joplin-mdbooks-website/content/software/test-and-format-sd-cards.md

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2021-08-18 06:44:53 -04:00
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title = "Test and format SD cards"
weight = 2
sort_by = "weight"
insert_anchor_links = "right"
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I wrote a short bash script that tests SD cards with [F3](https://3ds.hacks.guide/f3-(linux).html) to see if they're fake, deletes everything on them, creates a new partition table and one exFAT partition on them.
Here it is:
```bash
#!/usr/bin/env bash
set -euox pipefail
sudo umount --force "$1"1 || true
sudo f3probe --destructive --time-ops "$1"
sudo parted --script "$1" "mklabel msdos" "mkpart primary ext4 0% 100%"
sleep 1
sudo mkfs.exfat -n Stavros "$1"1
eject "$1"
```
Save it as `formatsd.sh` and run it as `./formatsd.sh /dev/sdX`.
* * *
<p style="font-size:80%; font-style: italic">
Last updated on August 18, 2021. For any questions/feedback,
email me at <a href="mailto:hi@stavros.io">hi@stavros.io</a>.
</p>