Calibre server 3.0 - Cant read books on web reader

[eridani]

It complains about not finding ~/.cache/calibre/srvb/s/clNmkz/content.opf

This is the relevant log:

calibre server listening on 0.0.0.0:8080
OPDS feeds advertised via BonJour at: 192.168.1.65 port: 8080
calibre server listening on 0.0.0.0:8081
OPDS feeds advertised via BonJour at: 192.168.1.65 port: 8081
calibre server listening on 0.0.0.0:8081
OPDS feeds advertised via BonJour at: 192.168.1.65 port: 8081
The job: Render book 188 (EPUB) failed:

Traceback (most recent call last):
  File "site-packages/calibre/utils/ipc/simple_worker.py", line 286, in main
  File "site-packages/calibre/srv/render_book.py", line 511, in render
  File "site-packages/calibre/srv/render_book.py", line 178, in __init__
  File "site-packages/calibre/ebooks/oeb/polish/container.py", line 282, in __init__
InvalidBook: Could not locate opf file: u'/Volumes/Home/.cache/calibre/srvb/s/clNmkz/content.opf'

The job: Render book 80 (EPUB) failed:

Traceback (most recent call last):
  File "site-packages/calibre/utils/ipc/simple_worker.py", line 286, in main
  File "site-packages/calibre/srv/render_book.py", line 511, in render
  File "site-packages/calibre/srv/render_book.py", line 178, in __init__
  File "site-packages/calibre/ebooks/oeb/polish/container.py", line 282, in __init__
InvalidBook: Could not locate opf file: u'/Volumes/Home/.cache/calibre/srvb/s/HDZmQn/content.opf'

I must point that:

• I'm on Ubuntu 16.04 x86_64
• Changed default port to :8081
• ~/.cache is a symlink pointed to /Volumes/Home/.cache (That so far has been working flawlessly with the caches of every other program)
• ~/ is EXT4 and /Volumes/Home is a ZFS dataset.

[kovidgoyal]

So use a different cache directory, preferably not on ZFS. You can use the CALIBRE_CACHE_DIRECTORY env var to change it.

[eridani]

That did the trick, thank you.

Reported this behaviour as a bug, can be found at https://bugs.launchpad.net/calibre/+bug/1698441


For the time being, following your advice I created a .desktop file to launch Calibre at "~/.local/share/applications/calibre-gui.desktop" with the following contents:

[Desktop Entry]
Version=3.0
Type=Application
Name=calibre
GenericName=E-book library management
Comment=E-book library management: Convert, view, share, catalogue all your e-books
TryExec=calibre
Exec=env CALIBRE_CACHE_DIRECTORY='/home/YOURUSERNAME/ROUTETONEWCACHEFOLDER' calibre --detach %F
Icon=calibre-gui
Categories=Office;
MimeType=text/fb2+xml;application/x-cbz;application/vnd.openxmlformats-officedocument.wordprocessingml.document;text/html;application/x-mobipocket-ebook;application/ereader;application/x-mobipocket-subscription;application/x-mobi8-ebook;text/rtf;application/x-cbr;application/vnd.ms-word.document.macroenabled.12;application/xhtml+xml;application/x-sony-bbeb;application/oebps-package+xml;application/pdf;application/x-cbc;application/vnd.oasis.opendocument.text;text/plain;image/vnd.djvu;text/x-markdown;application/epub+zip;

After launching Calibre from this new .desktop file it will take precedence in Ubuntu's launcher over "/usr/share/applications/calibre-gui.desktop" and will be set automatically as the default launcher.