hackathons/dar1/2_prepare_computer/2_empty_disk.md
2024-02-04 09:30:42 +03:00

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# Empty disk
## prepare rescue USB stick
We use system rescue procedure to empty the disk, its anyhow very handy to have a USB stick with this rescue OS.
see https://www.system-rescue.org/Download/
see https://fastly-cdn.system-rescue.org/releases/11.00/systemrescue-11.00-amd64.iso
![](img/balena.png)
we use balena etcher tool to burn the ISO onto a USB stick, its a very straight forward process to burn the iso on a USB stick.
the tool can be found on https://etcher.balena.io/
## now boot computer with the USB stick
make sure bios has been prepared to boot from USB see [here](1_prepare_bios.md)
![](img/usb_rescue.png)
after booting you should see something like this
Select first item
![](img/rescue2.png)
check which disk to erase do
```bash
sfdisk -l
```
![](img/sfdisk.png)
in this case we see /dev/sda... which is the USB stick we are booting from and /dev/nvme0n1 which is the internal nvme disk, this is the one we will have to empty
## empty the disk
Be careful following command will erase your disk completely !!!
![](img/rescue_erase.png)
```bash
wipefs -a /dev/nvme0n1
```
Now your disk is empty, go to next step to boot Zero-OS