry I've been sick since last Friday and short on time
> (and energy!).
>> On 26/10/16 12:09, Chris Smart wrote:
>> [trim]
>>> Anyway, I have a ~$15 Orange Pi One with H3 (sun8iw7p1) SOC (Cortex-A7
>>> Quad-Core) and was able to build upstream U-Boot and Linux support for
>>> it. If that interests you, feel free to take a look at my blog[2] post.
>> [trim]
>> I thought I should see if it can boot of the second partition, so followed
>> the suggestion
>>     "if you want to boot from the second partition instead of an initramfs,
>>     change root argument to root=/dev/mmcblk0p2"
>> While I can see the SD card recognised properly
>> [    2.377661] mmc0: new SDHC card at address aaaa
>> [    2.383025] mmcblk0: mmc0:aaaa SL16G 14.8 GiB
>> [    2.393803]  mmcblk0: p1 p2
>> I do not see any indication it is mounted, like I see with other images
>> [    2.270255] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
>> [    2.283824] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
>> I assume there is more to booting of p2 than the one kernel parameter.
> You'll need to have copied the contents of the initramfs to the
> partition and also edited an /etc/fstab. I didn't go into these details,
> so if it's confusing I can remove the suggestion entirely.

I see, I actually wanted to copy over a root partition from a full distro (e.g.raspbian).

>> I could also ask about the other note
>>     "upstream U-Boot supports ext3 on the boot partition"
>> but then it is formatted as ext4.
> The boot partition is formatted ext3:
>  sudo mkfs.ext3 /dev/sdx1
> It's the root partition that's formatted ext4 (not that we use it):
>  sudo mkfs.ext4 /dev/sdx2

Of course, I see it now.

> -c


Eyal Lebedinsky (eyal at eyal.emu.id.au)

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