110
votes
Accepted
What does the lightning bolt mean?
That's the new undervoltage symbol. Your Pi's power supply is marginal or insufficient for its requirements.
From the raspberrypi.org blog page:
Finally on the subject of icons, in the past if ...
- 10.7k
38
votes
How to enable auto-login?
I found a solution that uses raspi-config.
I played around with it for a bit, and found something (NOTE: You may need to update raspi-config)
To enable Auto-login with raspi-config:
Run: sudo raspi-...
- 481
36
votes
How could one automate the raspbian raspi-config setup?
This is still not documented anywhere, but the rc_gui tool (I'm assuming it would be a graphical user interface to the raspi-config if I were to ever install the full desktop) uses command line ...
- 1,388
35
votes
Accepted
How could one automate the raspbian raspi-config setup?
At least nowadays, raspi-config seems to support noninteractive mode:
cat /boot/cmdline.txt # show original cmdline.txt
raspi-config nonint do_serial 1 # disable serial console
cat /boot/...
- 466
29
votes
What does the lightning bolt mean?
The lightning bolt means that the Pi is not receiving the required voltage. This may be due to the power supply you are using or the cable (if separate). You should switch to a better supply/cable as ...
- 34.5k
26
votes
Accepted
Temporarily disable expand filesystem during first boot
[Beware this may not reflect the current mechanism as it is some years old.]
There is a two part mechanism which takes responsibility for this on Raspbian; likely the best idea is to take care of both ...
- 58.3k
24
votes
Raspberry Pi Camera Rev 1.3 is not detected
I just had this same problem. Here is what eventually worked after reading this (From the comments it looks like you had the same issue as I did):
vcgencmd get_camera (Returned supported=1 detected=0)...
- 455
17
votes
Accepted
Why Does raspi-config Depend On triggerhappy?
Triggerhappy is only used in raspi-config's init script, see line 17 of the init script. There it checks if any of the Shift keys is hold down at boot time to disable the ondemand scaling governor.
...
- 1,132
14
votes
What does the lightning bolt mean?
The lightning bolt means that you don't have enough power going to the Raspberry Pi.
Almost any standard micro USB cable will be able to power the Pi. Most of us have one or two laying around from ...
10
votes
What does raspi-config's Expand Filesystem option do?
raspi-config is POSIX shell script and fairly easy to read if you understand shell scripting; on Raspbian it's in /usr/bin, and runs via an init service the first time you boot, but is kept updated ...
- 58.3k
7
votes
sudo raspi-config not working: boot partition not mounted
Check if your boot folder is empty using cd /boot/ in a terminal session. If so, you should be able to mount it to the SD card using a simple command.
sudo mount /dev/mmcblk0p1 /boot
All this ...
- 324
7
votes
Connection between Raspberry Zero and Raspberry Pi 2 or 3
A USB OTG connection seems like the best option here. It will be much faster than about any alternative (certainly faster than I2C or UART), and with the g_ether driver you will be able to use it as a ...
- 27.6k
7
votes
Connection between Raspberry Zero and Raspberry Pi 2 or 3
By far the easiest options for moving large amounts of data between Pi Zeros and other Pis are USB OTG, which has already been covered by Dmitry Grigoryev's answer, and ethernet or WiFi.
While USB ...
- 10.7k
6
votes
How can I enable the camera without using raspi-config?
raspi-config seems to support noninteractive mode: you can use nonint command to set the camera
# raspi-config nonint do_camera %d
# %d - Integer input - 0 is in general success / yes / selected, 1 ...
- 161
6
votes
How to enable auto-login?
I needed to know how to do this manually, not using raspi-config. I couldn't find anyone sharing the secret sauce. Thank Stallman for open source. Just read the source.
do_boot_behaviour() {
if [ &...
- 163
6
votes
Accepted
What does raspi-config's Expand Filesystem option do?
The base image is sized so that it will take as little as possible of the SD card space as practical. That's probably 4GB for Raspbian (full). Many people will use larger capacity cards. Unless the ...
- 70.4k
6
votes
Accepted
Expand Raspbian File System on First Boot
First edit /boot/cmdline.txt and append init=/usr/lib/raspi-config/init_resize.sh on to the first (and only) line
e.g. it may end up looking like
dwc_otg.lpm_enable=0 console=serial0,115200 console=...
- 2,334
6
votes
raspi-config network option not working
Try run wpa_supplicant interactively:
sudo killall wpa_supplicant
sudo wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -d -iwlan0
This will provide a lot of diagnostic logging; in my case (...
6
votes
How to get raspi-config on Ubuntu 20.04
raspi-config is a simple (if long and involved) shell script to configure Pi hardware and Raspbian settings. It is just a front end to the underlying system commands.
As Ubuntu (which doesn't even ...
- 58.2k
6
votes
How to get raspi-config on Ubuntu 20.04
You could use following script to install raspi-config to any Debian like OS.
wget https://archive.raspberrypi.org/debian/pool/main/r/raspi-config/raspi-config_20200601_all.deb -P /tmp
sudo apt-get ...
- 161
5
votes
Accepted
5
votes
Expand file system Kali Linux on SD card of 16GB
A quicker solution:
Run apt-get install gparted
GUI pops up
Select ext4 + right click + "resize/move"
Get all available space + "resize"
"Apply All Operations"
- 51
5
votes
hcitool scan says No such device
I had the same issue
pi@jarvis:~ $ hcitool dev
Devices:
with a inactive hciuart.service
pi@jarvis:~ $ systemctl status hciuart.service
● hciuart.service - Configure Bluetooth Modems connected by ...
- 51
5
votes
Accepted
Raspbian Jessie "wait for network" Vs. Cron @reboot entries
will the entire system halt until the network is up
No.
where in the boot-up sequence is crontab activated?
Crontabs are managed by cron, a system daemon started by init, which on Raspbian jessie ...
- 58.3k
5
votes
Accepted
Enable VNC and SSH for user other than `pi`?
SSH
SSH is achieved just by creating a new user (useradd) and making a small edit to sshd_config. First lets create the user:
useradd UserName
passwd UserName
Once the user is created, if you want ...
5
votes
Alienware GPU in a rpi will it work?
Sorry, it's not possible. There's no PCI bus. There's no external interfaces to the ARM GPU other than HDMI, CSI (camera) and DSI (RPF official touch screen).
- 5,251
5
votes
Accepted
Raspberry install centos
From the image in your question, it is clear that you have an original Pi B
The ARM chip in the Pi B (and A, and B+) is an armv6
There is no Centos image available for the original raspberry pi (...
- 2,334
4
votes
How could one automate the raspbian raspi-config setup?
All raspi-config does is editing a few configuration files, which you can also edit with a script. Check the sed manual to see how such edits can be efficiently done.
If you have a lot of changes to ...
- 27.6k
4
votes
How to enable auto-login?
First create a new service similar to [email protected]:
# cp /lib/systemd/system/[email protected] \
/etc/systemd/system/[email protected]
# ln -s /etc/systemd/system/[email protected] \
/...
- 1,617
4
votes
Accepted
Foreign characters showing from gcc compiler output
The problem is in Putty not the Pi. To fix the problem:
Load the stored profile for the Pi (I assume you have saved you connection details).
Open Putty Configuration.
From the left side menu click ...
- 34.5k
Only top scored, non community-wiki answers of a minimum length are eligible