So far the only solution I have found to work is to use the web browser SSL VPN setup on the Fortigate, and then connect using the Raspian (Buster) Chromium browser. You wont have tunnel mode but for RDP, SSH etc it works fine.
For apps that require tunnel mode my workaround is to create a RDP/VNC desktop/jumpbox with supporting software on the network ...
Add the following lines to /boot/config.txt:
# Disable Activity LED
# Disable Power LED
Then reboot your Pi and both LEDs should be off permanently. Just tried it myself.
My source: https://buyzero.de/blogs/news/raspberry-pi-strom-sparen-...
I also encountered this message Can't open file to write as I attempted to edit the config.txt file from within Raspbian.
I had just clicked on it and it opened in whatever Raspbian has as the default editor. That editor doesn't run with root privileges and therefore was not allowed to write to the config.txt file.
The easiest solution found here is was to ...
This is what it was for according to their website at https://www.collabora.com/about-us/our-work.html
They might have provided a browser or driver's according to my quick read 👍
They created the desktop environment after a tiny bit more reading of their webpage 😀
Ubuntu refuses to mount the rootfs partition because it finds the partition is larger than the device by 1 block. Simply repairing the filesystem (with fsck or otherwise) is unlikely to fix that.
You should try to shrink the rootfs partition (try gparted for instance). Shrinking by 1 MB should be enough. Or, if you still can boot your Raspberry with it, you ...