Recovery data from chunks without metadata :) about moosefs HOT 4 OPEN

@deltabweb, thx for advice. https://github.com/asyslinux/irec - utility simply find start/end jpg bytes and then recovery jpg files with size <64MB from any raw/device/chunk file, in this case there is no need to skip first 8KB header. Now the recovery process is underway, in a few days I will write the result.

from moosefs.

Updated information about recovery jpg files, now as default recovery tool i using standard recoverjpeg utility in linux distros + small shell script, this is better tool for recovery jpg files, than custom script or program. New manual here: https://github.com/asyslinux/irec

from moosefs.

Success story. I recovered from MooseFS chunks most files with size <64MB - jpg, png, webp, docs, archives and much more, photorec can recover around 300+ different types of files. Files recovered without real filenames.

Release of recovery manual for recovery all file types from MooseFS with photorec: https://github.com/asyslinux/irec
Maybe someone will find this useful. Developers can close the issue and save this manual for another people.

Thanks.

from moosefs.

Hi,
To quickly answer your first question, the chunks are prefixed with an 8KB header.
I had to recover jpg files recently as well; for small files, you can recover the data with tail -c +8193 chunk.mfs > image.jpg

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