Benefits of Kirkstone:

• There are 93 Security Fixes

  https://docs.yoctoproject.org/migration-guides/release-notes-4.0.html#security-fixes-in-4-0

• Components where security fixes are added :- binutils, curl, epiphany, expat, ffmpeg, gcc, glibc, gmp, go, grub2, gzip, libarchive, libxml2, libxslt, lighttpd, linux-yocto, amdgpu, lua, openssl, qemu , rpm , seatd , speex , squashfs-tools , systemd , tiff , unzip , vim , virglrenderer , webkitgtk , xz , zlib

• There are 318 opensource component version upgrades

https://docs.yoctoproject.org/migration-guides/release-notes-4.0.html#recipe-upgrades-in-4-0

• Major opensource upgrades (Dunfell → Kirkstone) are :- GCC (9.3 → 11.3) , glibc (2.31 → 2.35) , glib-2.0 (2.62.4 → 2.72.3), systemd (244.3 → 250.5) , busybox (1.31.1 → 1.35.0)

• Netflix upgrade, youtube

• GCC compiler

• Maintainability - Dunfell 4 years ; Kirkstone 2 years ; CVE Dunfell is sill open (Refer Yocto mailing list), Upstream dunfell 3.1.24 has open CVE

• Build time - reduce number of default dependency (make build faster in first/second time)

• meta-rust is in core

• software bill of material (security infrastructure)

• share state - c standard. faster sstsate performance due to decompression standard cstd (twice faster than xz)

• license management tool improvement (more accurate license compliance)

• Kirkstone need minimum 4.x kernel (refer systemd)

• linux_kernel_header does not mandate

      Reference :- https://docs.yoctoproject.org/migration-guides/release-notes-4.0.html 
      Reference :-https://code.rdkcentral.com/r/plugins/gitiles/manifests/+/refs/heads/kirkstone/oe-layers.xml (Kirkstone specific OE layers )
      

RPI4 Kirkstone build instructions

RPI4 32-bit build

repo init -u https://code.rdkcentral.com/r/manifests -b kirkstone -m rdkb-extsrc.xml  
repo sync --no-clone-bundle --no-tags  

#Need to Choose below configuration for Rpi4-32 bit
MACHINE=raspberrypi4-rdk-broadband source meta-cmf-raspberrypi/setup-environment

bitbake rdk-generic-broadband-image

RPI4 64-bit build

repo init -u https://code.rdkcentral.com/r/manifests -b kirkstone -m rdkb-extsrc.xml 
repo sync --no-clone-bundle --no-tags

#Need to Choose below configuration for Rpi4-64 bit
MACHINE=raspberrypi4-64-rdk-broadband source meta-cmf-raspberrypi/setup-environment

bitbake rdk-generic-broadband-image

Additional information for building a project:

   Docker file for ubuntu 20.04 and 18.04

Dockerfile-20-4.zip

ubuntu_18.04.txt.zip

Sanity Test cases :

References :

We captured all the kirkstone build errors and its fixes in this link RDK-B RPI4 64 bit and RDK-B RPI4 32 bit .

Code Commits

https://code.rdkcentral.com/r/q/topic:RPI_kirkstone_migration

Kirkstone (Yocto 4.0) - Epic Story:

RDK-B RPI4 64 bit:

REFPLTB-1805 - Getting issue details... STATUS  

RDK-B RPI4 32 bit:
REFPLTB-1806 - Getting issue details... STATUS

Jira Tickets :

Technical support:

support@rdkcentral.com