Some useful tips and scripts

Useful tips

The following are some of the useful tips that could help you in your droidian journey :

How to resize the rootfs?

NOTE: the larger the rootfs, the harder it will be to make a backup from it. To resize rootfs, boot to TWRP, open Terminal under Advanced, and type the following commands:

 e2fsck -f /data/rootfs.img
 resize2fs /data/rootfs.img 16G

This will resize the rootfs to 16 GB.

How to connect via SSH?

enable ssh on device

sudo systemctl enable ssh

then plugin via usb and:

ssh droidian@10.15.19.82

the password is 1234 by default

If no new network interface is showing up on your computer when you plug usb in, you may need to install droidian-devtools on the phone and restart the device.

sudo apt install droidian-devtools 

Additionally, if the host is Windows, and the RNDIS device in device manager shows up as broken, you may need to update the driver: Browse my computer for drivers -> Let me pick from a list -> Network Adapters -> Microsoft -> USB RNDIS Adapter

Change password

Open up the terminal app and run

sudo passwd droidian

Hotspot has no internet

Open up the terminal app and run

/usr/sbin/ifconfig

Look for an interface with the name rmnet_dataX (X can be any number)

After that run

sudo sysctl net.ipv4.ip_forward=1
sudo iptables -t nat -A POSTROUTING -o rmnet_data0 -j MASQUERADE
sudo iptables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A FORWARD -i wlan0 -o rmnet_data0 -j ACCEPT

make sure to replace rmnet_data0 with your interface

Modem not showing up (no 2G/3G/4G Signal symbol on top left)

rebooting modemmanager might help:

sudo mmcli -m any -r

Enable GPS

sudo mmcli -m any --location-enable-gps-nmea --location-enable-gps-raw

to make it accessable for e.g. PureMaps, start Geoclue:

/usr/libexec/geoclue-2.0/demos/agent 

Add VPN connection from openvpn file

sudo nmcli connection import type openvpn file path/to/vpnfile.ovpn

add the username to the connection with (replace "${vpnname}" and "${myname}" with yours:

nmcli connection modify "${vpnname}" +vpn.data username="${myname}"

then you should be able to enable VPN via Network settings

Screenshot with phosh

long press the power button, then you need to paste:

sudo apt-get install wl-clipboard

wl-paste > ~/Pictures/Screenshots/"$(date +'%Y-%m-%d_%H:%M:%S').png"

Enable desktop mode without a monitor plugged in

in /etc/machine-info change the value of CHASSIS from handset to desktop. now on screen keyboard can be enabled in settings->accessibility. To go back to default change it back to handset

Start GUI application as root

To start an GUI application as root type (for example : gedit)

sudo -E gedit