Run Calibre Twice on the Same Computer

Tanjamuse · 09-07-2015, 06:33 AM

Hi.

I couldn't find a thread specifying this, but if I overlooked something I apologize.

Can I run two different versions of Calibre on the same computer?

Thanks

aleyx · 09-07-2015, 07:04 AM

I guess if you run them as two different users, with two different libraries, you could.

Don't think you can do it with the same user, and two users on the same library is asking for trouble.

N.

Tanjamuse · 09-07-2015, 07:06 AM

I just found an old thread where someone suggested the Portable version alongside the normal version.

eschwartz · 09-07-2015, 10:09 AM

No, you can't -- calibre is specifically designed to not open multiple times on the same user account.
The portable version is just a launcher program that opens the main calibre executable after setting some environment variables.

As aleyx said, it's asking for trouble to open the same library for editing in two places at once.

aleyx · 09-07-2015, 10:27 AM

If you'll tell us what you want to do, we may be able to tell you how to do it with a minimal risk to your libraries.

N.

Tanjamuse · 09-07-2015, 10:28 AM

It's okay, I'll borrow the hubby's computer and run Calibre from there instead. I would rather do that than risk trouble.

theducks · 09-07-2015, 11:18 AM

If you just want to Peek (Read only Library), the content server (the CLI standalone) can be run on another library at the same time the GUI is running. You use a standard web browser for that kind of peeking.

The Library and related server, do not need to be on Your machine
Hubby can run a Calibre Content server on his Library, and you can view it with your browser (Assumes you share a network)

You can have Multiple Libraries on your computer and switch between them (library icon). They just can't be open in the GUI at the same time.

Some tools, can do operations across Libraries : Find Duplicates PI, Copy to Library

cybmole · 09-07-2015, 12:13 PM

Is the question really about different libraries for different users. So when user a logs in they see library a, when they log out and user b logs in they see library b ?
That should work in windows 7, 8, 10 as all the data is in user specific locations.

eschwartz · 09-07-2015, 01:43 PM

Quote:

Originally Posted by Tanjamuse

It's okay, I'll borrow the hubby's computer and run Calibre from there instead. I would rather do that than risk trouble.

"instead".

Instead of what?

Rather than asking us how to run calibre 2x (a solution to a problem), perhaps you could start with what you are trying to accomplish (a problem), and then we can help you figure out how to do that.

Always start with the problem you have, not your (perceived) solution. Then we don't have to make assumptions about what you need.

Tanjamuse · 09-07-2015, 01:45 PM

Instead of running two versions of Calibre on my laptop.

eschwartz · 09-07-2015, 02:01 PM

Sigh.

That still doesn't explain what you actually want to do.
What is your objective that will be solved by running two versions of calibre on your laptop?

What goal are you trying to accomplish?

Is your goal to be able to say "I run two parallel instances of calibre", for the bragging rights?
Do you want to be able to look up things in different libraries?
Do you want to compare libraries?
Do you want to run the content server for a different library than the one you have open?

theducks · 09-07-2015, 03:07 PM

Quote:

Originally Posted by eschwartz

Do you want to run the content server for a different library than the one you have open?

I do this all the time. I simply launch the CLI on the specified library (to use a port not configured in the GUI)

eschwartz · 09-07-2015, 03:15 PM

I never run the servers via the GUI -- I have configured system services for them, they run at boot.

kacir · 09-07-2015, 03:20 PM

Quote:

Originally Posted by Tanjamuse

Can I run two different versions of Calibre on the same computer?

Using a virtual machine might be a path of least resistance.
You do not have to run windows inside the virtual machine, you can run some Linux distribution. Legally.

You still did not tell us why you want to run Calibre twice.

Tanjamuse · 09-07-2015, 03:21 PM

I wanted to be able to use one library to download Fanfiction and the other to edit other stuff, like comics and books.

09-07-2015, 06:33 AM	#1
Tanjamuse Wizard Posts: 1,327 Karma: 5306 Join Date: Jan 2014 Device: none	Run Calibre Twice on the Same Computer Hi. I couldn't find a thread specifying this, but if I overlooked something I apologize. Can I run two different versions of Calibre on the same computer? Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Do I need to run Calibre content server to use Calibre Companion	flyash	Calibre	2	04-06-2013 10:19 PM
Can I "Visit" Calibre On One Computer From Calibre On Another Computer?	tanteoma	Calibre	5	06-08-2012 01:54 AM

09-07-2015, 07:04 AM	#2
aleyx Addict Posts: 250 Karma: 20386 Join Date: Sep 2010 Location: France Device: Bookeen Diva, Kobo Clara BW	I guess if you run them as two different users, with two different libraries, you could. Don't think you can do it with the same user, and two users on the same library is asking for trouble. N.

09-07-2015, 07:06 AM	#3
Tanjamuse Wizard Posts: 1,327 Karma: 5306 Join Date: Jan 2014 Device: none	I just found an old thread where someone suggested the Portable version alongside the normal version.

09-07-2015, 10:09 AM	#4
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	No, you can't -- calibre is specifically designed to not open multiple times on the same user account. The portable version is just a launcher program that opens the main calibre executable after setting some environment variables. As aleyx said, it's asking for trouble to open the same library for editing in two places at once.

09-07-2015, 10:27 AM	#5
aleyx Addict Posts: 250 Karma: 20386 Join Date: Sep 2010 Location: France Device: Bookeen Diva, Kobo Clara BW	If you'll tell us what you want to do, we may be able to tell you how to do it with a minimal risk to your libraries. N.

09-07-2015, 10:28 AM	#6
Tanjamuse Wizard Posts: 1,327 Karma: 5306 Join Date: Jan 2014 Device: none	It's okay, I'll borrow the hubby's computer and run Calibre from there instead. I would rather do that than risk trouble.

09-07-2015, 11:18 AM	#7
theducks Well trained by Cats Posts: 31,048 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	If you just want to Peek (Read only Library), the content server (the CLI standalone) can be run on another library at the same time the GUI is running. You use a standard web browser for that kind of peeking. The Library and related server, do not need to be on Your machine Hubby can run a Calibre Content server on his Library, and you can view it with your browser (Assumes you share a network) You can have Multiple Libraries on your computer and switch between them (library icon). They just can't be open in the GUI at the same time. Some tools, can do operations across Libraries : Find Duplicates PI, Copy to Library

09-07-2015, 12:13 PM	#8
cybmole Wizard Posts: 3,720 Karma: 1759970 Join Date: Sep 2010 Device: none	Is the question really about different libraries for different users. So when user a logs in they see library a, when they log out and user b logs in they see library b ? That should work in windows 7, 8, 10 as all the data is in user specific locations.

09-07-2015, 01:45 PM	#10
Tanjamuse Wizard Posts: 1,327 Karma: 5306 Join Date: Jan 2014 Device: none	Instead of running two versions of Calibre on my laptop.

09-07-2015, 02:01 PM	#11
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	Sigh. That still doesn't explain what you actually want to do. What is your objective that will be solved by running two versions of calibre on your laptop? What goal are you trying to accomplish? Is your goal to be able to say "I run two parallel instances of calibre", for the bragging rights? Do you want to be able to look up things in different libraries? Do you want to compare libraries? Do you want to run the content server for a different library than the one you have open?

09-07-2015, 03:15 PM	#13
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	I never run the servers via the GUI -- I have configured system services for them, they run at boot.

Advert

Advert

09-07-2015, 03:21 PM	#15
Tanjamuse Wizard Posts: 1,327 Karma: 5306 Join Date: Jan 2014 Device: none	I wanted to be able to use one library to download Fanfiction and the other to edit other stuff, like comics and books.