Calibre on WSL, .note.ABI-tag "bug"

ratinox · 09-16-2022, 04:27 PM

On Debian running natively the script works fine. On Debian running in WSL1 I get the trace below. Some searching around lead me to this bug report for WSL regarding shared libraries.

https://github.com/Microsoft/WSL/issues/3023

Sure enough, the distributed libQt6Core.so.6 include the magic "for GNU/Linux 3.17.0" string. Stripping the .note.ABI-tag from the library makes it work.

Code:

[xyz: ~]$ ./calibre.sh
2022-09-16 16:03:32 URL:https://download.calibre-ebook.com/linux-installer.sh [33493/33493] -> "-" [1]
Using python executable: /usr/bin/python3
Installing to /opt/calibre
Downloading tarball signature securely...
Using previously downloaded calibre-6.5.0-x86_64.txz
Extracting files to /opt/calibre ...
Extracting application files...
Failed to import PyQt module: PyQt6.QtCore with error: libQt6Core.so.6: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "runpy.py", line 196, in _run_module_as_main
  File "runpy.py", line 86, in _run_code
  File "site.py", line 45, in <module>
  File "site.py", line 39, in main
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/linux.py", line 12, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/customize/ui.py", line 17, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/customize/builtins.py", line 704, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/devices/kindle/driver.py", line 5, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/devices/kindle/apnx.py", line 20, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/devices/kindle/apnx_page_generator/generators/accurate_page_generator.py", line 7, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/devices/kindle/apnx_page_generator/generators/fast_page_generator.py", line 7, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/devices/kindle/apnx_page_generator/i_page_generator.py", line 10, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/ebooks/mobi/reader/mobi6.py", line 27, in <module>
  File "bypy-importer.py", line 279, in exec_module
  File "calibre/utils/img.py", line 13, in <module>
ImportError: cannot import name 'QBuffer' from 'qt.core' (/opt/calibre/lib/calibre-extensions/python-lib.bypy.frozen/qt/core.pyc)
Run "calibre" to start calibre
[xyz: ~]$

kovidgoyal · 09-16-2022, 10:39 PM

Interesting wy are you running calibre on WSL when it has native windows binaries witht he same functionality?

ratinox · 09-17-2022, 08:53 AM

Because I'm a Unix person. I do nearly all my command line stuff in bash.

While I could rewrite my wrapper scripts to invoke the Windows ebook-convert, it's really clunky making WSL run Windows native executables. Easier for me, and portable with native Linux which I also use, to just install it in WSL as well.

kovidgoyal · 09-17-2022, 11:11 AM

Well you will have ot wait for wither Qt, or microsoft or glibc to change and the change to make it into the calibre builds, in the meantime just patch the binaries.

ratinox · 09-18-2022, 11:12 AM

But the bug is the installer doesn't finish. It errors out because of the included library. I can't patch the installer because of the signature check; you are the only one who can do that.

kovidgoyal · 09-18-2022, 12:24 PM

The installer is a python script that unpacks a tarball, you can unpack it yourself and not run the installer at all. See the instructions on the linux download page.

ratinox · 09-18-2022, 03:11 PM

This does not fix the bug in your package. But since you're more interested in giving me a hard time over it instead of addressing this bug I guess I'm on my own and maybe won't be using Calibre much longer.

HAND.

DNSB · 09-18-2022, 04:51 PM

Quote:

Originally Posted by ratinox

This does not fix the bug in your package. But since you're more interested in giving me a hard time over it instead of addressing this bug.

Given that this "bug" does not seem to be an issue under the versions of Linux that I've tested, Windows or MacOS, your logic in claiming that an issue that on your system happens under Windows running Windows Subsystem for Linux is a bug in calibre is a trifle hard to follow.

ratinox · 09-18-2022, 06:13 PM

Quote:

Originally Posted by DNSB

Given that this "bug" does not seem to be an issue under the versions of Linux that I've tested, Windows or MacOS, your logic in claiming that an issue that on your system happens under Windows running Windows Subsystem for Linux is a bug in calibre is a trifle hard to follow.

Why this is not a WSL bug: Further reading has shown me that buggy .note.ABI-tags is not a common problem but the bug affects any Linux system that does not like the tag in a given library, not just WSL.

Why this is a Calibre bug: This buggy library, libQt6Core.so.6, is distributed with Calibre and blocks installation and running of Calibre on any Linux system affected by this bug. Therefore it is a bug in Calibre.

Note: none of the other libraries distributed with Calibre have this bug. Only libQt6Core.so.6.

PeterT · 09-18-2022, 08:27 PM

I'm curious if the same issue exists with WSL 2

Sent from my Pixel 4a using Tapatalk

kovidgoyal · 09-18-2022, 09:55 PM

Quote:

Originally Posted by ratinox

This does not fix the bug in your package. But since you're more interested in giving me a hard time over it instead of addressing this bug I guess I'm on my own and maybe won't be using Calibre much longer.

HAND.

Oh the horror!! You wont use calibre much longer, whatever will I do without you.

ratinox · 09-19-2022, 11:01 AM

Quote:

Originally Posted by PeterT

I'm curious if the same issue exists with WSL 2

Sent from my Pixel 4a using Tapatalk

Probably not given the different architecture.

ratinox · 09-19-2022, 11:02 AM

Quote:

Originally Posted by kovidgoyal

Oh the horror!! You wont use calibre much longer, whatever will I do without you.

Just keep treating users like this and you'll find out.

theducks · 09-19-2022, 11:15 AM

Quote:

Originally Posted by ratinox

Just keep treating users like this and you'll find out.

Do you have any clue on how many ACTIVE users Calibre has?

Quote:

Active installs: 3,049,074 (those that have started calibre at least once in the last 60 days)

Your attitude ABOUT A FAIRLY UNUSUAL usage, says NO.

kovidgoyal · 09-19-2022, 12:06 PM

Quote:

Originally Posted by ratinox

Just keep treating users like this and you'll find out.

Shudder. I am dying of trepidation. Please sir, spare me your wrath.

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09-16-2022, 10:39 PM	#2
kovidgoyal creator of calibre Posts: 43,951 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Interesting wy are you running calibre on WSL when it has native windows binaries witht he same functionality?

09-17-2022, 08:53 AM	#3
ratinox Fanatic Posts: 531 Karma: 5060708 Join Date: Oct 2016 Device: Forma, iPad Air 4	Because I'm a Unix person. I do nearly all my command line stuff in bash. While I could rewrite my wrapper scripts to invoke the Windows ebook-convert, it's really clunky making WSL run Windows native executables. Easier for me, and portable with native Linux which I also use, to just install it in WSL as well.

09-17-2022, 11:11 AM	#4
kovidgoyal creator of calibre Posts: 43,951 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Well you will have ot wait for wither Qt, or microsoft or glibc to change and the change to make it into the calibre builds, in the meantime just patch the binaries.

09-18-2022, 11:12 AM	#5
ratinox Fanatic Posts: 531 Karma: 5060708 Join Date: Oct 2016 Device: Forma, iPad Air 4	But the bug is the installer doesn't finish. It errors out because of the included library. I can't patch the installer because of the signature check; you are the only one who can do that.

09-18-2022, 12:24 PM	#6
kovidgoyal creator of calibre Posts: 43,951 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The installer is a python script that unpacks a tarball, you can unpack it yourself and not run the installer at all. See the instructions on the linux download page.

09-18-2022, 03:11 PM	#7
ratinox Fanatic Posts: 531 Karma: 5060708 Join Date: Oct 2016 Device: Forma, iPad Air 4	This does not fix the bug in your package. But since you're more interested in giving me a hard time over it instead of addressing this bug I guess I'm on my own and maybe won't be using Calibre much longer. HAND.

09-18-2022, 08:27 PM	#10
PeterT Grand Sorcerer Posts: 12,228 Karma: 74000000 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	I'm curious if the same issue exists with WSL 2 Sent from my Pixel 4a using Tapatalk

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