recreating or updated and messed-up library

simonzed · 09-30-2022, 11:05 AM

So because if my ridiculously complicated backup and synch strategy, for months now I've been adding books, only for them to be quietly deleted a few days later. This has been going on since February! Today I spotted the issue and managed to restore all the deleted booked back to their original Calibre folders. The only problem is, the Calibre library is now horribly out of sync, and probably completely messed up because I've been adding books via my PC and my laptop. Is there any way for Calibre to scan all the folders and recreate the library that way from scratch? Or do I have to start a new library and copy all the books into it one at a time (as some folders have epub and mobi versions and from now on I'll only need the epub versions for my kindle)?

Thanks!

theducks · 09-30-2022, 11:13 AM

RISKY because you should never do any changes inside the Library folder using other than Calibre,

Did you also restore the metadata.opf in the same folder?
That contains the database Entry backup (needed for a restore).

BACKUP BEFORE trying. <<<<<<

On the Library Icon, Library Maintenance:restore database
That read those files. Otherwise you are going to build a New Library (in a new Location) using Add Books: From folders and sub-folders (not all metadata will be recovered if you had not previously embedded it into the Library Copy)

simonzed · 09-30-2022, 12:45 PM

kind of worked...with quite a few errors, but i went through them all and it seems ok now...hard to tell with a library of this size, truth be told...time will tell

Thanks for the help!

09-30-2022, 11:05 AM	#1
simonzed Member Posts: 22 Karma: 3010 Join Date: Mar 2011 Device: Kindle & Android	recreating or updated and messed-up library So because if my ridiculously complicated backup and synch strategy, for months now I've been adding books, only for them to be quietly deleted a few days later. This has been going on since February! Today I spotted the issue and managed to restore all the deleted booked back to their original Calibre folders. The only problem is, the Calibre library is now horribly out of sync, and probably completely messed up because I've been adding books via my PC and my laptop. Is there any way for Calibre to scan all the folders and recreate the library that way from scratch? Or do I have to start a new library and copy all the books into it one at a time (as some folders have epub and mobi versions and from now on I'll only need the epub versions for my kindle)? Thanks!

09-30-2022, 12:45 PM	#3
simonzed Member Posts: 22 Karma: 3010 Join Date: Mar 2011 Device: Kindle & Android	kind of worked...with quite a few errors, but i went through them all and it seems ok now...hard to tell with a library of this size, truth be told...time will tell Thanks for the help! Last edited by simonzed; 09-30-2022 at 12:50 PM.

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09-30-2022, 11:13 AM	#2
theducks Well trained by Cats Posts: 30,946 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	RISKY because you should never do any changes inside the Library folder using other than Calibre, Did you also restore the metadata.opf in the same folder? That contains the database Entry backup (needed for a restore). BACKUP BEFORE trying. <<<<<< On the Library Icon, Library Maintenance:restore database That read those files. Otherwise you are going to build a New Library (in a new Location) using Add Books: From folders and sub-folders (not all metadata will be recovered if you had not previously embedded it into the Library Copy)

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