Recovering the Calibre library on a lost partition

fetito666 · 01-17-2021, 08:41 PM

Help!

I want to recover my Calibre libray which consists of ebooks (mobi / epubs) on an external HDD.

A new unassigned partition has been created of 3,7 TB. The partition is almost untouched so far. The "Windows 10 Media Creation Tool" only created a 32 GB partition out of the 4 TB. Probably I've selected the HDD instead of the pendrive for the creation of an installation medium. That's probably the cause of the data loss.

Which tool should I use?
Can I reconstruct the file-structure of my Calibre-library which contains all the metadata of the ebooks?
Will all files receive new random names?
Is there a tool that can detect in the raw data of the mobi and epub files?

Thank you!

kovidgoyal · 01-17-2021, 09:19 PM

A calibre library is simply files, one of which, metadata.db stores the metadata, provided you recover al lthe files intact you wont lose anything.

fetito666 · 01-17-2021, 09:59 PM

Thank you! Which tool do you recommend to recover files on an unassigned partition?

I hope that the file names are not lost.

kovidgoyal · 01-17-2021, 10:02 PM

No idea, sorry. It's been decades since I needed to recover a disk, nowadays I just use automatic off site backups and recover from those.

01-17-2021, 08:41 PM	#1
fetito666 Enthusiast Posts: 26 Karma: 10 Join Date: Feb 2015 Device: Kindle Paperwhite 3rd	Recovering the Calibre library on a lost partition Help! I want to recover my Calibre libray which consists of ebooks (mobi / epubs) on an external HDD. A new unassigned partition has been created of 3,7 TB. The partition is almost untouched so far. The "Windows 10 Media Creation Tool" only created a 32 GB partition out of the 4 TB. Probably I've selected the HDD instead of the pendrive for the creation of an installation medium. That's probably the cause of the data loss. Which tool should I use? Can I reconstruct the file-structure of my Calibre-library which contains all the metadata of the ebooks? Will all files receive new random names? Is there a tool that can detect in the raw data of the mobi and epub files? Thank you! Last edited by fetito666; 01-17-2021 at 08:51 PM.

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01-17-2021, 09:19 PM	#2
kovidgoyal creator of calibre Posts: 45,233 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	A calibre library is simply files, one of which, metadata.db stores the metadata, provided you recover al lthe files intact you wont lose anything.

01-17-2021, 09:59 PM	#3
fetito666 Enthusiast Posts: 26 Karma: 10 Join Date: Feb 2015 Device: Kindle Paperwhite 3rd	Thank you! Which tool do you recommend to recover files on an unassigned partition? I hope that the file names are not lost.

01-17-2021, 10:02 PM	#4
kovidgoyal creator of calibre Posts: 45,233 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No idea, sorry. It's been decades since I needed to recover a disk, nowadays I just use automatic off site backups and recover from those.

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