Transient: A fast tutorial to inform you in case your system makes use of the trendy UEFI or the legacy BIOS. Directions for each Home windows and Linux have been offered.
When you’re making an attempt to twin boot Linux with Home windows, you’ll need to know when you’ve got UEFI or BIOS boot mode in your system. It helps you resolve in partition making for putting in Linux.
I’m not going to debate what’s BIOS right here. Nonetheless, I wish to inform you just a few benefits of UEFI over BIOS.
UEFI or Unified Extensible Firmware Interface was designed to beat among the limitations of BIOS. It added the power to make use of bigger than 2 TB disks and had a CPU impartial structure and drivers. With a modular design, it supported distant diagnostics and repairing even with no working system put in and a versatile without-OS atmosphere together with networking functionality.
Benefit of UEFI over BIOS
UEFI is quicker in initializing your hardware.
Supply Safe Boot which implies all the pieces you load earlier than an OS is loaded needs to be signed. This offers your system an added layer of safety from operating malware.
BIOS don’t help a partition of over 2TB.
Most significantly, in case you are twin booting it’s all the time advisable to put in each the OS in the identical booting mode.
If you’re looking for out whether or not your system runs UEFI or BIOS, it’s not that troublesome. Let me begin with Home windows first and afterward, we’ll see how one can verify UEFI or BIOS on Linux methods.
Examine in case you are utilizing UEFI or BIOS on Home windows
On Home windows, “System Data” in Begin panel and beneath BIOS Mode, yow will discover the boot mode. If it says Legacy, your system has BIOS. If it says UEFI, properly it’s UEFI.
Various: In case you utilizing Home windows 10, you possibly can verify whether or not you’re utilizing UEFI or BIOS by opening File Explorer and navigating to C:WindowsPanther. Open file setupact.log and seek for the beneath string.
Detected boot atmosphere
I might advise opening this file in notepad++, since its an enormous textual content file and notepad could dangle (not less than it did for me with 6GB RAM).
You will discover a couple of strains which gives you the data.
2017-11-27 09:11:31, Information IBS Callback_BootEnvironmentDetect:FirmwareType 1.
2017-11-27 09:11:31, Information IBS Callback_BootEnvironmentDetect: Detected boot atmosphere: BIOS
[Quick Tip] How To Know If You Have 32 Bit or 64 Bit Pc in Ubuntu
Examine in case you are utilizing UEFI or BIOS on Linux
The simplest strategy to discover out in case you are operating UEFI or BIOS is to search for a folder /sys/firmware/efi. The folder will likely be lacking in case your system is utilizing BIOS.
/sys/firmware/efi exists means system makes use of UEFI
Various: The opposite methodology is to put in a package deal referred to as efibootmgr.
On Debian and Ubuntu based mostly distributions, you possibly can set up the efibootmgr package deal utilizing the command beneath:
sudo apt set up efibootmgr
As soon as achieved, sort the beneath command:
In case your system helps UEFI, it is going to output completely different variables. If not you will note a message saying EFI variables are usually not supported.
Discovering whether or not your system is utilizing UEFI or BIOS is simple. On one hand, options like sooner and safe boot present an higher hand to UEFI, there’s not a lot that ought to trouble you in case you are utilizing BIOS – until you’re planning to make use of a 2TB onerous disk in addition.