Hello,
I haven’t done any manual downloads related to this process before. When I run the following command to check for the kernel directory:
ls /usr/src/kernel
I get the following output:
ls: cannot access '/usr/src/kernel': No such file or directory
Could you please guide me on how to proceed from here?
Thank you!
The “Driver Package Sources” in this screenshot shared by you has the source code.
Hello,
I am trying to set up the kernel source code for customization, but I am encountering issues. Here’s what I have done so far:
Driver Package (BSP) Sources file (public_sources.tbz2) from the Jetson Linux archive.tar xf ~/Downloads/public_sources.tbz2 -C ~/Linux_for_Tegra/source
kernel directory and checked its contents:cd ~/Linux_for_Tegra/source/kernel
ls
The output was:
kernel-jammy-src Makefile
kernel-jammy-src:kernel-jammy-src directory to check its contents:cd kernel-jammy-src
ls
The directory appears to be empty; no files or folders are listed.
5. Re-extracting to Confirm:
I repeated the extraction process to ensure everything was done correctly:
tar xf ~/Downloads/public_sources.tbz2 -C ~/Linux_for_Tegra/source
However, I got the same result: the kernel-jammy-src directory is still empty.
6. My Question:
public_sources.tbz2 file be incomplete or missing required files?I appreciate your help in resolving this issue.
Thank you!
Hi,
What is the exact content you saw in public_sources.tbz2? Have you ever used some GUI tool to open it before doing extract?
Even public sources won’t just give you a “kernel-jammy-src”. It has multiple tarball inside of it too.
Hello,
Here is what I have done so far with the public_sources.tbz2 file:
rm -rf ~/Linux_for_Tegra/source/*
public_sources.tbz2 File Again:tar xf ~/Downloads/public_sources.tbz2 -C ~/Linux_for_Tegra/source
ls ~/Linux_for_Tegra/source
The output was:
Linux_for_Tegra
Then I checked further inside:
ls ~/Linux_for_Tegra/source/Linux_for_Tegra/source/
The output was:
argus_cam_libavencoder_src.tbz2
argus_cam_libavencoder_src.tbz2.sha1sum
atf_src.tbz2
...
kernel_src.tbz2
kernel_src.tbz2.sha1sum
nvidia_kernel_display_driver_source.tbz2
nvidia_kernel_display_driver_source.tbz2.sha1sum
...
~/Linux_for_Tegra/source/Linux_for_Tegra/source/)?kernel_src.tbz2 and/or nvidia_kernel_display_driver_source.tbz2?Thank you for your guidance!
Do you have the correct release tag?
When I checked, the output is that:
Then download and untar the correct BSP then run the sync_source script. In /Linux_for_tegra/source.
I use the 36.4 tar and know for fact it is in that download, so find the correct version and use the correct release tag.
https://developer.nvidia.com/downloads/embedded/l4t/r36_release_v4.0/sources/public_sources.tbz2
I just checked another machine that we did a download and it is missing the script???
fred@eng-dev6:~/nvidia/public_sources/Linux_for_Tegra$ tree
.
└── source
└── public
├── argus_cam_libavencoder_src.tbz2
├── argus_cam_libavencoder_src.tbz2.sha1sum
├── atf_src.tbz2
├── atf_src.tbz2.sha1sum
├── dtc-1.4.5.tbz2
├── dtc-1.4.5.tbz2.sha1sum
├── FreeRTOSV8.1.2_src.tbz2
├── FreeRTOSV8.1.2_src.tbz2.sha1sum
├── gstegl_src.tbz2
├── gstegl_src.tbz2.sha1sum
├── gstjpeg_src.tbz2
├── gstjpeg_src.tbz2.sha1sum
├── gst-nvarguscamera_src.tbz2
├── gst-nvarguscamera_src.tbz2.sha1sum
├── gst-nvcompositor_src.tbz2
├── gst-nvcompositor_src.tbz2.sha1sum
├── gst-nvtee_src.tbz2
├── gst-nvtee_src.tbz2.sha1sum
├── gst-nvv4l2camera_src.tbz2
├── gst-nvv4l2camera_src.tbz2.sha1sum
├── gst-nvvidconv_src.tbz2
├── gst-nvvidconv_src.tbz2.sha1sum
├── gst-nvvideo4linux2_src.tbz2
├── gst-nvvideo4linux2_src.tbz2.sha1sum
├── kernel_src.tbz2
├── kernel_src.tbz2.sha1sum
├── libgstnvcustomhelper_src.tbz2
├── libgstnvcustomhelper_src.tbz2.sha1sum
├── libgstnvdrmvideosink_src.tbz2
├── libgstnvdrmvideosink_src.tbz2.sha1sum
├── libgstnvvideosinks_src.tbz2
├── libgstnvvideosinks_src.tbz2.sha1sum
├── libnl-3.5.0.tbz2
├── libnl-3.5.0.tbz2.sha1sum
├── libv4l2_nvargus_src.tbz2
├── libv4l2_nvargus_src.tbz2.sha1sum
├── nvgstapps_src.tbz2
├── nvgstapps_src.tbz2.sha1sum
├── nvidia-jetson-optee-source.tbz2
├── nvidia-jetson-optee-source.tbz2.sha1sum
├── nvidia_kernel_display_driver_source.tbz2
├── nvidia_kernel_display_driver_source.tbz2.sha1sum
├── nvidia-xconfig_src.tbz2
├── nvidia-xconfig_src.tbz2.sha1sum
├── nv_public_src_build.sh
├── nv_public_src_build_tos.sh
├── nvsample_cudaprocess_src.tbz2
├── nvsample_cudaprocess_src.tbz2.sha1sum
├── nvsci_headers.tbz2
├── nvsci_headers.tbz2.sha1sum
├── nvsci_samples_src.tbz2
├── nvsci_samples_src.tbz2.sha1sum
├── opencv_gst_samples_src.tbz2
├── opencv_gst_samples_src.tbz2.sha1sum
├── openwfd_headers.tbz2
├── openwfd_headers.tbz2.sha1sum
├── openwfd_samples.tbz2
├── openwfd_samples.tbz2.sha1sum
├── public_sources_sha.txt
├── spe-freertos-bsp.tbz2
├── spe-freertos-bsp.tbz2.sha1sum
├── v4l2_libs_src.tbz2
└── v4l2_libs_src.tbz2.sha1sum
2 directories, 63 files
This download has a date stamp from 2023, not sure where it came from but is not the one you need.
Just another reminder before going anything further.
Actually the next release 36 version would come out soon. If you don’t want to build kernel, then you could wait for next version.
kernel_src.tbz2 and nvidia_kernel_display_driver_source.tbz2 under the Linux_for_Tegra/source directory.nvidia_kernel_display_driver_source content did not include tegra_defconfig or any .defconfig file. This led to the idea of manually creating the required configuration file.find . -name "*.defconfig" to search for tegra_defconfig, but it was not found in the available sources. This raises the possibility of missing or incomplete source files.tegra_defconfig file prevented us from proceeding with the configuration step.menuconfig, but this process remains incomplete..defconfig file or using a default configuration suggested by NVIDIA, but no concrete solution has been found yet.tegra_defconfig file.At this stage, the problem has become too convoluted, and progress is stalled. We are unable to acquire the missing sources or generate the necessary configuration.
We are seeking assistance on the following:
tegra_defconfig or an equivalent configuration file?Any advice or guidance would be greatly appreciated. Thank you! 🙏
Here is the script, I am not sure where this was downloaded from. Drop it in /Linux_for_Tegra/source/
$sudo source_sync.sh -k -t jetson_36.4
#!/bin/bash
# SPDX-FileCopyrightText: Copyright (c) 2012-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# This script sync's NVIDIA's version of
# 1. the kernel source
# from nv-tegra, NVIDIA's public git repository.
# The script also provides opportunities to the sync to a specific tag
# so that the binaries shipped with a release can be replicated.
#
# Usage:
# By default it will download all the listed sources
# ./source_sync.sh
# Use the -t <TAG> option to provide the TAG to be used to sync all the sources.
# Use the -k <TAG> option to download only the kernel and device tree repos and optionally sync to TAG
# For detailed usage information run with -h option.
#
# verify that git is installed
if ! which git > /dev/null ; then
echo "ERROR: git is not installed. If your linux distro is 10.04 or later,"
echo "git can be installed by 'sudo apt-get install git-core'."
exit 1
fi
# source dir
LDK_DIR=$(cd $(dirname $0) && pwd)
# script name
SCRIPT_NAME=$(basename $0)
# info about sources.
# NOTE: *Add only kernel repos here. Add new repos separately below. Keep related repos together*
# NOTE: nvethrnetrm.git should be listed after "linux-nv-oot.git" due to nesting of sync path
SOURCE_INFO="
k:kernel/kernel-jammy-src:nv-tegra.nvidia.com/3rdparty/canonical/linux-jammy.git:
k:nvgpu:nv-tegra.nvidia.com/linux-nvgpu.git:
k:nvidia-oot:nv-tegra.nvidia.com/linux-nv-oot.git:
k:hwpm:nv-tegra.nvidia.com/linux-hwpm.git:
k:nvethernetrm:nv-tegra.nvidia.com/kernel/nvethernetrm.git:
k:kernel-devicetree:nv-tegra.nvidia.com/linux/kernel-devicetree.git:
k:hardware/nvidia/t23x/nv-public:nv-tegra.nvidia.com/device/hardware/nvidia/t23x-public-dts.git:
k:hardware/nvidia/tegra/nv-public:nv-tegra.nvidia.com/device/hardware/nvidia/tegra-public-dts.git:
k:nvdisplay:nv-tegra.nvidia.com/tegra/kernel-src/nv-kernel-display-driver.git:
k:dtc-src/1.4.5:nv-tegra.nvidia.com/3rdparty/dtc-src/1.4.5.git:
o:tegra/argus-cam-libav/argus_cam_libavencoder:nv-tegra.nvidia.com/tegra/argus-cam-libav/argus_cam_libavencoder.git:
o:tegra/cuda-src/nvsample_cudaprocess:nv-tegra.nvidia.com/tegra/cuda-src/nvsample_cudaprocess.git:
o:tegra/gfx-src/nv-xconfig:nv-tegra.nvidia.com/tegra/gfx-src/nv-xconfig.git:
o:tegra/gst-src/gst-egl:nv-tegra.nvidia.com/tegra/gst-src/gst-egl.git:
o:tegra/gst-src/gst-jpeg:nv-tegra.nvidia.com/tegra/gst-src/gst-jpeg.git:
o:tegra/gst-src/gst-nvarguscamera:nv-tegra.nvidia.com/tegra/gst-src/gst-nvarguscamera.git:
o:tegra/gst-src/gst-nvcompositor:nv-tegra.nvidia.com/tegra/gst-src/gst-nvcompositor.git:
o:tegra/gst-src/gst-nvtee:nv-tegra.nvidia.com/tegra/gst-src/gst-nvtee.git:
o:tegra/gst-src/gst-nvv4l2camera:nv-tegra.nvidia.com/tegra/gst-src/gst-nvv4l2camera.git:
o:tegra/gst-src/gst-nvvidconv:nv-tegra.nvidia.com/tegra/gst-src/gst-nvvidconv.git:
o:tegra/gst-src/gst-nvvideo4linux2:nv-tegra.nvidia.com/tegra/gst-src/gst-nvvideo4linux2.git:
o:tegra/gst-src/nvgstapps:nv-tegra.nvidia.com/tegra/gst-src/nvgstapps.git:
o:tegra/gst-src/libgstnvcustomhelper:nv-tegra.nvidia.com/tegra/gst-src/libgstnvcustomhelper.git:
o:tegra/gst-src/libgstnvdrmvideosink:nv-tegra.nvidia.com/tegra/gst-src/libgstnvdrmvideosink.git:
o:tegra/gst-src/libgstnvvideosinks:nv-tegra.nvidia.com/tegra/gst-src/libgstnvvideosinks.git:
o:tegra/gst-src/opencv_gst_samples:nv-tegra.nvidia.com/tegra/gst-src/opencv_gst_samples.git:
o:tegra/v4l2-src/libv4l2_nvargus:nv-tegra.nvidia.com/tegra/v4l2-src/libv4l2_nvargus.git:
o:tegra/nv-sci-src/nvsci_headers:nv-tegra.nvidia.com/tegra/nv-sci-src/nvsci_headers.git:
o:tegra/nv-sci-src/nvsci_samples:nv-tegra.nvidia.com/tegra/nv-sci-src/nvsci_samples.git:
o:tegra/openwfd-src/openwfd_headers:nv-tegra.nvidia.com/tegra/openwfd-src/openwfd_headers.git:
o:tegra/optee-src/atf:nv-tegra.nvidia.com/tegra/optee-src/atf.git:
o:tegra/optee-src/nv-optee:nv-tegra.nvidia.com/tegra/optee-src/nv-optee.git:
o:tegra/spe-src/spe-freertos-bsp:nv-tegra.nvidia.com/tegra/spe-src/spe-freertos-bsp.git:
o:tegra/v4l2-src/v4l2_libs:nv-tegra.nvidia.com/tegra/v4l2-src/v4l2_libs.git:
"
# exit on error on sync
EOE=0
# after processing SOURCE_INFO
NSOURCES=0
declare -a SOURCE_INFO_PROCESSED
# download all?
DALL=1
function Usages {
local ScriptName=$1
local LINE
local OP
local DESC
local PROCESSED=()
local i
echo "Use: $1 [options]"
echo "Available general options are,"
echo " -h : help"
echo " -e : exit on sync error"
echo " -d [DIR] : root of source is DIR"
echo " -t [TAG] : Git tag that will be used to sync all the sources"
echo ""
echo "By default, all sources are downloaded."
echo "Only specified sources are downloaded, if one or more of the following options are mentioned."
echo ""
echo "$SOURCE_INFO" | while read LINE; do
if [ ! -z "$LINE" ]; then
OP=$(echo "$LINE" | cut -f 1 -d ':')
DESC=$(echo "$LINE" | cut -f 2 -d ':')
if [[ ! " ${PROCESSED[@]} " =~ " ${OP} " ]]; then
echo " -${OP} [TAG]: Download $DESC source and optionally sync to TAG"
PROCESSED+=("${OP}")
else
echo " and download $DESC source and sync to the same TAG"
fi
fi
done
echo ""
}
function ProcessSwitch {
local SWITCH="$1"
local TAG="$2"
local i
local found=0
for ((i=0; i < NSOURCES; i++)); do
local OP=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 1 -d ':')
if [ "-${OP}" == "$SWITCH" ]; then
SOURCE_INFO_PROCESSED[i]="${SOURCE_INFO_PROCESSED[i]}${TAG}:y"
DALL=0
found=1
fi
done
if [ "$found" == 1 ]; then
return 0
fi
echo "Terminating... wrong switch: ${SWITCH}" >&2
Usages "$SCRIPT_NAME"
exit 1
}
function UpdateTags {
local SWITCH="$1"
local TAG="$2"
local i
for ((i=0; i < NSOURCES; i++)); do
local OP=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 1 -d ':')
if [ "${OP}" == "$SWITCH" ]; then
SOURCE_INFO_PROCESSED[i]=$(echo "${SOURCE_INFO_PROCESSED[i]}" \
| awk -F: -v OFS=: -v var="${TAG}" '{$4=var; print}')
fi
done
}
function DownloadAndSync {
local WHAT_SOURCE="$1"
local LDK_SOURCE_DIR="$2"
local REPO_URL="$3"
local TAG="$4"
local OPT="$5"
local RET=0
if [ -d "${LDK_SOURCE_DIR}" ]; then
echo "Directory for $WHAT, ${LDK_SOURCE_DIR}, already exists!"
pushd "${LDK_SOURCE_DIR}" > /dev/null
git status 2>&1 >/dev/null
if [ $? -ne 0 ]; then
echo "But the directory is not a git repository -- clean it up first"
echo ""
echo ""
popd > /dev/null
return 1
fi
git fetch --all 2>&1 >/dev/null
popd > /dev/null
else
echo "Downloading default $WHAT source..."
git clone "$REPO_URL" -n ${LDK_SOURCE_DIR} 2>&1 >/dev/null
if [ $? -ne 0 ]; then
echo "$2 source sync failed!"
echo ""
echo ""
return 1
fi
echo "The default $WHAT source is downloaded in: ${LDK_SOURCE_DIR}"
fi
if [ -z "$TAG" ]; then
echo "Please enter a tag to sync $2 source to"
echo -n "(enter nothing to skip): "
read TAG
TAG=$(echo $TAG)
UpdateTags $OPT $TAG
fi
if [ ! -z "$TAG" ]; then
pushd ${LDK_SOURCE_DIR} > /dev/null
git tag -l 2>/dev/null | grep -q -P "^$TAG\$"
if [ $? -eq 0 ]; then
echo "Syncing up with tag $TAG..."
git checkout -b mybranch_$(date +%Y-%m-%d-%s) $TAG
echo "$2 source sync'ed to tag $TAG successfully!"
else
echo "Couldn't find tag $TAG"
echo "$2 source sync to tag $TAG failed!"
RET=1
fi
popd > /dev/null
fi
echo ""
echo ""
return "$RET"
}
# prepare processing ....
GETOPT=":ehd:t:"
OIFS="$IFS"
IFS=$(echo -en "\n\b")
SOURCE_INFO_PROCESSED=($(echo "$SOURCE_INFO"))
IFS="$OIFS"
NSOURCES=${#SOURCE_INFO_PROCESSED[*]}
for ((i=0; i < NSOURCES; i++)); do
OP=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 1 -d ':')
GETOPT="${GETOPT}${OP}:"
done
# parse the command line first
while getopts "$GETOPT" opt; do
case $opt in
d)
case $OPTARG in
-[A-Za-z]*)
Usages "$SCRIPT_NAME"
exit 1
;;
*)
LDK_DIR="$OPTARG"
;;
esac
;;
e)
EOE=1
;;
h)
Usages "$SCRIPT_NAME"
exit 1
;;
t)
TAG="$OPTARG"
PROCESSED=()
for ((i=0; i < NSOURCES; i++)); do
OP=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 1 -d ':')
if [[ ! " ${PROCESSED[@]} " =~ " ${OP} " ]]; then
UpdateTags $OP $TAG
PROCESSED+=("${OP}")
fi
done
;;
[A-Za-z])
case $OPTARG in
-[A-Za-z]*)
eval arg=\$$((OPTIND-1))
case $arg in
-[A-Za-Z]-*)
Usages "$SCRIPT_NAME"
exit 1
;;
*)
ProcessSwitch "-$opt" ""
OPTIND=$((OPTIND-1))
;;
esac
;;
*)
ProcessSwitch "-$opt" "$OPTARG"
;;
esac
;;
:)
case $OPTARG in
#required arguments
d)
Usages "$SCRIPT_NAME"
exit 1
;;
#optional arguments
[A-Za-z])
ProcessSwitch "-$OPTARG" ""
;;
esac
;;
\?)
echo "Terminating... wrong switch: $@" >&2
Usages "$SCRIPT_NAME"
exit 1
;;
esac
done
shift $((OPTIND-1))
GRET=0
for ((i=0; i < NSOURCES; i++)); do
OPT=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 1 -d ':')
WHAT=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 2 -d ':')
REPO=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 3 -d ':')
TAG=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 4 -d ':')
DNLOAD=$(echo "${SOURCE_INFO_PROCESSED[i]}" | cut -f 5 -d ':')
if [ $DALL -eq 1 -o "x${DNLOAD}" == "xy" ]; then
DownloadAndSync "$WHAT" "${LDK_DIR}/${WHAT}" "git://${REPO}" "${TAG}" "${OPT}"
tRET=$?
let GRET=GRET+tRET
if [ $tRET -ne 0 -a $EOE -eq 1 ]; then
exit $tRET
fi
fi
done
ln -sf ../../../../../../nvethernetrm nvidia-oot/drivers/net/ethernet/nvidia/nvethernet/nvethernetrm
exit $GRET
Thank you very much for the script but I think we are using different versions. For 36.4 I have version 36.3. And here’s how I know that:
Revision 3.0.
tegra_defconfig is not in use on rel-36 anymore.
What documentation are you referring to there?
I’ve searched through many resources online, visiting numerous pages and references. Unfortunately, I haven’t been able to find a clear and consistent method to proceed. When I asked here earlier, I didn’t get a response, so I tried to piece together a path forward from the various resources I found. However, the process seems to vary significantly depending on the context, and I’m struggling to figure out the correct approach for this specific setup.
Could you provide me with a detailed and step-by-step guide on how to proceed with building and customizing the kernel for Jetson Linux, considering that tegra_defconfig is no longer in use in rel-36? It would be incredibly helpful if the steps include:
tegra_defconfig.If there are official or reliable third-party resources that explain this clearly, I’d appreciate links to those as well. I want to ensure I’m following the correct process for this release.
Thank you in advance for your guidance!
Just to clarify
You already got the correct code. Please don’t think your code is wrong. It is already correct one.
-kernel_oot_modules_src.tbz2
-kernel_src.tbz2
-nvidia_kernel_display_driver_source.tbz2
We don’t provide a method to build on device directly. Only cross-compilation method is provded.
You could click the Jetson Linux Developer guide just above where you downloaded the source code. That is the official document.
Jerry already provided you the document since the beginning.
Unable to Get GPIO Working on Jetson Orin Nano - #9 by JerryChang
The real way to operate a Jetson is that you need to prepare another x86 host PC + Ubuntu there because lots of software customization is done on the host PC first and then move to Jetson side.
