By the way, the kernel I failed with was: linux-image-4.4.43-bone-rt-r16

On Wed, Jan 18, 2017 at 9:32 AM, William Hermans <yyrk...@gmail.com> wrote:

> So, I've tested this a few times over the last . . .<whatever it's been
> since announcement >, and I have found that loading a single overlay seems
> to work really good. Attempting multiple overlays however, seems to  be an
> exercise in frustration. e.g. It's not ready. It's possible that I got
> something wrong, but I do not usually do that more than once. I've tried
> multiple times.
>
> So my recommendation is, if you're an embedded Linux noob, or a beginner
> to this platforms boot process. Steer clear. If you're reasonably
> experienced in both of these areas, and don't mind testing - Have fun. But
> I would definitely strongly advise to not attempt this on a production
> system.
>
> Basically what happens is uboot complains that the cmdline kernel
> parameter does not contain a valid flattened device tree overlay path. Why
> exactly, I'm not sure. I did see uboot "mention" that it can not find a
> valid partition for partitions 1-6 . . . which I think may be standard
> uboot debug output. First, it checked the path for the UUID, then attempted
> the blk device. Failing ( or flailing ). However, this works perfectly fine
> when using:
>
> ##Example v4.1.x
>> #cape_disable=bone_capemgr.disable_partno=
>> cape_enable=bone_capemgr.enable_partno=controller,BB-ADC,BB-W1-P8.26
>>
>
> After making sure the overlays exist in /lib/firmware/, and then running:
>
> root@beaglebone:~# cd /opt/scripts/tools/developers/
>> root@beaglebone:/opt/scripts/tools/developers# ./update_initrd.sh
>> root@beaglebone:/opt/scripts/tools/developers# reboot
>>
>
> One should also keep in mind that if you update to a newer kernel before
> this process. Make sure you reboot into your new kernel first. Otherwise
> your board *WILL* boot, but the boot process will stop inside the
> initramfs. I fell into this trap myself, and basically what happens. You
> will end up updating the initramfs you just replaced, while leaving the
> replacement initramfs without a clue as to where to go next. Once the
> initramfs loads that is.
>
> Anyway, this is a potentially really cool, and good feature. I look
> forward to this working flawlessly in the future. However, at this point in
> time, I have to give testing a pass. As I have other priorities that must
> come first - currently.
>

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