All Questions
37 questions
0
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0
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23
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raspberry pi does not boot when UART(RX/TX) connected via serial
I am using ubuntu 20.04 server LTS on raspberry 4. I have pixhawk flight controller connected via TX/RX on raspberry pi GPIO14(TXD) GPIO15(RXD).I write a mavproxy.service to forward telemetry data to ...
- 23
-2
votes
1
answer
934
views
Black screen when booting up raspberry pi
I use a 4GB raspberry pi 4B. Recently, I switched to Ubuntu, and it had been working fine, until one day, I booted it up and the screen was black. Sometimes a glitched Ubuntu loading screen appears ...
- 101
0
votes
0
answers
334
views
cloud-init fails on adding user
I'm trying to install Ubuntu Server (64-bit) on a Raspberry PI 4B. I've created an image with the Raspberry Pi Imager, with a user/password and SSH enabled. The cloud-init script fails when trying to ...
- 1
2
votes
0
answers
618
views
RPi Camera V2 not detected with Raspberry Pi4 running Ubuntu 20.05 LTS
I am running into a problem in which I am unable to have my Pi detect my new RPi Camera V2. I am running on Ubuntu 20.04 LTS (focal) since I am working on a robotics project that requires ROS2(foxy).
...
1
vote
0
answers
359
views
BOOT Error: end Kernel panic - not syncing: No working init found. Try passing init= option to kernel
I did sudo halt and then power off the raspberry pi, then power off. And the next time I power on the pi, I can't boot the system anymore, and got this error.
I successfully run the commands fsck -y /...
- 11
0
votes
1
answer
1k
views
Ubuntu Core & Raspberry Pi Zero 2 W
I'm trying to run Ubuntu Core 20 on Raspberry Pi Zero 2 W.
According to Install Ubuntu on RPi this should work without a problem when using the 32bit version. Or with 64bit version using following ...
0
votes
1
answer
505
views
Ubuntu Desktop fails to boot on Raspberry Pi 400 with 32GB SD card
I have used Pi Imager to write Ubuntu Desktop to my SD card. When I try to boot from it in my Pi 400, I get the following error:
[50B]: Failed to remount '/' read-only: Device or resource busy
systemd-...
- 171
0
votes
2
answers
49
views
Can I use Ubuntu 8.10 on a Raspberry Pi?
I am working on a project that requires:
An open WiFi network
On that network, a device that has a known exploit.
My plan is to use a Raspberry Pi to create that open WiFi network, then use another ...
- 113
1
vote
1
answer
798
views
Need to see the console boot messages, not the splash screen
I am running Ubuntu 21.04 on RPi 4.
On boot up, I would like to see the console boot messages in real time (and not the splash screen).
On Intel PCs, that's easily done by editing the grub2 config ...
- 21
0
votes
0
answers
64
views
How Install Ubuntu 21.04 (Desktop) on Raspberry Pi 4 using Serial Console? [duplicate]
Hello how can I install ubuntu desktop 21.04 on raspberry pi 4 using serial console? I want to use the Raspberry Pi 4 UART pins to communicate using TTL to USB convert device to my windows 10 OS using ...
- 1
0
votes
0
answers
176
views
Mount USB then NFS
I'm creating a kubernetes cluster with 1 desktop pc and 3 raspberry pi4.
The desktop PC is set as master node and NFS server.
Each RPi4 has two USB keys:
Ubuntu 21.04 Server on 32GB key
Storage on ...
- 101
1
vote
0
answers
1k
views
Raspberry pi 4 gives vertical color lines on bootup
I am using a Raspberry pi 4 model B 4GB with ubuntu 20.04 installed on a 32GB memory card and when I booted, I got a display with vertical color lines. I tried using multiples displays and all results ...
- 11
0
votes
1
answer
2k
views
Unable to detect NVMe M.2 ssd in raspberry pi 4 8gb
Is it possible to use an NVMe M.2 as external storage on a Pi4b 8GB?
I have the following PCIe device: samsung NVMe PCIe 3.0 SSD 970 Evo plus, 500 gb +
external hard drive enclosure with a C to A ...
- 1
0
votes
2
answers
925
views
firmware bug bootloader left irq enabled bank 1 irq 9 and boot fails
I updated the packages on my Raspberry Pi 2 (running Ubuntu Mate 20.04) by using apt update and apt dist-upgrade. Everything went smoothly. Then I restarted, and got the following error during the ...
- 713
1
vote
2
answers
1k
views
My raspberry pi wont boot after flashing an sd card it with ubuntu server
I have a raspbeery pi 4 2gb
I flashed my 128gb sandisk sd with etcher on linux with ubuntu server 18 and 20 images both dont work even though it writes to the sd and says it was successful on etcher ...
2
votes
3
answers
3k
views
Unable to boot Raspbian or Ubuntu Server 20.04 from a USB SSD using a Raspberry Pi 4 4GB
I know of two methods to do this which I've tried:
Use RPi Imager to install Ubuntu on both the SD card and SSD as per this post and this post
Install BerryBoot and use that to install and boot ...
- 31
2
votes
1
answer
116
views
Color test finishes but no console or gui for Ubuntu Server 64
I've used the Raspberry Pi Imager utility to download and install Ubuntu Server 20.04 x64 on an SD card, and added hdmi_force_hotplug=1 to usercfg.txt before booting up.
This worked just fine for ...
- 41
2
votes
1
answer
2k
views
How to enable more uart port on raspberry pi 4 ubuntu server 20.04
I recently got the Raspberry Pi 4 for a university project. I installed Ubuntu Server 20.04 on it. Now I am trying to enable a second uart port because for the project I need to connect multiple ...
- 31
4
votes
1
answer
2k
views
Network boot with rootfs on USB3 drive fails with Ubuntu 20.04
Having previously got network boot working following this tutorial, I thought I'd try to combine it with the steps for using an USB SSD as rootfs.
This worked on Raspbian as follows:
Make a machine-...
- 153
1
vote
2
answers
1k
views
Raspberry Pi stops booting (mmcblk0: p1 p2) (Ubuntu)
I have a Raspberry Pi 4 since a few days and I've been trying to boot it with Linux Ubuntu since then.
But it just stops booting every time I try it. The last thing which is displayed is [341.992834]...
- 11
5
votes
4
answers
3k
views
Weird display on VGA monitor, Ubuntu Server 19.10 on Raspberry Pi 4
UPDATE: As I suspected lately, Ubuntu Server actually boots up. Nothing worked until I tried using an actual HDMI monitor instead of an HDTV or VGA monitor. I suppose the TV will work once I install a ...
- 49
1
vote
0
answers
214
views
quiet splash boot on Raspberry Pi 4 / 19.10.1
Where do I enable "quiet splash" for booting my Raspberry Pi 4b on Ubuntu 19.10.1? Should it be on the Micro SD card or in the filesystem? I've made changes to grub without success. Does 19.10 even ...
- 21
10
votes
1
answer
15k
views
Ubuntu server on RPI 4 boot hangs on cloud init
I've installed the image ubuntu-19.10.1-preinstalled-server-arm64+raspi3.img.xz on an sd card and am trying to boot ubuntu server for the first time on my raspberry pi 4.
I get to this stage in the ...
- 153
1
vote
0
answers
410
views
How to upgrade other major OS to work on 3 B+
Scenario
I am yet another victim of thinking my rpi 3 B+ was broken when it wouldn't boot up. It turns out that the 3 B+ is looking for some special boot instructions.
I currently have:
Ubuntu Mate 16....
- 223
1
vote
0
answers
178
views
PI3 Ubuntu Server 16.04.03 - UART issue
I'm trying to setup UART, for a final year project at university, on the PI3, I need to switch ttyAMA0 to the GPIO pins in place of ttyS0.
I have tried adding the device tree overlays 'pi3-disable-bt' ...
- 11
1
vote
1
answer
4k
views
How do I install ubuntu server 16.04 on pi3 model B
I have tried the instructions at Ubuntu Wiki, especially the ones under
Booting the official Pi 2 image on the Pi 3
I downloaded both pre-installed server versions armhf+raspi2 and armhf+raspi3. I ...
- 111
2
votes
2
answers
1k
views
Bootup Problem Ubuntu Core
I have two raspberry pi 3's that boot perfectly with raspian, but don't boot with ubuntu snappy core.
Here's what I did:
$ wget http://cdimage.ubuntu.com/ubuntu-snappy/16.04/current/ubuntu-core-16-...
- 121
1
vote
0
answers
85
views
Imaging Raspberry Pi and can't restore. 'Unable to mount foot fs on unknown-block'
I've installed Ubuntu Mint on my Raspberry Pi and setup everything the way I like. On my Mac, I've gone ahead and created an image via:
sudo dd if=/dev/rdisk4 bs=1m | gzip > ~/Downloads/MyImage.gz
...
- 111
0
votes
3
answers
1k
views
Unable to boot Ubuntu Snappy on Pi 3
I just got a Raspberry Pi 3 and am having trouble booting it up.
I bought a microSD card, and followed this guide to install Ubuntu for it https://developer.ubuntu.com/en/snappy/start/raspberry-pi-2/
...
- 103
3
votes
1
answer
5k
views
Fixing recursive fault but reboot is needed
Occasionally my Pi3 will crash during boot and hang on the error message:
Fixing recursive fault but reboot is needed
Manually power cycling it sometimes fixes this, but sometimes the error ...
- 2,281
3
votes
3
answers
21k
views
How to PXE Boot a Pi 3?
I am setting up a demo lab where I build a baby Openstack data center using MaaS and Juju with LXD hypervisors running ZFS. Here is my setup:
Macbook Pro i7, 16GB RAM
VMWare Fusion VM(s) running ...
- 151
13
votes
6
answers
18k
views
How to connect and use ssh without a screen using BUILDROOT
I want to build a minimal system for raspberry pi (B+) to improve the performance of my face detection algorithm ...
I have found BuildRoot : for the configuration i found that it's not necessary to ...
- 373
-5
votes
3
answers
169
views
how to inspect Rasperry Pi 1A from Laptop (Ubuntu Linux 14.04)
I won a Raspberry Pi at a contest about 2 years ago. Finally I got the proper wire to connect it to my laptop, but it's not doing anything!
The light goes on, but nothing appears in my operating ...
- 93
3
votes
1
answer
934
views
which ubuntu version to install
I have installed ubuntu snappy but I can't find apt-get which is not a problem but I can't find some packages as vim... Which is the best Ubuntu version to install ? What are the pros and cons ?
- 219
3
votes
0
answers
2k
views
Keyboard doesn't work in initramfs
I've setup an encrypted root partition with Ubuntu 15.04 MATE (the latest image). I've fought with it for quite a while now, but I'm now certain that the initramfs has everything it needs in order to ...
- 131
1
vote
1
answer
440
views
Raspberry wont boot using SD card prepared using dd on Ubuntu [closed]
This is weird.
Raspberry Pi wont boot (red led is glowing) using SD card which image is written using dd on Ubuntu laptop, while it will boot if same SD card is written using very same image file on ...
- 11
2
votes
2
answers
4k
views
Install Raspbian OS on SD Card for Raspberry Pi
I am new with Raspberry Pi. I wrote the .img file onto my SD Card with DiskImager on Windows 7. I downloaded the 2013-09-25-wheezy-raspbian.img file from the Raspberry Pi website.
When I start the ...
- 129