Questions tagged [beagleboneblack]

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7
votes
4answers
8k views

Disable GUI on BeagleBone Black running Debian

The Debian image for the BeagleBone Black that they have on their website comes with a GUI by default. I'd like to completely disable the GUI, but in the simplest way possible. It is used as a ...
7
votes
0answers
560 views

FreeBSD on Beaglebone Black [closed]

I'm trying to install (or run from MicroSD) FreeBSD on my beaglebone black. There is a SD card image at FreeBSD.org and I downloaded, uncompressed and dd it to a microSD. Tried to boot up from this ...
5
votes
1answer
3k views

How can I get systemd to tell me why init is listening on a particular port?

I am configuring a BeableBone Black running a Debian image from BeagleBone.org. I can see that init (i.e. systemd) is listening on ports 1880 and 3000. debian@beaglebone:~$ sudo netstat -taunp | ...
4
votes
0answers
1k views

Loss of DNS on BeagleBone Black Debian

We are running a remote application on a beaglebone black in which we regularly report our external ip address retrieved from various external ip services (freegeoip.net, ipinfo.io, various STUN ...
3
votes
3answers
1k views

Reduce Boot time

I would be interested in finding ways to reduce the boot time, specially in embedded-related environments. I've read somewhere of a method to avoid the kernel to load some drivers or modules but I'm ...
3
votes
1answer
2k views

Error : Package 'mongodb' has no installation candidate

I am unable to apt-get install any packages on cloud9 for my BeagleBone because E: Package 'mongodb' has no installation candidate. I have not been able to get any packages to work due to the same ...
3
votes
2answers
10k views

Remove user and password at login in Debian 9 Stretch

I work on a project using BeagleBone Black and an LCD cape. For that, I download the current BBB IOT image from their website and installed LXDE for user interface. I want to create an application ...
3
votes
1answer
118 views

A hidden file? (most probably a wrong script )

I'm working on a script executed by Udev on insertion of a new sdcard on my Beaglebone Black under Debian Jessie. The first thing I would like my script to do is to create the /media/sdcard directory....
3
votes
1answer
6k views

boot stuck at “waiting for root device” : Beagle Bone Black

I tried booting a mainline kernel onto a Beagle Bone Black, The compilation went fine, and I have the zImage , on the uboot front I have the MLO and the u-boot.img files. I am following instructions ...
3
votes
0answers
196 views

Beaglebone Boot Fail with ALERT! PARTUUID does not exist

I have tried booting a Linux image in the eMMC through u-boot but it always drops to the busybox shell. As suggested by the busybox shell I double checked the PARTUUID (8fb410a9-01) using blkid, which ...
3
votes
0answers
780 views

Flashing to BBBw from an SD card

I have been flashing images to to my eMMC from a SD card and have not been having the normal behavior. From my research the typical process to Flash an image from an SD card is: Download a compressed ...
2
votes
1answer
268 views

How to install a few specific packages one time on Debian Wheezy (after EoL)

I'm using a fresh beaglebone debian 7.9 armhf image and need to do some additional setup. Despite EoL being May 2018, the apt sources have still been available until recently. They are no longer ...
2
votes
1answer
185 views

Creating an encrypted partition to store private keys [closed]

I am using a BeagleBone Black board running Debian. My intention is to create a separate encrypted partition to store private keys in the internal emmc. The keys are used for SSL communication. The ...
2
votes
1answer
143 views

How to build a bridge between 2 networks?

Using Beaglebone. I have successfully set an AP, but am unable to bridge eth0 and wlan1. Applications used: hostapd, dnsmasq, bridge-utils /etc/dnsmasq.conf interface=wlan1 dhcp-range=10.10.1.2,10....
2
votes
1answer
283 views

U-boot messages regarding partition switches not understood

I am using a BeagleBone board with the default Debian image flashed to the internal emmc. I'm trying to understand the U-boot messages below that I get over serial when the device starts, especially ...
2
votes
1answer
2k views

Why does LXQT Autostart not do anything?

I have a BeagleBone Black here, running Debian 8.3, Linux 4.1.15-ti-rt-r43. Desktop is LXQT. After boot, I want to run a .sh file - when the desktop environment is ready, as that file, after changing ...
2
votes
2answers
5k views

Failing to Enable UARTs on Beaglebone Black

Short and General Question I'm running Debian 9 (Stretch) on a Beaglebone Black with kernel 4.9. I have tried following the instructions that I've found online, but have thus far been seemingly ...
2
votes
1answer
2k views

Static IP address on beaglebone

I am connecting a USB to Ethernet adapter to the USB2.0 port, this adapter is then connected to the ethernet cable and to the network switch. Now this shows up as the eth1 port on the ifconfig and I ...
2
votes
2answers
163 views

armhf PWM question: what is the difference between “epwmss” and “ehrpwm”

I know the epwmss and ehrpwm are somehow related to PWM signals, but what is the difference?
2
votes
2answers
2k views

Repair uEnv.txt from U-Boot terminal?

I have a BeagleBone Black, with Debian 8.3, Linux 4.1.15-ti-rt-r43. EDIT: The system is installed on the internal flash. I modified the /boot/uEnv.txt to load a different dtb file, apparently with ...
2
votes
1answer
2k views

Run shell script after reboot in beaglebone black

I'm using a beaglebone black which works with Debian 8.6. I want to start a program after reboot. I tried crontab but it didn't work. @reboot sleep 60 && /home/debian/acspilot/start.sh ...
2
votes
0answers
449 views

problems executing a script on boot-up with systemd

I am connecting from my BeagleBone running Debian to a cellular modem. In order to connect, I enter command pppd file /etc/ppp/peers/zdial & Now, in order to execute this command on boot-up, I ...
2
votes
1answer
3k views

Failed to start Create Volatile Files and Directories in Debian

Using debian in beaglebone black. The board is connected online with a static ip for remote ssh. After few days I couldn't able to ssh my board. While debugging the board received following error log. ...
2
votes
1answer
4k views

Preconfigure static IP address with connmanctl on Beaglebone Black

Short Version How can I used connmanctl to set a static IP address for an Ethernet interface on a Beaglebone Black running Debian 9 - prior to connecting the device to an Ethernet cable? Longer ...
2
votes
0answers
92 views

dyld library not loaded

I'm having an error while trying to secure copy a file from a Beaglebone connected to my laptop. scp filename username@IP:/Users/username/Desktop/ The authenticity of host '192.168.7.1 (192.168.7.1)' ...
2
votes
0answers
515 views

Beaglebone Black not able to send raw UDP Packets with Python to laptop running Ubuntu 16.04

I created a Python 3.6 script that creates a raw UDP Packet over ethernet to a system with a known MAC Address and IPv4 Address. This script is running on a Beaglebone Black (BBB) that is connected ...
2
votes
0answers
789 views

how to enable RS485 of beaglebone black

I am using beaglebone with kernel 4.4. I am trying to use the RS485, with pin 9.11 and pin 9.13 for tx/rx, and pin 9.27 as a GPIO control for the DE/RE pin. I bought a SN65HVD72, and connect it as ...
2
votes
2answers
153 views

bricked my beaglebone with a bad rc script

I dropped a new script into /etc/init.d, and used update-rc.d to install it into the other rc#.d subdirectories. Unfortunately I made two stupid mistakes: The script runs a long-running command (...
1
vote
3answers
220 views

Why aren't half of my logical partitions available?

I'm trying to partition the eMMC on a Beaglebone Black. Here is how I have /dev/mmcblk1 partitioned: root@beaglebone:~# fdisk -l /dev/mmcblk1 Disk /dev/mmcblk1: 3.6 GiB, 3825205248 bytes, 7471104 ...
1
vote
1answer
193 views

Limit on continuously writing to a log file

I am using Debian running on a BeableBone Black with 4GB of internal flash storage. My program is continuously writing / appending to a log file that I created with >> every minute, all day ...
1
vote
2answers
96 views

How does the same Linux version work on different hardware

My understanding is that the kernel understands how to communicate with the different hardware in a system via specific device trees. How is it that I can download one version of Ubuntu and I am ...
1
vote
2answers
251 views

Is Removal of Perl the Recommendation for Hardening a System? [closed]

I'm working on a BeagleBone Black shipped with Debian. Started reading the Securing Debian page, and part way through I see in a chapter 3 section 3.6.1 Removing Perl. Doing a quick google search ...
1
vote
1answer
219 views

How to debug an SDIO configuration problem?

We are trying to get an SDIO-based 802.11 module to work on an SDIO port of the beaglebone. We adapted the device-tree overlay provided by manufacturer to our hardware, compiled the driver, the driver ...
1
vote
1answer
685 views

Flashing U-boot on beaglebone black

I got a beaglebone black which comes with u-boot linux preinstalled on the emmc. For the sake of learning I want to put u-boot on the flash myself and build linux from scratch. I have compiled u-boot, ...
1
vote
1answer
1k views

routing table adds additional default entry

I'm using a beaglebone black with the newest IoT Debian 9 image (BeagleBoard.org Debian Image 2018-03-05) Here is how I configured my network interfaces: /etc/network/interfaces # The loopback ...
1
vote
1answer
1k views

How to reduce the boot time of a beaglebone using systemd

I'm currently trying to reduce the time it takes to boot my beaglebone green and start a python script. My simple python script just turns on a relay on a cape. I'm using the time it takes for the ...
1
vote
1answer
24 views

Autostarting a python GUI application on startup as local user (beagle bone black)

I am trying to start a GUI application (python3 project) on application startup. I've created a script in /etc/xdg/autostart/. @lxpanel --profile LXDE @pcmanfm --desktop --profile LXDE @xscreensaver ...
1
vote
1answer
1k views

What happens if remove auto eth0 from /etc/network/interfaces

I am using a BeagleBone and have two network interfaces. One Ethernet interface which will connect locally to another device, and a ppp interface over USB which connects to a cellular modem. I want ...
1
vote
1answer
483 views

How to debug u-boot issue?

I am working on putting a custom system together on the Beaglebone Black. Things work most of the time, but every once in a while, the system will fail to boot when powered on. This never happens ...
1
vote
1answer
2k views

Why is uboot ignoring mmcroot in uEnv.txt?

I am trying to get an embedded linux build using yocto to work. I'm very close, but I'm having trouble with the boot. I have 2 root file systems. One is the main and the other is to be used during ...
1
vote
1answer
626 views

How to track down sys_reboot function in Linux kernel for ARM architecture

We have Beaglebone Black based custom board, with Linux 4.4. I wanted to track down the low level function corresponding to the reboot() system call. I am able to see sys_reboot() in include/uapi/asm-...
1
vote
1answer
704 views

busysbox reboot doesn't work from init script

We have Beaglebone black based custom board with 256MB RAM and 4GB eMMC. We upgraded from Linux-3.12 to Linux-4.4 and busybox-1.20.2 to busybox-1.26.2. Now in busybox-1.26.2 we are seeing and issue ...
1
vote
1answer
531 views

rsyslog.conf rule for dmesglog doesn't work

We have Beaglbone Black based custom board with Wifi chip We have following entry in the rsyslog.conf # Redirect all kernel messages including dmesg to /var/log/dmesglog kern.* ...
1
vote
1answer
629 views

Running code without ssh in beaglebone black

I want to run some code in Beaglebone black without doing ssh when I apply power. I have tried putting some commands to run the code in ~/.bashrc file but it only works when I login using ssh. I have ...
1
vote
1answer
58 views

Kernel throws error while writing to the character device file in 4.9.82-ti-r102 debian 9.3

I created the device file under /dev folder successfully, but writing to that device file makes kernel to throw following error messages. Message from syslogd@beaglebone at Feb 26 15:40:10 ... kernel:...
1
vote
0answers
81 views

Beagle bone black - no boot text

I'm working with a beaglebone black with an image based off the base debian image for these boards. When I plug this into a monitor via the onboard HDMI and boot it, I get the linux penguine (Tux) in ...
1
vote
0answers
132 views

reboot causes device to shutdown but doesn't start again for many hours after

I am using a BeagleBone running Debian. I have a cron entry in /etc/crontab which tells the device to reboot at 03:01 every night as follows 00 03 * * * root /sbin/shutdown -r +1 >> /...
1
vote
1answer
84 views

Why does plugging in a cellular modem create 8 different device files?

I am using a BeagleBone board running Debian. When I plug in a USB cellular modem, this creates the following files in the /dev folder: ttyACM0, ttyACM1, ttyACM2, ttyACM3, ttyModem0, ttyModem1, ...
1
vote
0answers
264 views

is there a way to disable/change kernel console from userspace

We have Beaglebone Black based custom board with 512MB RAM and 4GB eMMC. We have kernel console set as /dev/ttyS0 which is debug UART. After booting in user space, we want to disable(if possible, or ...
1
vote
0answers
142 views

Facing issue in ssh for USB0 Interface buildroot

I am working on building Custom Os using Buildroot for beaglebone black. Configurations: Linux kernel version 4.19.29 I have enabled the Dropbear for SSH. The Script to load the drivers at boot ...