Tagarchief: undelete

Manually undeleting a file from ext2, ext3, ext4 or any other filesystem

Yesterday, I worked on a PHP project all day. At the end of the day, I moved it from development to staging. And finally I deleted it from staging. Oops!

I just discovered an hour ago what I did. What to do, what to do...?

Back in the old days, Midnight Commander supported some undelete function, but this option has been removed in the CentOS 6 version I'm running.

Then there's the option to use extundelete, but that would need compiling and a lot of other disk activity before I could use it. Normally, I would compile such a program on another server, then hook up the disk. But since it's a cloud server that I cannot access in any other way but SSH, that's not an option.

And finally there's the option to use ext3undel+foremost+testdisk from rpmforge to undelete information, but somehow I couldn't get all dependencies to install. So there's no usable software to fix this.

Or is there?

Manual recovery

Most filesystems, except for filesystems that do raid/compression/encryption, just write data to blocks on the disk in a structured manner. If you could save and access the blocks, you may be able to do some manual recovery.
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