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Kovid Goyal 2011-08-18 17:14:29 -06:00
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src/calibre/manual/faq.rst
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@ -438,7 +438,19 @@ Simply copy the |app| library folder from the old to the new computer. You can f
Note that if you are transferring between different types of computers (for example Windows to OS X) then after doing the above you should also click the arrow next to the calibre icon on the tool bar, select Library Maintenance and run the Check Library action. It will warn you about any problems in your library, which you should fix by hand.
.. note:: A |app| library is just a folder which contains all the book files and their metadata. All the emtadata is stored in a single file called metadata.db, in the top level folder. If this file gets corrupted, you may see an empty list of books in |app|. In this case you can ask |app| to restore your books by clicking the arrow next to the |app| icon on the toolbar and selecting Library Maintenance->Restore Library.
.. note:: A |app| library is just a folder which contains all the book files and their metadata. All the metadata is stored in a single file called metadata.db, in the top level folder. If this file gets corrupted, you may see an empty list of books in |app|. In this case you can ask |app| to restore your books by clicking the arrow next to the |app| icon on the toolbar and selecting Library Maintenance->Restore Library.
The list of books in |app| is blank!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In order to understand why that happened, you have to understand what a |app| library is. At the most basic level, a |app| library is just a folder. Whenever you add a book to |app|, that book's files are copied into this folder (arranged into sub folders by author and title). Inside the |app| library folder, at the top level, you will see a file called metadata.db. This file is where |app| stores the metadata like title/author/rating/tags etc. for *every* book in your |app| library. The list of books that |app| displays is created by reading the contents of this metadata.db file.
There can be two reasons why |app| is showing a empty list of books:
* Your |app| library folder changed its location. This can happen if it was on an external disk and the drive letter for that disk changed. Or if you accidentally moved the folder. In this case, |app| cannot find its library and so starts up with an empty library instead. To remedy this, simply click the arrow next to the |app| icon in the |app| toolbar (it will say 0 books underneath it) and select Switch/create library. Click the little blue icon to select the new location of your |app| library and click OK.
* Your metadata.db file was deleted/corrupted. In this case, you can ask |app| to rebuild the metadata.db from its backups. Click the arrow next to the |app| icon in the |app| toolbar (it will say 0 books underneath it) and select Library maintenance->Restore database. |app| will automatically rebuild metadata.db.
Content From The Web
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@ -446,6 +458,7 @@ Content From The Web
:depth: 1
:local:
I obtained a recipe for a news site as a .py file from somewhere, how do I use it?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Start the :guilabel:`Add custom news sources` dialog (from the :guilabel:`Fetch news` menu) and click the :guilabel:`Switch to advanced mode` button. Delete everything in the box with the recipe source code and copy paste the contents of your .py file into the box. Click :guilabel:`Add/update recipe`.