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RIP my photos from 2017 and contacts from 2005 (lemm.ee)

submitted 2 years ago by summerof69@lemm.ee to c/selfhosted@lemmy.world

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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 😂

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[–] xlash123@sh.itjust.works 23 points 2 years ago* (last edited 2 years ago) (1 children)

If you haven't done much writing to the SD card, you may be able to recover the data. Data isn't really "deleted", it is just labeled as deleted. There is software that can comb through the raw data and try to make sense of what files were there. I don't know of any specific software, so if anyone knows, please reply

Edit: Another commenter mentioned some success with DMDE

Edit 2: Worth mentioning that this is true of formats. As long as it doesn't zero out the entire media, it just edits the file system metadata to say there are no files.

[–] space@lemmy.dbzer0.com 11 points 2 years ago

PhotoRec and TestDisk are probably the best, but they don't recover file structure.