Which of the following commands overwrites the bootload…

Which of the following commands overwrites the bootloader located on /dev/sda without
overwriting the partition table or any data following it?

Which of the following commands overwrites the bootloader located on /dev/sda without
overwriting the partition table or any data following it?

A.
dd if=/dev/zero of=/dev/sda bs=512

B.
dd if=/dev/zero of=/dev/sda bs=512 count=1

C.
dd if=/dev/zero of=/dev/sda bs=440 count=1

D.
dd if=/dev/zero of=/dev/sda bs=440

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micormat

micormat

WRONG ANSWER! should be C-> dd if=/dev/zero of=/dev/sda bs=512 count=1

Because MBR has 512 and you need to put count=1, if not will copy until end of disc.

ISN’T IT??

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ahCojone

ahCojone

The correct answer is “dd if=/dev/zero of=/dev/sda bs=440 count=1” (C) because the bootloader size is 440 byte.

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