Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

saarthaak — Mon, 01 Apr 2019 07:01:44 GMT

hi zou,

i did the exact same steps that u performed but while making the debian packages i get an error

the error is install: cannot stat 'REPORTING_BUGS' no such file or directory

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

RK — Thu, 19 May 2016 13:41:50 GMT

I'm just working through this for a PI 3, even though the bluetooth seems to be installed already, I want to go through the process and see how it all hangs together.

Where do you select what is built into the kernel? There's no selection in the steps above that I can see, however obviously it's possible to build without things like 6lowpan, because that used to be the default.

I'm going to guess at the commands I need for the PI 3, assume I just change the chip name to the newer broadcom and continue.

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

Jun Qing ZOU — Tue, 14 Jul 2015 10:13:26 GMT

It seems that Bluetooth 6lowpan is now natively supported on Raspbian 2015-05-05.

pi@raspberrypi ~ $ uname -a 
Linux raspberrypi 3.18.11-v7+ #781 SMP PREEMPT Tue Apr 21 18:07:59 BST 2015 armv7l GNU/Linux
 
pi@raspberrypi ~ $ ls /lib/modules/3.18.11-v7+/kernel/net/bluetooth/
bluetooth_6lowpan.ko  bluetooth.ko bnep  hidp  rfcomm

Just load "bluetooth_6lowpan" in /etc/modules.

BR, zou

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

horiebin — Sat, 20 Jun 2015 21:33:07 GMT

When I tried the native-build on my raspberry-pi-2 with 16G sd card I meeted a problem :

WARNING: missing /lib/modules/3.18.16-rpi2-6lowpan-v7+ Device driver support needs thus be built-in linux image!

ERROR: could not open directory /lib/modules/3.18.16-rpi2-6lowpan-v7+: No such file or directory FATAL: could not search modules: No such file or directory

ERROR: ld.so: object 'libfakeroot-sysv.so' from LD_PRELOAD cannot be preloaded: ignored.

WARNING: could not open /var/tmp/mkinitramfs_kQya3Z/lib/modules/3.18.16-rpi2-6lo wpan-v7+/modules.order: No such file or directory

WARNING: could not open /var/tmp/mkinitramfs_kQya3Z/lib/modules/3.18.16-rpi2-6lo wpan-v7+/modules.builtin: No such file or directory /usr/sbin/update-initramfs: 204: /usr/sbin/update-initramfs: cannot create /var/ lib/initramfs-tools/3.18.16-rpi2-6lowpan-v7+: Permission denied

run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2 arch/arm/boot/Makefile:99: recipe for target 'install' failed make[3]: *** [install]

Error 1 arch/arm/Makefile:311: recipe for target 'install' failed make[2]: *** [install] Error 2 make[2]: Leaving directory '/home/pi/raspbian/kernel/linux' debian/ruleset/targets/image.mk:34: recipe for target 'debian/stamp/install/linu x-image-3.18.16-rpi2-6lowpan-v7+' failed make[1]: *** [debian/stamp/install/linux-image-3.18.16-rpi2-6lowpan-v7+]

Error 2 make[1]: Leaving directory '/home/pi/raspbian/kernel/linux' debian/ruleset/local.mk:105: recipe for target 'kernel_image' failed make: *** [kernel_image] Error 2

and I don't know how to fix the problem

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

horiebin — Thu, 18 Jun 2015 19:58:22 GMT

Hello Hakon

I tried the cross-compiling the kernel for my raspberry pi 2 on my Ubuntu 14.04. I followed your guide and found a problem when doing "Generate .deb packages". It appeared a problem which was caused by a bug of My version of ubuntu.And fixed it by downloading this package .

However, the debian files I have created had the same problem with Zou. So now I need to take hours to do the native build.

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

Rasit Eskicioglu — Thu, 21 May 2015 21:23:49 GMT

Hi Zou and Håkon,

I followed Zou's instructions to build a new kernel on my Raspberry Pi 2.

First, I did not need the build-essential and git packages. They were already installed on 2015-05-05-raspbian-wheezy.img.

Second, make –j 5 && make –j 5 modules gave an error, saying make does not know how to make target -j5 (this was bizarre, because man page says -j is an option. Further, I tried --jobs=5 and it did go thru, but only 1 job at a time. So, it is still building (2+ hours, now)

Any comments?

--Rasit

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

Håkon Alseth — Wed, 06 May 2015 19:26:08 GMT

Hi Zou,

I'm glad to hear that the guide was useful! Regarding the dependency to libc6 when cross-compiling; This is something I also saw when running Ubuntu 15.04-AMD64, but I did a force install to verify that the kernel booted properly on the RPi2. The problem seems to be that Ubuntu 15.04 seems to set a dependency to the systems libc instead of the crosscompiled targets libc when it's creating the debian packet using make-kpkg.

I also did a successful deb-generation on Ubuntu 14.10, and figured it was a 15.04-issue (at the time of writing the blog, 15.04 was still in beta), but it might also be that the "make-kpkg" is called incorrectly from my side.

It's an annoying issue, but it's not due to cross-compiling, but rather the generation of the .deb files.

I haven't been able to get around this in 15.04 (yet).

Cheers, Håkon

RE: Building kernel for RPi2 with bluetooth_6lowpan for Raspbian

Jun Qing ZOU — Fri, 01 May 2015 01:57:22 GMT

Hi Hakon,

Thanks for the great guide. I managed to get a RPi2 then tried the steps. My setup is Raspbian 2015-02-16 on R.Pi 2 Model B, with a 16G microSD.

For the cross-compilation, I build the Raspbian kernel on my Ubuntu 15.4 laptop. But the kernel has a dependency on libc6 (>= 2.14), while the Raspbian host has 2.13-38+rpi2+deb7u8, so cannot install the debian package.

For the native build, it works. Major steps that I did

Get git, bc and kernel-package

sudo apt-get install git bc kernel-package -y

Clone the kernel (3.18.12 at the time that I fetched)

git clone github.com/.../linux.git

Get build essential

sudo apt-get install build-essential –y

Set default configuration

make bcm2709_defconfig

Compile

make –j 5 && make –j 5 modules

Dedian package

CONCURRENCY_LEVEL=5 DEB_HOST_ARCH=armhf fakeroot make-kpkg --revision date +%Y%m%d --initrd kernel_image kernel_headers

I successfuly created two debian files of

linux-headers-3.18.12-v7+_20150501_armhf.deb and linux-image-3.18.12-v7+_20150501_armhf.deb

This image has dependency on libc6 (>= 2.13-28), which is all fine. After install it, bluetooth_6lowpan is present.

BR, zou