Ubuntu Installation Problems

Ubuntu Installation Problems 1. How to enter the root account
The Default root Account of Ubuntu is not activated.
Sudo passwd root activate root
Then enter the new root password and use su root to switch 2. how to install the driver lspci for nvidia notebook dual graphics card | grep-I vga display graphics card list. 0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09. 0 VGA compatible controller: the NVIDIA Corporation GeForce GT 630 M (rev a1) is correctly identified after the update. The end of the Nvidia card information is rev a1, indicating that the unique display has been disabled. Install bumblebee sudo add-apt-repository ppa: bumblebee/stable sudo apt-get update sudo apt-get install bumblebee-nvidia to view the bumblebee version: bumblebeed -- version use the optirun program name to manually enable nvidia to run the program optirun vmware to view bunblebee logs cat/var/log/syslog | grep-I bumblebee