Debian 8 offers, due to its freeze, only Calibre 2.50.
Debian Calibre Package Tracking
I'll give it a try with a old version on my local system.
Edit: I run into the same problem with Client 2.50 on my local file-system. I stopped calibre-server on the remote machine and tried to connect via Samba. Error is a read-only database.
Code:
Traceback (most recent call last):
File "site-packages\calibre\gui2\ui.py", line 637, in library_moved
File "site-packages\calibre\db\legacy.py", line 73, in __init__
File "site-packages\calibre\db\legacy.py", line 46, in create_backend
File "site-packages\calibre\db\backend.py", line 363, in __init__
File "site-packages\calibre\db\schema_upgrades.py", line 18, in __init__
File "site-packages\calibre\db\backend.py", line 808, in execute
File "c:\cygwin64\home\kovid\sw\build\apsw-3.8.2-r1\src\cursor.c", line 231, in resetcursor
ReadOnlyError: ReadOnlyError: attempt to write a readonly database