Re: Build Kernel 5.5 RC3 for Raspberry4
ok Nigel,
the tutorial on
https://gist.github.com/G-UK/ee7edc4844f14fec12450b2211fc886e
is working.
so i have build a 4.19 kernel to boot rpi4. but this is not the problem.
The main reason I use "real" debian system is the horrible kernel name schema on raspbian.
that's make the task to do a remote kernel update on a system where only ssh access is available more to a game of luck then to a administrative task. especial when you need a initram to boot like in my case. Or even you have to write a buggy wrapper to fix this. In my opinion debian has find a good way for that problem.
So i highly prefer this system/kernel and the way it boots. An other side effect is that it seems to have a better network stack. I used some rpi3 as apt cacher and with debian 64bit there is a better performance of the already cached files but is can also be caused on the 64bit. I haven't check this very much.
The dtb files build with kernel 4.19 dosen't also work, when i try to boot my custom 5.5 kernel.
Boot stop at "Run /init as init process"
but most of the firmware errors seems to be fixed.
So I'am looking forward the day were there is a 5.5 branch on raspberr kernel source and try the vanilla/upstream debian kernel again unless you have an idea how to fix "Run /init as init process" as described above.
thanks a look for your help.
On 02.01.20 21:36, Nigel Sollars wrote:
> Ok cool,
>
> So I did some more looking around, perhaps looking at this ( if you
> have not yet ) might be pertinent,
>
> https://gist.github.com/G-UK/ee7edc4844f14fec12450b2211fc886e
>
> Nige
>
> On Thu, Jan 2, 2020 at 2:02 PM basti <mailinglist@unix-solution.de> wrote:
>> thank's for your request. i have try the upstream dtb from
>>
>> https://github.com/raspberrypi/firmware/
>>
>> same firmware errors. Boot stop at
>> "Run /init as init process"
>>
>> On 02.01.20 19:24, Nigel Sollars wrote:
>>> Any progress on this?
>>>
>>> On Wed, Jan 1, 2020 at 12:09 PM Nigel Sollars <nsollars@gmail.com> wrote:
>>>> Looks like device tree's dtb's, as I said seems that your missing alot
>>>> as per the fist errors ( GPIO's ) and the size difference you saw.
>>>>
>>>> more info here
>>>>
>>>> https://github.com/raspberrypi/linux/issues/2543
>>>>
>>>> with the link pointing here
>>>>
>>>> https://github.com/raspberrypi/firmware/tree/master/boot
>>>>
>>>> Nige
>>>>
>>>> On Wed, Jan 1, 2020 at 6:15 AM basti <mailinglist@unix-solution.de> wrote:
>>>>> The kernel was build with
>>>>>
>>>>> make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- defconfig
>>>>> make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- menuconfig
>>>>> (to check if raspberry pi stuff is enablend)
>>>>> make -j`nproc` ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- bindeb-pkg
>>>>>
>>>>> I get also firmware errors when I boot the original ubuntu image (log
>>>>> attached).
>>>>> so i think it doesn't matter.
>>>>>
>>>>> Boot the debian kernel I miss something like:
>>>>>
>>>>> [ 4.541716] mmc0: new ultra high speed DDR50 SDHC card at address aaaa
>>>>> [ 4.555228] mmcblk0: mmc0:aaaa SC32G 29.7 GiB
>>>>> [ 4.569103] mmcblk0: p1 p2
>>>>>
>>>>> RASPBERRYPI_FIRMWARE is set in kernel config. I'm not sure what this
>>>>> mean, what steps i have to do that the kernel use the firmware.
>>>>> In the log attached you can find this:
>>>>>
>>>>> [ 0.096980] raspberrypi-firmware soc:firmware: Attached to firmware
>>>>> from 2019-08-15 12:03, variant start
>>>>> [ 0.100911] raspberrypi-firmware soc:firmware: Firmware hash is
>>>>> 9f8431fb7839c7f00f52b81f5822ddab2b31d0db
>>>>>
>>>>> which file is used there?
>>>>>
>>>>> On 01.01.20 05:23, Nigel Sollars wrote:
>>>>>> Just took a look at the bootlog there, those GPIO failures arnt
>>>>>> clever, missing firmware I would take a wild guess that things in the
>>>>>> latest kernel tree has changed I did also see an article about newer
>>>>>> support for the Pi 4 in the latest kernel ( cant remember if its 5.4
>>>>>> or 5.5 ). Do you use 'make menuconfig'?. the size difference you
>>>>>> mention with those errors do point to you not enabling the needful
>>>>>>
>>>>>> Looks like 4.19 has been the latest for along time, I would diff your
>>>>>> 5.5 config with the 4.19 and see what you have missing / what has
>>>>>> moved / changed. A quick google does not yield much so you could be
>>>>>> very much on your own / pioneering this one.
>>>>>>
>>>>>> Hopefully helpful links
>>>>>>
>>>>>> Someone to perhaps reach out to for info,
>>>>>> https://forum.manjaro.org/t/raspberry-pi-4-5-4-1-kernel/114273
>>>>>>
>>>>>> 5.5 Graphics / better support by all accounts,
>>>>>>
>>>>>> https://www.phoronix.com/scan.php?page=article&item=linux-55-features&num=1
>>>>>> https://www.linux-arm.info/index.php/1537-linux-5-5-lands-broadcom-bcm2711-raspberry-pi-4-bits
>>>>>>
>>>>>> again hope this helps
>>>>>>
>>>>>> Nige
>>>>>>
>>>>>> On Tue, Dec 31, 2019 at 5:18 AM basti <mailinglist@unix-solution.de> wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> I have try to build kernel for raspi4 from upstream (5.5-rc3). Kernel
>>>>>>> boot but can't find the SD Card, so there is no partition, no root-fs
>>>>>>> and end up in initramfs/busybox.
>>>>>>>
>>>>>>> Log of serial console is attached. I have used U-boot and dtb from
>>>>>>> ubuntu image. My dtb build during kernel build is a half size of the
>>>>>>> ubuntu one and doesn't work.
>>>>>>>
>>>>>>> the custom build kernel works on rpi3 out of the box.
>>>>>>>
>>>>>>> best regards
>>>>>>>
>>>>>>> p.s. i build it as deb package
>
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