Difference between revisions of "Ubuntu Server LTS"
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- | = RPi related stuff = | ||
== 4G usb modem == | |||
qmicli -d /dev/cdc-wdm0 --wds-reset | |||
qmicli --device=/dev/cdc-wdm0 --wds-start-network="apn=4g.tele2.se" --wds-follow-network & | |||
sleep 5 && systemctl restart systemd-networkd & | |||
'''Reset USB''' | |||
echo 0 | sudo tee /sys/bus/usb/devices/1-1/authorized | |||
sleep 3 | |||
echo 1 | sudo tee /sys/bus/usb/devices/1-1/authorized | |||
== Bluetooth == | |||
sudo hciattach /dev/ttyAMA0 bcm43xx 921600 - # TWO TIMES!! WHY? Better use the pi-bluetooth package | |||
apt install pi-bluetooth | |||
systemctl enable hciuart.service | |||
Manage: | |||
hcitool dev | |||
bluetoothctl | |||
* https://simpleit.rocks/linux/shell/connect-to-bluetooth-from-cli/ | |||
== How to disable cloud-init in Ubuntu == | |||
'''Prevent start''' | |||
* Create an empty file to prevent the service from starting | * Create an empty file to prevent the service from starting | ||
sudo touch /etc/cloud/cloud-init.disabled | |||
'''Uninstall''' | |||
* Disable all services (uncheck everything except "None"): | * Disable all services (uncheck everything except "None"): | ||
sudo dpkg-reconfigure cloud-init | |||
* Uninstall the package and delete the folders | * Uninstall the package and delete the folders | ||
sudo dpkg-reconfigure cloud-init | |||
sudo apt-get purge cloud-init | |||
sudo rm -rf /etc/cloud/ && sudo rm -rf /var/lib/cloud/ | |||
* Restart the computer | * Restart the computer | ||
sudo reboot | |||
Sources | '''Sources''' | ||
* https://gist.github.com/zoilomora/f862f76335f5f53644a1b8e55fe98320 | * https://gist.github.com/zoilomora/f862f76335f5f53644a1b8e55fe98320 | ||
* https://cloudinit.readthedocs.io/en/latest/topics/boot.html#generator | * https://cloudinit.readthedocs.io/en/latest/topics/boot.html#generator | ||
* https://www.blackmoreops.com/2019/04/19/remove-cloud-init-from-ubuntu/ | * https://www.blackmoreops.com/2019/04/19/remove-cloud-init-from-ubuntu/ | ||
Latest revision as of 21:55, 5 July 2022
4G usb modem
qmicli -d /dev/cdc-wdm0 --wds-reset qmicli --device=/dev/cdc-wdm0 --wds-start-network="apn=4g.tele2.se" --wds-follow-network & sleep 5 && systemctl restart systemd-networkd &
Reset USB
echo 0 | sudo tee /sys/bus/usb/devices/1-1/authorized sleep 3 echo 1 | sudo tee /sys/bus/usb/devices/1-1/authorized
Bluetooth
sudo hciattach /dev/ttyAMA0 bcm43xx 921600 - # TWO TIMES!! WHY? Better use the pi-bluetooth package
apt install pi-bluetooth systemctl enable hciuart.service
Manage:
hcitool dev bluetoothctl
How to disable cloud-init in Ubuntu
Prevent start
- Create an empty file to prevent the service from starting
sudo touch /etc/cloud/cloud-init.disabled
Uninstall
- Disable all services (uncheck everything except "None"):
sudo dpkg-reconfigure cloud-init
- Uninstall the package and delete the folders
sudo dpkg-reconfigure cloud-init sudo apt-get purge cloud-init sudo rm -rf /etc/cloud/ && sudo rm -rf /var/lib/cloud/
- Restart the computer
sudo reboot
Sources
