How to Change WiFi Password in Read-Only RPi Jessie Lite?

Changing the WiFi password on a read-only RPi Jessie Lite system can be a bit tricky due to the limitations posed by the read-only file system. However, with some workarounds, it is still possible to achieve this. Here is a step-by-step guide on how to change the WiFi password in read-only RPi Jessie Lite:

1. Access the Raspberry Pi by connecting a keyboard and monitor, or through SSH.
2. Open the terminal on the Raspberry Pi.
3. Enter the command sudo mount -o remount,rw / to remount the file system as read-write temporarily.
4. Find the network configuration file by using the command cd /etc/NetworkManager/system-connections/
5. List the files in the directory by using ls and find the file corresponding to your WiFi network.
6. Edit the configuration file using the command sudo nano your_network_name (replace 'your_network_name' with the actual file name).
7. Look for the line that contains the WiFi password and update it with the new password.
8. Save the file by pressing Ctrl + O and exit nano using Ctrl + X.
9. Remount the file system as read-only using sudo mount -o remount,ro /.

By following these steps, you will be able to change the WiFi password on your read-only RPi Jessie Lite system. Remember to handle the read-only file system with caution to avoid any unintended changes.

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