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Old 01-15-2016, 05:22 AM   #1
jayp2013mobile
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Calibre 2.48.0 and 2.49.0 "unsafe"
I am using 2.47.0 but when I tried to upgrade I got an "unsafe" warning notice. Any idea of the why ?
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Old 01-15-2016, 05:30 AM   #2
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Probably because your OS is not able to verify SHA256 based digital signatures -- If you are on windows 7 and after make sure you have installed all windows updates. If you are on Vista, you are out of luck, you just have to ignore the warning.
Last edited by kovidgoyal; 01-15-2016 at 07:39 AM.
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Old 01-15-2016, 07:14 AM   #3
jayp2013mobile
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Ignore unsafe
I am running Vista Home Premium so I supose this it is "All spped ahead and damn the torpedoes".
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Old 01-15-2016, 12:45 PM   #4
jayp2013mobile
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Upgrade to 2.49.0
I ignored the warning and move up from 2.47.0 to the latest upgrade. I did had to save it to my computer and run it from there to be able to pass beyond the unsafe notice.
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Old 01-29-2016, 04:44 AM   #5
jayp2013mobile
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Unable to properly update from 2.49.0 to 2.50.0
I am still getting an "unsafe message" but, this time, after saving the 2.50.0 update set up to my VISTA Home Premium running portable and running it from my computer, I am running into a snag while trying to install the program.

calibre, version 2.50.0
ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click Show details to learn more.

Traceback (most recent call last):
File "site-packages\calibre\gui2\main.py", line 276, in initialize_db_stage2
File "site-packages\calibre\gui2\main.py", line 216, in start_gui
File "site-packages\calibre\gui2\ui.py", line 248, in initialize
File "site-packages\calibre\gui2\device.py", line 887, in init_device_mixin
File "site-packages\calibre\gui2\device.py", line 159, in __init__
File "site-packages\calibre\devices\scanner.py", line 249, in __init__
File "site.py", line 50, in load_module
File "site-packages\calibre\devices\winusb.py", line 399, in <module>
File "site-packages\calibre\devices\winusb.py", line 351, in cwrap
AttributeError: function 'CM_Request_Device_EjectW' not found

Any uggestion ?
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Old 01-29-2016, 05:06 AM   #6
kovidgoyal
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That's strange, according to microsoft that function should be available in windows Vista https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx

I suggest downgrading to 2.49 for the moment. Lets see if any other vista users report problems.
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Old 01-29-2016, 05:10 AM   #7
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downgrading from 2.50.0 t0 2.49.0
What would be the best way to do this ?
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Old 01-29-2016, 05:15 AM   #8
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Uninstall 2.50 and install 2.49 all previous releases of calibre are linked to from the download page. Doing so will not affect your calibre books/settings/plugins.
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Old 01-29-2016, 05:39 AM   #9
jayp2013mobile
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trying to downgrade to 2.49.0
I uninstalled 2.50.0 from the control panel and tried to install back 2.49.0 using Windows 32-bits installer from:

http://download.calibre-ebook.com/2.49.0/

I again had to save it to my computer and run it from there to skip the unsafe notice.

The process seems to complete but I cannot get the program to run even after a repair run from the control panel.

Suggestion ?
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Old 01-29-2016, 06:14 AM   #10
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Hi,
I'm getting the exact same error and traceback after updating to 2.50. And if I Ok the error dialog the process hangs (it's listed in task manager, but no window shows).

I'm also running Vista Business.

Thanks
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Old 01-29-2016, 06:27 AM   #11
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I did a repair from the 2.49.0 setup and a full system restart.

Version 2.49.0 now seems to be working as it did.
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Old 01-29-2016, 06:48 AM   #12
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OK, I have removed that function (it was unused in any case). The change will be in 2.51
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Old 01-29-2016, 06:59 AM   #13
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My suggestion is dumping the crap that is Vista and move to Windows 10.
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Old 01-29-2016, 03:01 PM   #14
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Quote:
Originally Posted by JSWolf View Post
My suggestion is dumping the crap that is Vista and move to Windows 10.
I really wish you would stop telling people to change O/S. It's there choice, possibly involving hardware upgrades. Just because YOU are happy making the switch does not make it so for all users.
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Old 01-29-2016, 03:05 PM   #15
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My suggestion is upgrade calibre to 2.50.1 and stop worrying about it.

Quote:
Originally Posted by JSWolf View Post
My suggestion is dumping the crap that is Vista and move to Windows 10.
Maybe you should dump the crap that is Windows and move to linux.

Oh, wait. Windows Vista works fine and there is no justified reason to dump it.

Stop proselytizing Windows 10, or maybe I will start matching you post for post with proselytizing for linux, how about that?
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