Updating bios through cd
The setup script can be accessed from the Retro Pie menu in emulationstation.
It can also be accessed from the terminal with Core Packages Each section of the manage packages portion of the setup script have the option to install/update all packages and remove all installed packages.
One way this is avoided is for BIOS to use what's called a "boot lock" section of its software that gets updated on its own apart from the rest so that if corruption is found, a recovery process can be undergone to prevent damage.
BIOS might check if the full update has been applied by verifying that the checksum matches up with the intended value.
BIOS access and configuration on PC systems is independent of any operating system because the BIOS is part of the motherboard hardware.
It doesn't matter if a computer is running Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Linux, Unix, or no operating system at all—BIOS functions outside of the operating system environment and is no way dependent upon it.
This could brick the motherboard and render the computer unusable, making it difficult to regain functionality.Like drivers and softwares, updates for BIOS are also released occasionally, but you should have a very good reason for updating your BIOS, also called flashing your BIOS. A menu will open, and select BIOS setup from it Use the above given method in Method 1 to check if newer version of the BIOS is available. If you have downloaded a simple “BIOS Update Utility for Windows” file, then next to “Create a bootable disk using” select Free DOS. After extraction, uncheck “Install BIOS Utility now.” option. Paste the previously copied file path in the address bar up above.Unless you are having a specific issue like compatibility while installing new hardware that is resolvable through BIOS update, only then you should update your BIOS. In the window, make sure System Summary is selected in the left pane. If in the results you can see “BIOS Update Bootable CD iso” whose BIOS version is newer than you already have then download it. Copy everything form the opened folder to the USB you just made bootable. Do not turn off your computer or laptop in any case during the updating process.First you’ll have to know the version of current BIOS installed on your system. In the larger right pane, locate BIOS Version/Date. If there is no such thing, then simply download “BIOS Update Utility for Windows”. Connect the USB to the target system, power it on and keeping tapping F12 until you see the Boot menu. In case of laptop, make sure the battery is present in the laptop and the AC adapter is connected with it the whole time.To update your BIOS on your Lenovo computer/laptop, you will first have to check which version of BIOS is currently running on your system. Connect the USB you’re going to make bootable on another system you have access too. If F12 doesn’t’ works, it may be different for your model, you’ll have to check it from Lenovo’s website. If this guide didn’t work out for your model, do let us know and we will guide for your specific model.
If it doesn't, and the motherboard supports Dual BIOS, that BIOS backup can be restored to overwrite the corrupted version.