I recently decided to replace the SD card in my Raspberry Pi and reinstall the system. Without any special backups in place, I turned to rsync to duplicate /var/lib/docker with all my containers, including Nextcloud.

Step #1: I mounted an external hard drive to /mnt/temp.

Step #2: I used rsync to copy the data to /mnt/tmp. See the difference?

Step #3: I reformatted the SD card.

Step #4: I realized my mistake.

Moral: no one is immune to their own stupidity 😂

Unless you’ve used something secure for formatting or wrote data to the SD after, consider attempting data recovery.

@summerof69@lemm.ee
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No luck with extundelete (segfault) and testdisk (sees some deleted files, but not /var/lib/docker). At least I can always throws it away and not worry about safety of my data! :)

@Nilz@sopuli.xyz
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You can always try professional data recovery services. It just depends on how much the data is worth to you.

Atemu
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And how much time you want to put into not getting scammed.

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