Hi congrats on new release. However, I installed the stable release on elitebook 8440p. Went smoothly but after the grub menu on reboot it hangs and won’t boot unless any usb drive is plugged in. When usb drive is in it boots fine.
I have ubuntu on a second partition and that boots ok. I have also reinstalled several times and also reinstalled grub on /dev/sda but does not help.
I had the beta release installed with no problems