Have you ever had those moments when your SD card just randomly out of nowhere becomes unreadable and you cant transfer files to it anymore / write to it?

Has happened to mee too, as such - below guide.

On linux you can use fsck(1) to fix “corrupted” Memory Sticks - you’ll need to find a way to mount the card you have (usually an Micro SD card inside an adapater) to your computer. Please note that this part of the guide is only for Linux - for the Windows parts of the guide, please see here.

I’ve added EMOJIS to point you to look at the warnings, please actually read them as, if you fuck up - we can’t help you.

On Linux

Finding Your SD Card

⚠️ WARNING ⚠️

If you pick the wrong drive here, there’s a real possiblity to cause ❗ IRREVERSIBLE ❗ damage to your main partition / other drives.

Take five seconds to check the storage size before running any repair or format commands.

1. Unplug your SD Card from the adapter.
2. Run this: lsblk
3. Plug the SD Card back into the adapter.
4. Run it again: lsblk
5. Look at the listing, they should differ and the new entry is your SD Card. It usually shows up as mmcblk0 or something like sdb or sdc. Make sure that you’re NOT looking at any of your main drives !

Fixing the Partition

Once you have the exact partition name (ie; mmcblk0p1 ), you can repair it - just replace mmcblk0p1 in the steps below with your actual partition name (that you’ve made SURE is none of your main drives).

First, unmount the drive:

sudo umount /dev/mmcblk0p1

Next, run the FAT repair tool - this is automatic:

sudo fsck.fat -a /dev/mmcblk0p1

If you prefer to take a look what’s broken and approve manually, use this:

sudo fsck.fat -r /dev/mmcblk0p1