Beagleboard:BeagleBoneBlack Debian

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Revision as of 14:53, 21 January 2020 by RobertCNelson (talk | contribs) (Debian Image Testing Snapshots: 2020-01-01/2020-01-20)
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This page is about running the armhf port of Debian distribution at BeagleBoard. The latest release beagleboard.org image can be found at: http://beagleboard.org/latest-images

Contents

Checking The Debian Image Version

You should check the version of the image on the microSD/eMMC by opening the ID.txt file in the FAT partition.

root@beaglebone:~# cat /etc/dogtag
BeagleBoard.org BeagleBone Debian Image 2014-03-19

This file can also be accessed via a PC (Windows/Mac/Linux) via either mounting the FAT partition directly off the microSD card or via the usb interface (flash drive).

Installing

TI PRU Code Generation Tools

http://software-dl.ti.com/codegen/non-esd/downloads/download.htm#PRU

Install:

sudo apt-get update
sudo apt-get install ti-pru-cgt-installer

Older rootfs (when above package doesn't exist):

wget http://downloads.ti.com/codegen/esd/cgt_public_sw/PRU/2.1.1/ti_cgt_pru_2.1.1_armlinuxa8hf_busybox_installer.sh
chmod +x ti_cgt_pru_2.1.1_armlinuxa8hf_busybox_installer.sh
sudo ./ti_cgt_pru_2.1.1_armlinuxa8hf_busybox_installer.sh

FAQ

PocketBeagle Support

Any images after 2017-09-21 will have support for the PocketBeagle

Expanding File System Partition On A microSD

By default the microSD image is only about 2GB in size, to fully expand the partition to the full size of your microSD card simple run.

cd /opt/scripts/tools/
git pull || true
sudo ./grow_partition.sh
sudo reboot

On the next reboot, [df -h] should show the full microSD card size.

Flashing eMMC

To set up the standalone microSD image to automatically flash the eMMC on powerup. Login as debian (password = temppwd) and edit /boot/uEnv.txt with nano (sudo nano /boot/uEnv.txt) or your preferred editor.

In /boot/uEnv.txt:

##enable BBB: eMMC Flasher:
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

Change to:

##enable BBB: eMMC Flasher:
cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

Optional, update Flasher Scripts:

cd /opt/scripts/
git pull

and reboot the system, it'll flash the eMMC on the next bootup. (make sure to remove the microSD after flashing is complete, otherwise it'll just keep on re-flashing the eMMC)

Kernel Upgrade

We can't ship support for everything on release day, so we push out new kernels as fixes, support for new capes, etc are posted on the beagleboard.org mainline list.

cd /opt/scripts/tools/
git pull
sudo ./update_kernel.sh
sudo reboot

Installing kernel headers

If you want to build a kernel module natively, you'll need to install the correct kernel headers.

sudo apt-get install linux-headers-`uname -r`

In a Makefile, perform:

sudo apt-get install linux-headers-$(shell uname -r)

Loading custom capes

WARNING, this is now deprecated, please use U-Boot overlays

Due to limitations in debian wheezy's userspace, the use of an initramfs, and having firmware builtin to the kernel. It is currently not possible to load "custom" capes via: capemgr.enable_partno=xyz. Instead an init script has been set up to load the cape/capes as soon as possible.

Built-in Cape:

capemgr.enable_partno=BB-SPIDEV1

slot #7: Requesting part number/version based 'BB-SPIDEV1-00A0.dtbo
slot #7: Requesting firmware 'BB-SPIDEV1-00A0.dtbo' for board-name 'Override Board Name', version '00A0'
slot #7: dtbo 'BB-SPIDEV1-00A0.dtbo' loaded; converting to live tree

Custom External Cape:

capemgr.enable_partno=BB-SPI1-01

slot #7: Requesting part number/version based 'BB-SPI1-01-00A0.dtbo
slot #7: Requesting firmware 'BB-SPI1-01-00A0.dtbo' for board-name 'Override Board Name', version '00A0'
failed to load firmware 'BB-SPI1-01-00A0.dtbo'
loader: failed to load slot-7 BB-SPI1-01:00A0 (prio 0)

Workaround:

add "CAPE=BB-SPI1-01" to /etc/default/capemgr

Privileged echo

As a normal user, you can not "sudo echo 'something' >> /etc/privilegedfile"

sudo sh -c "echo 'something' >> /etc/privilegedfile"

Timezone

By default this image is set up to display time in utc mode. If you would like to change this to your local region.

dpkg-reconfigure tzdata

or:

echo "Europe/Zurich" > /etc/timezone 
dpkg-reconfigure -f noninteractive tzdata

Jessie Timezone

List of available timezones:

timedatectl list-timezones

Set timezone:

sudo timedatectl set-timezone America/North_Dakota/Center

W: GPG error: http://debian.beagleboard.org wheezy-bbb

W: GPG error: http://debian.beagleboard.org wheezy-bbb Release:
The following signatures were invalid:
KEYEXPIRED 1418840246 KEYEXPIRED 1418840304 KEYEXPIRED 1418840246 KEYEXPIRED 1418840246 KEYEXPIRED 1418840304

Note this directions are version dependent, so double check your version:

debian@beaglebone:~$ cat /etc/dogtag 
BeagleBoard.org BeagleBone Debian Image 2014-05-14

2014-05-14 GPG error: Disable: http://debian.beagleboard.org repo:

sudo nano /etc/apt/sources.list

Change:

deb [arch=armhf] http://debian.beagleboard.org/packages wheezy-bbb main
#deb-src [arch=armhf] http://debian.beagleboard.org/packages wheezy-bbb main

To:

#deb [arch=armhf] http://debian.beagleboard.org/packages wheezy-bbb main
#deb-src [arch=armhf] http://debian.beagleboard.org/packages wheezy-bbb main
sudo apt-get update

2014-05-14 GPG error: Optional enable: http://repos.rcn-ee.com/

Download archive-keyring:

wget https://rcn-ee.com/repos/debian/pool/main/r/rcn-ee-archive-keyring/rcn-ee-archive-keyring_2016.04.24~bpo70+20160424+1_all.deb
sudo dpkg -i rcn-ee-archive-keyring_*_all.deb

Add repo to /etc/apt/sources.list

sudo sh -c "echo 'deb [arch=armhf] http://repos.rcn-ee.com/debian wheezy main' >> /etc/apt/sources.list"
sudo sh -c "echo '#deb-src [arch=armhf] http://repos.rcn-ee.com/debian wheezy main' >> /etc/apt/sources.list"

Update packages:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install npm c9-core-installer --reinstall

Adding bb.org-overlays to jessie console image

Currently by default, the console image doesn't include the *.dtbo overlays.

Install build requirements: (add's 145Mb to the console image)

sudo apt-get update
sudo apt-get install build-essential git-core device-tree-compiler

Clone bb.org-overlays repo:

git clone https://github.com/beagleboard/bb.org-overlays/
cd ./bb.org-overlays/
./install.sh

i take full responsibility for knowing my beagle is now insecure

as of 2017-02-19, BeagleBoard images now longer enable these insecure options by default, you are free to recreate them as you wish.

remove root password

root_password=$(cat /etc/shadow | grep root | awk -F ':' '{print $2}')
sed -i -e 's:'$root_password'::g' /etc/shadow

ssh root@beaglebone.local

sed -i -e 's:PermitEmptyPasswords no:PermitEmptyPasswords yes:g' /etc/ssh/sshd_config
sed -i -e 's:UsePAM yes:UsePAM no:g' /etc/ssh/sshd_config
sed -i -e 's:PermitRootLogin without-password:PermitRootLogin yes:g' /etc/ssh/sshd_config

sudo no password required

echo "debian  ALL=NOPASSWD: ALL" >>/etc/sudoers

U-Boot Overlays

Check via serial

U-Boot SPL 2018.01-rc2-00002-g23388d96ac (Dec 19 2017 - 13:20:06)
Trying to boot from MMC1

U-Boot 2018.01-rc2-00002-g23388d96ac (Dec 19 2017 - 13:20:06 -0600), Build: jenkins-github_Bootloader-Builder-19

Check via system

debian@beaglebone:~$ cd /opt/scripts/tools/
debian@beaglebone:/opt/scripts/tools$ git pull
debian@beaglebone:/opt/scripts/tools$ sudo ./version.sh | grep bootloader
bootloader:[microSD-(push-button)]:[/dev/mmcblk0]:[U-Boot 2018.01-rc2-00002-g23388d]

To upgrade your version of U-Boot:

debian@beaglebone:~$ cd /opt/scripts/tools/developers/
debian@beaglebone:/opt/scripts/tools/developers$ sudo ./update_bootloader.sh
debian@beaglebone:/opt/scripts/tools/developers$ sudo reboot

U-Boot Capes added:

NHD-7.0CTP-CAPE Family
BB-BONE-NH7C-01-A0.dtbo (first added in: 2017.05-rc2-00002-g86566339a9 (Apr 28 2017 - 10:18:57))

U-Boot /boot/uEnv.txt configuration

/boot/uEnv.txt:

enable_uboot_overlays=1

U-Boot Disable on-board devices

To Disable eMMC:

disable_uboot_overlay_emmc=1

To Disable HDMI VIDEO & AUDIO:

disable_uboot_overlay_video=1

To Disable HDMI AUDIO:

disable_uboot_overlay_audio=1

To Disable WL1835:

disable_uboot_overlay_wireless=1

To Disable BB-ADC: (first added in: 2017.05-rc1-00002-g35aecb22fe (Apr 05 2017 - 16:51:58))

disable_uboot_overlay_adc=1

U-Boot Override external capes

Cape device tree overlays (src): https://github.com/beagleboard/bb.org-overlays/
Debian package: bb-cape-overlays
uboot_overlay_addr0=/lib/firmware/<file0>.dtbo
uboot_overlay_addr1=/lib/firmware/<file1>.dtbo
uboot_overlay_addr2=/lib/firmware/<file2>.dtbo
uboot_overlay_addr3=/lib/firmware/<file3>.dtbo

If for some reason you need to disable the auto-loading of any of ^ those, use the option that matches your addrX: (first added in: 2017.03-00002-gbfe60d6057 (Mar 28 2017 - 15:32:51))

disable_uboot_overlay_addr0=1
disable_uboot_overlay_addr1=1
disable_uboot_overlay_addr2=1
disable_uboot_overlay_addr3=1

4 more capes can be loaded via: (first added in: 2017.03-00002-gbfe60d6057 (Mar 28 2017 - 15:32:51))

uboot_overlay_addr4=/lib/firmware/<file4>.dtbo
uboot_overlay_addr5=/lib/firmware/<file5>.dtbo
uboot_overlay_addr6=/lib/firmware/<file6>.dtbo
uboot_overlay_addr7=/lib/firmware/<file7>.dtbo

Plus one custom cape:

dtb_overlay=/lib/firmware/<file8>.dtbo

U-Boot PRU Options

With v4.4.x-ti PRU via remoteproc can be enabled by:

uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-4-TI-00A0.dtbo

With v4.9.x-ti PRU via remoteproc can be enabled by:

uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-9-TI-00A0.dtbo

With v4.14.x-ti PRU via remoteproc can be enabled by:

uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo

With v4.19.x-ti PRU via remoteproc can be enabled by:

uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo

With (all (minus bugs)): PRU via uio:

uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo

U-Boot Cape Universal

Utilize https://github.com/cdsteinkuehler/beaglebone-universal-io config-pin.

Cape Universal Supported Boards:

BeagleBone Black
BeagleBone Black Wireless
BeagleBone Green
BeagleBone Green Wireless
Element14 BeagleBone Black Industrial
MENTOREL BeagleBone uSomIQ
SanCloud BeagleBone Enhanced

Not Supported needs work/testing/etc

Arrow BeagleBone Black Industrial (different video phy)
Neuromeka BeagleBone Air (untested)

To enable, in /boot/uEnv.txt add:

enable_uboot_cape_universal=1

Where did the slots file go?

Kernel Overlays are going bye-bye, too many bugs, too many race conditions, no kernel maintainers interested. We've said our farewells and U-Boot Overlays is the way forward: https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays With multiple parties working on the U-Boot infrastructure.

The rough transition plan is:

Stage 1: Disable Kernel Overlays (bone_capemgr.uboot_capemgr_enabled=1 is passed thru /proc/cmdline)
Stage 2: Disable the slots file (/sys/devices/platform/bone_capemgr/slots) (v4.4.x -> 4.14.x)
Stage 3: Disable bone_capemgr dir (/sys/devices/platform/bone_capemgr/) (v4.15.x+)

Stage 1 is complete, all current images use U-Boot Overlays by default. Stage 2 is currently in progress, as it is not recommended to "load" anything into the slots file while U-Boot Overlays are in control. Stage 3, will take longer, as many applications only need to know the "bone_capemgr" directory is available.

If you don't like the direction we are heading, simply disable, "enable_uboot_overlays=1" in /boot/uEnv.txt..

#I will be on my own with Kernel Overlays:
#enable_uboot_overlays=1

Debian Build Instructions

You'll want a fairly beefy ARM system to run this script.

git clone git://github.com/beagleboard/image-builder.git
cd image-builder
./beagleboard.org_image.sh

Output of the autobuilder can be found at http://builds.beagleboard.org.

Debian Releases

http://beagleboard.org/latest-images

Debian Image Testing Snapshots

To turn “microSD/Standalone” images into eMMC flasher images, edit the /boot/uEnv.txt file on the Linux partition on the microSD card and uncomment the line with cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh. Enabling this will cause booting the microSD card to flash the eMMC. “Flasher” images already enable this line. See Flashing eMMC

Debian 9 (Stretch) - Monthly

https://wiki.debian.org/DebianStretch

Debian Stretch LXQt Snapshot

2020-01-01 notes

* Kernel: 4.14.108-ti-r124
* default username:password is [debian:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-9.11-lxqt-armhf-2020-01-01-4gb.img.xz f842a550693a060ff89b2441cff976bb5100447d516010e02d9bbe416a54d197 bmap
eMMC flasher bone-eMMC-flasher-debian-9.11-lxqt-armhf-2020-01-01-4gb.img.xz d653062301dcf2c796066c171c71b74ff081915ca3c3329da6257007726a6c38 bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-9.11-lxqt-armhf-2020-01-01-4gb.img.xz 82265f9aa470a5d46b7645d5154c41582783158566cb704e87a701e49c98a471 bmap

Debian Stretch LXQt TIDL Snapshot

2020-01-01 notes

* Kernel: 4.14.108-ti-r124
* default username:password is [debian:temppwd]
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-9.11-lxqt-tidl-armhf-2020-01-01-6gb.img.xz d9d2378e9f86c04b2645e44068c34be394835ff1dc8ba5fb65673c08cb9874be bmap
eMMC flasher am57xx-eMMC-flasher-debian-9.11-lxqt-tidl-armhf-2020-01-01-6gb.img.xz 7fd6aee1b9963d9df8758899a5da0e4526e85eacfe53b1d526b32794a33720d1 bmap

Debian Stretch LXQt Snapshot for BeagleBoard-xM

2020-01-01 notes

* Kernel: 5.4.5-armv7-x13
* default username:password is [debian:temppwd]
(BeagleBoard-xM)
Target Media: microSD Image File sha256sum bmap
microSD bbxm-debian-9.11-lxqt-xm-armhf-2020-01-01-4gb.img.xz c7191825dff4c2db4d00e03c78ba3ecd19e76dadecc74d71dc49f09dc5a452a7 bmap

Debian Stretch IOT Snapshot

2020-01-01 notes

* Kernel: 4.14.108-ti-r124
* default username:password is [debian:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-9.11-iot-armhf-2020-01-01-4gb.img.xz 4da61b54babb46d038a37b1e04d1bc2df24040777e871a1ac374288a167d4df6 bmap
eMMC flasher bone-eMMC-flasher-debian-9.11-iot-armhf-2020-01-01-4gb.img.xz 0d55074082a979f74e246121992fb1b1dcb244e6c6b483ed455280de6f2adb91 bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-9.11-iot-armhf-2020-01-01-4gb.img.xz d32e8f2c6ac063548528c7ef80384c3095a422e7cdb2f616dc0eb7b445c8eee8 bmap
eMMC flasher am57xx-eMMC-flasher-debian-9.11-iot-armhf-2020-01-01-4gb.img.xz 6fb7c5afd72d8d1081ee9b30073a6393b5bb2c012a30cd1c0a0d85db7786b4f4 bmap

Debian Stretch Console Snapshot

2020-01-01 notes

* Kernel: 4.14.108-ti-r124
* default username:password is [debian:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-9.11-console-armhf-2020-01-01-1gb.img.xz 710a0e3b4e343471d5d525a5a40d8fee44a6801f15774962247f11a5c5f5c6c3 bmap
eMMC flasher bone-eMMC-flasher-debian-9.11-console-armhf-2020-01-01-1gb.img.xz 596130e4dd5226f215645d0b337db37f92aef6e9d9cb7889454bce8c91bce9f5 bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-9.11-console-armhf-2020-01-01-1gb.img.xz f16dc20f06145d18508b2be1a1d3f15a7b86e3215ca30ec92c04799bf947942c bmap
eMMC flasher am57xx-eMMC-flasher-debian-9.11-console-armhf-2020-01-01-1gb.img.xz cb8fa90cec1bd69ccbc5722f669228b17468b0900248d98de31998d1e55a7b4e bmap

BBW/BBB (All Revs) Machinekit

2020-01-20 notes

* Kernel: 4.19.82-bone-rt-r41
* default username:password is [machinekit:machinekit]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-9.11-machinekit-armhf-2020-01-20-4gb.img.xz edacad772c329a2f157ad8f156788eccb150302f2835bee79e7ececaba333a6e bmap

Debian 10 (Buster) - Weekly

https://wiki.debian.org/DebianBuster

Debian Buster IOT Snapshot

2020-01-20 notes

* Kernel: 4.19.82-ti-r31
* default username:password is [debian:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-10.2-iot-armhf-2020-01-20-4gb.img.xz da901c033d20974f9af91ec80033fcf2f3fef8124252f37a1cd292475affe036 bmap
eMMC flasher bone-eMMC-flasher-debian-10.2-iot-armhf-2020-01-20-4gb.img.xz 5e77bae6e4c19bda2f9347adf19b1b45d0419c2ce56aba6d2c6be80791f6334f bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-10.2-iot-armhf-2020-01-20-4gb.img.xz c154599ff0d4a6ff84d738a81f68d3aff49199ffda5776ee4dbc5c3977d21c95 bmap
eMMC flasher am57xx-eMMC-flasher-debian-10.2-iot-armhf-2020-01-20-4gb.img.xz 631d5672a9e4fcfac5ff58f860e63fcb26402a3627eaf6808e694453fae6690b bmap

Debian Buster Console Snapshot

2020-01-20 notes

* Kernel: 4.19.82-ti-r31
* default username:password is [debian:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-debian-10.2-console-armhf-2020-01-20-1gb.img.xz 160351ee8074368250d42ac09055f1454a06406229586ffbb2a9c934b23a3434 bmap
eMMC flasher bone-eMMC-flasher-debian-10.2-console-armhf-2020-01-20-1gb.img.xz 9e19728ed14f4e4e2c9343de1e01de9cd28bc3ea7b9a5b16f763a936af655b02 bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-debian-10.2-console-armhf-2020-01-20-1gb.img.xz 105c046c56bbde47b441054fac2fe25388fc7e8a6ab84954ea8c44de614417b9 bmap
eMMC flasher am57xx-eMMC-flasher-debian-10.2-console-armhf-2020-01-20-1gb.img.xz 728312f675c26cb29c273876c4d5da5f63ae686f1098313121fee423951a0038 bmap

Debian Buster Console Snapshot for BeagleBoard-xM

2020-01-20 notes

* Kernel: 5.4.10-armv7-x15
* default username:password is [debian:temppwd]
(BeagleBoard-xM)
Target Media: microSD Image File sha256sum bmap
microSD bbxm-debian-10.2-console-xm-armhf-2020-01-20-1gb.img.xz bb13790e2c8ef4ce20be77e13f5de90689777e20c2f7e44fe2e2671f298757c2 bmap

ROS (ROS Melodic Morenia) - Weekly

http://wiki.ros.org/melodic/Installation

ROS Melodic Morenia

2020-01-20 notes

* Kernel: 4.19.82-ti-rt-r31
* default username:password is [beagle:temppwd]
(AM335x based BeagleBone's and PocketBeagle)
Target Media: microSD Image File sha256sum bmap
microSD bone-ubuntu-18.04.3-ros-iot-armhf-2020-01-20-6gb.img.xz 3e3be06e5fa8dbfd510b4f752e17abc48bd07a37076b11f9da896e8d254e580c bmap
(BeagleBoard-X15 and BeagleBone-AI)
Target Media: microSD Image File sha256sum bmap
microSD am57xx-ubuntu-18.04.3-ros-iot-armhf-2020-01-20-6gb.img.xz fadb0a1c43af6b69aba53ef21723aaf0856f7c46411aa88f163595ba73a75377 bmap

Kernel Options

General apt syntax for searching and installing a specific kernel:

sudo apt-get update
sudo apt-cache search linux-image | grep <branch>
sudo apt-get install linux-image-<specific version>
sudo reboot

Latest kernel script

cd /opt/scripts/tools/
git pull
sudo /opt/scripts/tools/update_kernel.sh <OPTIONS>

4.14.x-ti

beagleboard.org patchset: https://github.com/beagleboard/linux/tree/4.14
4.14.x-ti All BeagleBone Variants and BeagleBoard-X15
sudo /opt/scripts/tools/update_kernel.sh --ti-channel --lts-4_14
4.14.x-ti All BeagleBone Variants and BeagleBoard-X15 + RT
sudo /opt/scripts/tools/update_kernel.sh --ti-rt-channel --lts-4_14

4.19.x-ti

beagleboard.org patchset: https://github.com/beagleboard/linux/tree/4.19
4.19.x-ti All BeagleBone Variants and BeagleBoard-X15
sudo /opt/scripts/tools/update_kernel.sh --ti-channel --lts-4_19
4.19.x-ti All BeagleBone Variants and BeagleBoard-X15 + RT
sudo /opt/scripts/tools/update_kernel.sh --ti-rt-channel --lts-4_19

Mainline (4.14.x lts)

4.14.x All BeagleBone Variants
sudo /opt/scripts/tools/update_kernel.sh --bone-kernel --lts-4_14
4.14.x All BeagleBone Variants + RT
sudo /opt/scripts/tools/update_kernel.sh --bone-rt-kernel --lts-4_14

Mainline (4.19.x lts)

4.19.x All BeagleBone Variants
sudo /opt/scripts/tools/update_kernel.sh --bone-kernel --lts-4_19
4.19.x All BeagleBone Variants + RT
sudo /opt/scripts/tools/update_kernel.sh --bone-rt-kernel --lts-4_19