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I have a really big problem.
I wanted to delete files from USB. I searched and have found a link did it on terminal something like

dd if=/dev/urandom of=/dev/sda1 bc = 4MG

and then my PC just frozen I shut it down. Now My PC can't turn on

Please help me

Mostafa Ahangarha
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Vusala Hasanli
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1 Answers1

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There is a high probability that /dev/sda1 (/dev/sda being first hard disk) was your root partition and you have overwritten first 4MB of it with random data. You will have to reinstall Ubuntu on your system. before doing this. I recommend that you get an bootable USB with one of the Ubuntu Rescue distribution and try to salvage the data from the root partition. You will need an external hard disk drive to save the salvaged data.

Overview of the rescue linux OSs:

https://opensource.com/life/15/2/five-specialized-linux-distributions-computer-repair

NuMessiah
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