Single Calibre library for two computers - how to?

JoePass · 02-21-2021, 04:10 PM

I use Calibre Labrary on my home PC and this library is synchronized with MegaSync cloud. In my laptop I use the same library synchronized with the same MegaSync. But there is a problem. I added new books in the library on my home PC, they are synchronized with MegaSync. On the laptop new books appear in Calibre library but Calibre does not show them! The files: metadata.db, metadata_pre_restore.db, metadata_db_prefs_backup.json are synchronized also. I started Calibre Library -> Verify library and appears problem - additional names. They are all new books. How do I fix this problem? How can I add new books to the list of books on laptop? I think it must be made automatically.

Sirtel · 02-21-2021, 04:48 PM

Never run Calibre on both computers at the same time. Never sync while Calibre is open.

Those two principles are all-important for running Calibre on multiple computers against the same library.

Basically pause syncing, open Calibre, do whatever you need to do with your library, close Calibre, resume syncing. Then on the other computer sync, pause syncing, open Calibre etc.

Still, it's very easy to cause library corruption by running Calibre on multiple computers, so check your library often.

JoePass · 02-21-2021, 06:24 PM

Thank you very much. I just verified - it works. The solution to the problem for me is very easy. I switched off the synchronization of the Calibre Library folder (it is easy I'm daemon Mega) on all computers. After working with Calibre and changing the library I switch on this folder and make synchronization. In other computers, I have to make synchronization before starting Calibre. Thank you once more. Due to this problem, I thought about changing the program to manage my library.

02-21-2021, 04:10 PM	#1
JoePass Junior Member Posts: 6 Karma: 10 Join Date: Feb 2021 Device: PC	Single Calibre library for two computers - how to? I use Calibre Labrary on my home PC and this library is synchronized with MegaSync cloud. In my laptop I use the same library synchronized with the same MegaSync. But there is a problem. I added new books in the library on my home PC, they are synchronized with MegaSync. On the laptop new books appear in Calibre library but Calibre does not show them! The files: metadata.db, metadata_pre_restore.db, metadata_db_prefs_backup.json are synchronized also. I started Calibre Library -> Verify library and appears problem - additional names. They are all new books. How do I fix this problem? How can I add new books to the list of books on laptop? I think it must be made automatically.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Two computers with Calibre, one library filesystem	sparker	Library Management	3	10-28-2019 11:06 PM
Using one calibre library on several computers	hym69	Library Management	1	09-04-2017 05:45 PM
Calibre Syncing Same Library DB on two different computers	crissman	Calibre	8	01-06-2015 06:03 PM
Calibre questions re. 2 computers using same library	slayda	Related Tools	3	08-16-2011 03:51 AM
Using one Calibre Library (via Dropbox) on Multiple Computers	PocketGoddess	Related Tools	14	02-20-2011 04:15 AM

02-21-2021, 04:48 PM	#2
Sirtel Grand Sorcerer Posts: 13,339 Karma: 238311259 Join Date: Jan 2014 Location: Estonia Device: Kobo Sage & Libra 2	Never run Calibre on both computers at the same time. Never sync while Calibre is open. Those two principles are all-important for running Calibre on multiple computers against the same library. Basically pause syncing, open Calibre, do whatever you need to do with your library, close Calibre, resume syncing. Then on the other computer sync, pause syncing, open Calibre etc. Still, it's very easy to cause library corruption by running Calibre on multiple computers, so check your library often.

02-21-2021, 06:24 PM	#3
JoePass Junior Member Posts: 6 Karma: 10 Join Date: Feb 2021 Device: PC	Thank you very much. I just verified - it works. The solution to the problem for me is very easy. I switched off the synchronization of the Calibre Library folder (it is easy I'm daemon Mega) on all computers. After working with Calibre and changing the library I switch on this folder and make synchronization. In other computers, I have to make synchronization before starting Calibre. Thank you once more. Due to this problem, I thought about changing the program to manage my library.

Advert