The lost+found directory at the root of a filesystem is where the filesystem repair command fsck puts chunks of data that do not belong to any file.

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linux rescue lost+found contents [duplicate]

One of the linux VM went into kernel panic due to storage related issues. Booting it in linux rescue, it said there are no valid linux partitions. After getting into the shell, and listing the ...
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Restore from lost+found

There was a problem on an EXT4 FS/memorycard and after and fsck all the files were put in the lost+found. Question: how can I restore the old filename/hierarchy from the lost+found? Or it is ...
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File missing after fsck

Recently, my HDD crashed and I had to run a fsck command. Many files were moved to the lost+found folder and I've retrieved the important ones using find and grep, but I can't find my SQL databases. ...
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Can you have multiple lost and found directories?

I was unaware of the mklost+found command until I read this question. The mklost+found command will make a new lost+found directory in the pwd. Why would you ever need to run this command? The ...
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Busybox NAS appliance

I have a NAS appliance that crashed last weekend. The IT guys apparently / maybe didn't recover it in the right way? There's about 50,000 directories in a "lost+found" directory each with a numeric ...
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What is the purpose of the lost+found folder in Linux and Unix?

There is a folder at the root of Linux and Unix operating systems called /lost+found/ What is it for? Under what circumstances would I interact with it? How would I interact with it?