Issue w Mac Calibre w library on external usb

[just_jeepin]

I am using Mac Calibre and ever since I moved my library to an external hard drive I'm having two issues:

1. When I edit an epub's metadata and click save I get the following error: FileNotFoundError:[Errno 2] No such file or directory: '._Book Title'. If I click ok it still saves. Here's the show details data:

calibre, version 6.14.1
ERROR: Unhandled exception: <b>FileNotFoundError</b>:[Errno 2] No such file or directory: '._Book Title.epub'

calibre 6.14.1 embedded-python: True
macOS-13.2-arm64-arm-64bit Darwin ('64bit', '')
('Darwin', '22.3.0', 'Darwin Kernel Version 22.3.0: Thu Jan 5 20:49:43 PST 2023; root:xnu-8792.81.2~2/RELEASE_ARM64_T8103')
Python 3.10.1
OSX: ('13.2', ('', '', ''), 'arm64')
Interface language: None
Successfully initialized third party plugins: DeDRM (10, 0, 3)
Traceback (most recent call last):
File "calibre/db/backend.py", line 409, in rmtree_with_retry
File "shutil.py", line 717, in rmtree
File "shutil.py", line 674, in _rmtree_safe_fd
File "shutil.py", line 672, in _rmtree_safe_fd
FileNotFoundError: [Errno 2] No such file or directory: '._cover.jpg'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre/gui2/metadata/single.py", line 621, in accept
File "calibre/gui2/metadata/single.py", line 602, in apply_changes
File "calibre/gui2/metadata/basic_widgets.py", line 242, in commit
File "calibre/db/legacy.py", line 934, in func
File "calibre/db/cache.py", line 77, in call_func_with_lock
File "calibre/db/cache.py", line 1484, in set_field
File "calibre/db/cache.py", line 1497, in update_path
File "calibre/db/backend.py", line 1795, in update_path
File "calibre/db/backend.py", line 1334, in rmtree
File "calibre/db/backend.py", line 414, in rmtree_with_retry
File "shutil.py", line 717, in rmtree
File "shutil.py", line 674, in _rmtree_safe_fd
File "shutil.py", line 672, in _rmtree_safe_fd
FileNotFoundError: [Errno 2] No such file or directory: '._Book Title.epub'

2. If I change the title of the book, not only does the above error happen but it doesn't remove the old book folder and metadata.opf file.

Thanks for any help.

[kovidgoyal]

Put your calibre library on a native filesystem, either APFS or HFS+ and you will be fine.

[just_jeepin]

Thank you! It never dawned on me, I'm so used to using fat32 or exfat for compatibility.

[kovidgoyal]

Yeah I do the same, but in calibre's case it uses more "advanced" filesystem functionality that is often broken in non-native filesystem drivers.

[parsibawa]

Deleting a book (any format) within Calibre does not delete it from Calibre Library.