Questions tagged [boot-issues]

Errors occurring in boot; includes software/hardware issues.

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11
votes
4answers
19k views

Why am I getting a rainbow screen and flashing red PWR LED with a new Raspberry Pi 3B+?

I think there might be a problem with my new Pi. I'm using the same power supply (purchased from PiHut for my previous 3B) in the new 3B+ but I get the rainbow screen and the red power light flashes ...
1
vote
3answers
9k views

Raspberry Pi 3b+ not booting

I got a raspberry pi 3 b+ for Christmas and yesterday whilst installing a Pi Hat's Software (Rasp.io Duino) it just flat out died after showing that there was an under-voltage, even though I was using ...
1
vote
2answers
5k views

Is it possible to use partition UUID for root-parameter in cmdline.txt?

By default the root parameter in /boot/cmdline.txt is set with PARTUUID. For example: dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=PARTUUID=ae4da847-02 rootfstype=ext4 elevator=...
19
votes
4answers
102k views

Raspberry Pi with boots up with Rainbow screen

How can I fix a Raspberry Pi with Rainbow screen on boot up? I have good voltage coming in and I believe I've formatted and setup the SD card properly. I have two of these boards that do the same ...
2
votes
1answer
5k views

I can't boot my Pi! (4 flashing green Lights)

I recently pulled my Raspberry Pi (model B) out to try messing with it again. But when I loaded up an image onto my SD card, I would just get 4 flashing green lights, and no image output to let me ...
0
votes
2answers
205 views

Monitor only recognises the signal when started first

My monitor, an old Toshiba 47wlg66, will display what my boards output (whether it's my old raspberry pi 1 A or new raspberry pi 4 B) only if it was powered first. Otherwise it will remain black.. It ...
54
votes
11answers
73k views

How can I prevent my Pi's SD card from getting corrupted so often?

I get an I/O error at boot and then get this 'error': (I am running the latest version of Raspbian) Entering kdb (current=0xca82ac80, pid 1) due to keyboard entry kdb> _ And I have seen it before,...
8
votes
9answers
55k views

How can I install the KUMAN 3.5 inch-display?

I have a perfectly running Raspberry Pi 3 Model B, with a Raspbian Distribution on a 16 GB SD-Card. I connected a Screen with a HDMI-to-DVI Connector to it, a Mouse and Keyboard and I also have SSH ...
4
votes
2answers
22k views

How to access the RPi root ext4 file system by inserting SD card into a different computer?

I've got my 4GB SD card full and Raspbian won't complete the boot process. Is it possible to access the file system on a different computer (by plugging in the SD card) and editing/deleting files ...
2
votes
3answers
1k views

Powering Raspberry Pi via battery pack and buck converter - how to solve low voltage reboot issues

I'm trying to power a Raspberry Pi 4 via a 6-AA battery pack via buck converter which steps it down to 5V but it gets stuck in a reboot loop on boot up. Watching the display on the buck converter, the ...
4
votes
2answers
4k views

PI 4 sometimes doesn't boot after rebooting from command line [closed]

I have a new Raspberry Pi 4 connected to a motherboard that supplies very stable voltage and current to the Pi. I flashed an SD card with the latest distro and realized that sometimes when I run ...
1
vote
3answers
87 views

Reboot not starting python app but executing runs with no Errors

I'm running a bell app connected by ENet between two RPI 4. The button end works well, but the server end only works when I sign in to activate it. How do I get it to start at start-up in Crontab? @...
5
votes
2answers
11k views

isc-dhcp-server needs to be restarted after reboot

I'm having an issue with isc-dhcp-server. When I reboot I can see that it loads because it says "Starting LSB: DHCP server ...". However when trying to connect a PXE node to the server it does not ...
1
vote
3answers
3k views

Raspbian on USB Stick

After owning a RPi 3 for almost a year now, I wanted to do a complete clean installation. I had installed Raspbian on a USB-stick, which was really easy at that time. I just had to write the disk ...
2
votes
1answer
5k views

SD Card RPi 2 - why the SD card won't work

There are a lot of issues around here about corrupted cards and RPi not booting. But can somebody explain to me what is the problem with RPi and some card(I mean technical explanation) Why do some ...
2
votes
2answers
13k views

Colored screen when booting raspbian from noobs

i have a raspberry pi model b with noobs and raspbian installed on the sd card. ive used it for quite a while but today when i boot the pi it just shows me a colored screen and i cant do anything. i ...
2
votes
1answer
1k views

Is my raspberry Pi dead

I tried a circuit with raspberry pi to drive a motor, so there was 12 V at the circuit I used it with. I might have wired it in a wrong way for a short while and I immediately shut the power down. At ...
2
votes
1answer
476 views

SanDisk Ultra SD Card with Raspberry Pi 3+ Suddenly Stopped Working (and is Overheated!)

It has been about a week since I booted into my Raspberry Pi. This evening when I booted it, raspberrypi.local could not be detected on the network. However the card was burning burning hot I ...
1
vote
1answer
182 views

RPI not booting, only red LED, not the SD card

My RPI 3B+ won't boot up anymore. Only the red LED lights up, the green one remains off. I use the official power supply, and my SD card is not corrupted. My SD card realy isn't the problem: I tried ...
1
vote
3answers
10k views

RetroPie fails to boot on Raspberry Pi 3 Model B+ with rainbow screen and flashing red led

I downloaded the latest version of RetroPie (v4.3) to a formatted SanDisk 16GB SD card. When I try to boot RetroPie on a brand new Raspberry Pi 3 Model B+, it gets stuck on a rainbow screen. I've ...
1
vote
3answers
920 views

Pi Zero USB On The Go cannot connect

There are several posts that say a Pi Zero can be connected to another computer with USB to enable networking (e.g. Linux host, Windows host or https://www.circuitbasics.com/raspberry-pi-zero-ethernet-...
0
votes
3answers
4k views

First time RPI user, Raspberrian installer won't boot, red light only

I seem to be one of countless scores of people who just don't seem to have the magic touch in getting this little machine to actually run. I will walk through the history of what I have done. Model ...
0
votes
1answer
98 views

Raspberry Pi model b+ has stopped working

I am using a Raspberry Pi model b+ to drive a wheelchair. I am running the motors through relay modules. The signal to the relay module is given from the Pi. Also a GSM module and voice recognition ...
12
votes
2answers
16k views

Strange problem on startup - cannot open access to console

Rpi 3 Model B, 16gb SD, all configured well and working fine until yesterday sometime, when rebooting, I now have to press "enter" to continue due to: "Cannot open access to console, the root account ...
8
votes
8answers
63k views

Will not boot, black screen only

I recently installed Debian 7.0 (Wheezy) on a 32 GB SD card, but so far the Raspberry Pi has not been able to boot. I replaced the elf, bin files, etc... and the monitor is now getting a response,...
8
votes
4answers
18k views

NOOBS stuck at rainbow screen - Raspberry Pi 4

I formatted my SD card to fat32 using GParted and copied all the files from the official NOOBS Lite download: https://www.raspberrypi.org/downloads/noobs/. I unzipped using unzip command on the ...
2
votes
2answers
8k views

Windows 10 Iot Core Will Not Boot

Issue: Windows 10 IOT Core won't boot past the rainbow-pixel screen on the Raspberry Pi Currently using: proper power supply, 5v - 2.1A SanDisk Ultra 16GB SD Raspberry Pi model 3B+ (~1 month old) ...
7
votes
1answer
6k views

Unable to configure a Raspberry Pi Zero as a USB Mass Storage Device using g_mass_storage

I have been trying to get my Raspberry Pi Zero to behave as a USB Mass Storage Device, following https://gist.github.com/gbaman/50b6cca61dd1c3f88f41 and other online documentation. Steps to reproduce:...
3
votes
1answer
12k views

troubleshooting raspberry pi booting with the green led light

Update : I've downloaded and copied the NOOBS images from here. Checked the hash, and when I run it on the Pi the green light blinks once and then only the red light is on. Nothing else happens from ...
2
votes
1answer
8k views

Raspberry Pi boots to rainbow screen when trying to load RetroPie

Total beginner here. My SD card was preloaded with NOOBS. I installed Raspbian, watched a tutorial on how to put RetroPie onto my SD card. The first go round I screwed up by wiping my card when I ...
1
vote
0answers
508 views

Micro SD card doesn't boot on Zero, but works on Pi3

So I've got this 32GB micro SD card, with Jessie Lite installed on it. It won't boot on any of my Raspberry Pi Zero W's or Zero, but its just fine on my Raspberry Pi 3. Literally nothing happens when ...
1
vote
2answers
11k views

Issues with root=PARTUUID= in cmdline.txt at boot

I'm having some trouble understanding which drive identifiers are available at different stages of system boot. I'm running a Pi 2B with a btrfs root mounted on an external USB SSD. I'd like to ...
0
votes
1answer
4k views

Rainbow screen, Raspberry Pi will not boot

I just got a new Raspberry Pi 3 Model B. I am trying to set it up and when I plug it in, am only getting the rainbow screen with the little square on the upper right-hand side of the screen. From ...
5
votes
1answer
7k views

How to know if Raspi is bricked

I have a Model B Raspi and - shame on me - overpowered it with about 9V. And to make it worse I powered it using the test points TP1 and TP2, avoiding the polyfuse. See Raspberry Pi Model B Schematics....
4
votes
3answers
12k views

Raspberry Pi 1 Model B+ end of life?

TL;DR My Raspberry Pi (Model B+) can't run the newest Raspbian (Stretch), suspected is that the kernel doesn't work. Anything with a kernel version above 4.1.19 will fail to load. Does this mean that ...
4
votes
2answers
2k views

Binary garbage on the UART when powering the RPi

I have a strange issue I cannot figure out. I have a thermal printer (https://www.adafruit.com/products/597) plugged to the UART (/dev/ttyAMAO). I configured the RPi to remove the console on /dev/...
4
votes
2answers
1k views

Raspbian - Real Time Kernel does not boot

I am trying to make a Raspbian kernel to support real time. To do that I cloned the latest kernel from raspbian github repository and applied the Real Time patch for 3.10.25-rt23 (https://www.kernel....
4
votes
2answers
3k views

Raspberry pi B+ first boot

I got Raspberry pi B+ and I tried to boot by using NOOBS v1.3.10 and RASPBIAN Debian Wheezy Version:September 2014. Then I got two different problems. These are my component information, Raspberry ...
3
votes
3answers
473 views

Rasberry Pi Black screen after boot wth blinking cursor

I currently have a Rasberry Pi B, one of the very early ones, I installed a fresh version of Raspbian today and everything was fine. I let the system update after the first boot and let it restart. ...
3
votes
2answers
608 views

Raspberry Pi Model B 1GB version has both solid lights without SD Card

I got a used Raspberry Pi Model B 1GB Version. I am noticing something weird, even without a SD Card connected to it, after powering it on and connecting HDMI I see the rainbow splash screen. Both red ...
3
votes
4answers
31k views

Can't Access TTY: Job Control Turned Off

I have a new Raspberry Pi with Raspian Wheezy installed and has several cables connected to it via the GPIO pins. However, I noticed if I have anything connected to them during boot up, the device ...
3
votes
1answer
11k views

What does it mean if both LEDs are lit up? [duplicate]

I recently got a RPi and when I plug it in both LEDs light up solid without flickering. It also does not show up on the monitor. Everywhere I've looked it says they should be flashing but they aren't. ...
2
votes
1answer
672 views

Raspberry Pi 3 Reboot/Power issue

I'm having an issue with my Pi 3 regarding power/heat issues. I have a setup where a UBEC has been powering a Raspberry Pi 3, 5in HDMI touchscreen, and small fan for a project. It was running fine ...
2
votes
1answer
3k views

Bizarre SDcard MMC errors

I'm seeing strange issues on the Raspberry Pi B2. [ 85.426681] request_module: runaway loop modprobe binfmt-0000 [ 85.428508] request_module: runaway loop modprobe binfmt-0000 [ 85.449229] ...
2
votes
2answers
54 views

Raspberry Pi getting burningly hot and not displaying

I tried turning on my raspberry pi 3 b+ and it wouldn't show anything to my TV, the entire Pi ( mainly around the SD card ) was so hot I could barely touch it. Bare in mind the pi was only on for ...
2
votes
0answers
472 views

Raspberry Pi 4 stuck on Rainbow Screen

My Raspberry Pi turns on, it shows the Rainbow Screen, then freezes. I have not installed Raspbian; I downloaded NOOBS and put it on my micro SDHC card. I put the micro SDHC card into the slot and ...
1
vote
2answers
3k views

How to stop auto program raspberry pi

I bought a raspberry and I defined it to run a auto program in the boot by changing the rc.local. The problem is that the program is running and ctr+c doesn't work. There is a way to stop the program ...
1
vote
1answer
711 views

Raspbian img on Pi 4: unable to mount root fs on unknown-block(179,2)

I've just got my first Raspberry Pi 4. I'm trying to install Raspbian's July 2019 version. I've read all related issues to this problem here and I can´t manage to find the problem. I downloaded ...
1
vote
2answers
5k views

Why does apt-get upgrade cause blank screen after reboot on Raspbian?

I have Raspberry 2 B, installed the Raspbian image . Everything was good. However, when I ran sudo apt-get upgrade it took about 50minues, and after reboot, i have blank screen with blinking ...
1
vote
1answer
347 views

Raspberry Pi 2 doesn't boot correctly

I installed today my Raspberry again. And after installing updates and normal packages like vim I rebooted it. Now it boots, you see all the processes running (normal boot procedure) but then it's ...