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→Building the Linux kernel
It is assumed that PetaLinux is already installed on the host machine (for more details, please refer to [https://www.xilinx.com/support/documentation-navigation/see-all-versions.html?xlnxproducttypes=Design%20Tools&xlnxdocumentid=UG1144 ''UG1144 - PetaLinux Tools Documentation: Reference Guide'']).
== Building the Linux kernel Kernel ==
First of all, set up the PetaLinux environment:
<pre class="workstation-terminal">
[INFO] sourcing bitbake
INFO: bitbake virtual/kernel
Loading cache: 100% |######################################################################################################################| Time: 0:00:00Loaded 3234 entries from dependency cache.Parsing recipes: 100% |####################################################################################################################| Time: 0:0200:1403Parsing of 2446 .bb files complete (0 2410 cached, 2446 36 parsed). 3236 targets, 224 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies
Initialising tasks: 100% |#################################################################################################################| Time: 0:00:2257Checking sstate mirror object availability: 100% |#########################################################################################| Time: 0:00:1321
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
linux-xlnx-4.9-belk-4.0.0+git999-r0 do_compile: NOTE: linux-xlnx: compiling from external source tree /home/dvdk/devel/bora/prj/bora1bora_1/build/../components/ext_sources/linux-xlnxfsbl-2017.2+gitAUTOINC+122565ec40-r0 do_compile: NOTE: fsbl: compiling from external source tree /opt/petalinux/tools/hsm/data/embeddedswNOTE: Tasks Summary: Attempted 2410 tasks of which 2349 1869 didn't need to be rerun and all succeeded.
INFO: Copying Images from deploy to images
INFO: Creating images/linux directory
You can also run generated qemu images with a command like 'runqemu qemux86'
INFO: Adding user layer: /home/dvdk/devel/bora/prj/bora1bora_1/project-spec/meta-user
INFO: generating uImage
INFO: bitbake -R /home/dvdk/devel/bora/prj/bora1bora_1/build/conf/kerneltype.conf virtual/kernel Parsing recipes: 100% |####################################################################################################################| Time: 0:0103:5609
Parsing of 2446 .bb files complete (0 cached, 2446 parsed). 3236 targets, 224 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies
Initialising tasks: 100% |#################################################################################################################| Time: 0:00:1617
Checking sstate mirror object availability: 100% |#########################################################################################| Time: 0:00:12
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
linux-xlnx-4.9-belk-4.0.0+git999-r0 do_compile: NOTE: linux-xlnx: compiling from external source tree /home/dvdk/devel/bora/prj/bora1bora_1/build/../components/ext_sources/linux-xlnxNOTE: Tasks Summary: Attempted 2410 tasks of which 2374 2349 didn't need to be rerun and all succeeded.
</pre>
After the build is completed, the <code>uImage</code> file and the device tree blob (<code>system.dtb</code>) are located in the <code>images/linux</code> directory.
