I inadvertently updated my Linux kernel to version 4.2.0-30 from 3.19.0-33 and it has broken my WiFi and USB drivers, is there a way for me to downgrade my kernel using some sort of cached version?
sudo apt-get purge linux-image-4.2.0-30-generic in terminal to remove the new 4.2 kernel.Then reboot
WARNING : If you have removed your old kernel using
apt-get or synaptic this can result in an unbootable computer
You really do not need to do this right now when booting ...
- get to the grub menu when booting
- select the previous kernel
- run it
at this point see if the WiFi and USB work If so THEN you can remove the kernel if it bothers you