bios

How to configure your BIOS to allow for PXE network or USB booting (Lenovo Thinkpad P50)

In order to boot from the network, you will have to make sure that the BIOS has secure boot disabled, and the boot mode is set to Legacy. Additionally, it is a good idea to increase the memory for display and enable virtualization. Continue reading for a step by step guide for doing all of this.

Note: This guide is specifically for the Lenovo P50, but the concepts and terminology are going to be pretty similar for most computers.



Press Enter when you get to this part of the boot screen. (Note: this will likely be different for different computers. Other common keys are Esc, F1, F2, F8, and F12.... you will probably want to do a Google search for "shortcut key to enter bios for )



If you are too slow, or it starts booting into your existing OS, you can always press and hold the power button for about 5-10 seconds to do a hard reboot.




Press F1 to enter BIOS. (Again... do a Google search for your specific computer model)


Navigate to Config>Display




Change the memory to 512 (This has nothing to do with booting, but it is a good idea to look at this section to get the best graphics performance [if you are into that sort of thing])




Change the mode to "Discrete"




Press "Esc" to go back a level then navigate to Security>Virtualization (you won't be able to create and use a Virtual machine unless you do this; again... not related to booting but still a good idea to do while you are here).




Enable both Virtualization options




Navigate to Security>Secure Boot




Set Secure Boot to "Disabled"




Navigate to Startup>UEFI/Legacy Boot and set the boot mode to "Legacy Only"




Navigate to Restart>Exit Saving Changes




After the computer restarts, press F12 to get the boot menu (note: if you are too slow or the computer does not boot, do a hard reset by pressing and holding the power button)




Select PCI Lan or select the USB


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