On Sun, Aug 11, 2019 at 2:59 PM shabaz <[email protected]> wrote:
>
> Hi,
>
> I'm a newcomer to kernel compilation. I had the latest Debian 9.5 2018-10-07 
> 4GB SD LXQT installed on my BeagleBone Black Wireless.
> Doing uname -r, I discovered that Kernel 4.14.71-ti-r80 is part of this 
> Debian image.
>
> I followed some instructions:
> https://elinux.org/EBC_Installing_Kernel_Source
>
> In a nutshell, the instructions state to do this on a Linux PC:
>
> git clone https://github.com/RobertCNelson/bb-kernel.git
> cd bb-kernel
> git tag
>
> I couldn't find 4.14.71-ti-r80 in the tag list, but the latest in the list 
> for release 4.14.71 seemed to be patch 'bone17', i.e:
> 4.14.71-bone17
>
> So, I did:
> git checkout 4.14.71-bone17 -b 4.14.71-bone17
> ./build_kernel.sh
>
> A Kernel Configuration text window appeared partway, and I clicked on Exit as 
> mentioned in the instructions, and ultimately everything compiled.
> To copy it across to the BBB, I put the micro SD card into the Linux PC, 
> edited the system.sh file to set MMC variable to point to the disk name 
> (/dev/sdb in my case) and then typed
> ./tools/install_kernell.sh
>
> All seemed to go fine, and I put it into my BBB-Wireless, and powered up.
> My problem is, although it is running, I can only access it via the serial 
> console pins (using a USB UART cable). There is no 192.168.7.0 network any 
> more, nor is there any wlan any more. If I type ifconfig -a, all I see is 
> interface 'lo'.
>
> I have two main questions.
> Firstly, where did I go wrong? Should I have done something extra for 
> BBB-Wireless?
>
> Secondly, if I wanted to build the exact same kernel version as in the Debian 
> 9.5 2018-10-07 4GB SD LXQT image, how do I know which tag to use? I presume 
> the tag I used is not the same as 4.14.71-ti-r80
>
> The reason I'm building the kernel, is as a test prior to attempting to build 
> it with Xenomai patches (another thing I've never done before : (
>
> Many thanks in advance for your help.

xenomai is already pre-built:

cd /opt/scripts/tools/
git pull
sudo ./update_kernel.sh --ti-xenomai-channel --lts-4_14

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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