I burned an ISO a long time back in a Pen Drive. How to check whether the burned one in the Pen Drive is MBR or GPT ? Is it possible to tell the partition scheme by the folder structure ?
What happens when we changing the partition scheme in Rufus ?
Answer
Use gdisk to know if usb is mbr or gpt first.. on windows if you have one hard disk and external usb connected you can use the command "gdisk 1:" from cmd ( don't forget to run cmd as administrator) if the result was that you have gpt with protective mbr your usb stick is using GPT , overwise your usb is using MBR .. you can enter p to check that it's your usb because usb stick partition table information will be shown. If you have GPT and want to check if you are booting from USB under UEFI Mode or legacy mode ( because gpt disks can also be booted from under legacy mode ) you can check usb file system if it's FAT32 and have EFI folder inside it then you are probably boot from it under UEFI but to be sure try entering your BIOS Setup and disable Legacy mode (CSM Mode) by choose only UEFI then boot your device from usb. It will boot using only EFI bootloader. Your computer must be UEFI compatible first to be able to boot using this way.
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