Post #1988308
2026-05-04 15:25 UTC
There has been a bug in MacOS that quietly corrupts data to a mounted SMB share for god knows how long.
I've been having this issue where if you create a file and copy it right away to an SMB share, its size is correct but it's all zeros >80% of the time.
Just found out it bit me in the ass again, having corrupted almost all of the 5000 YouTube videos I've been downloading for years through yt-dlp. After the ffmpeg step it copies it over to my SMB share and almost all files are just zeros and have been for years 😭
Replies (3)
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@Purple@woof.tech 2026-05-04 15:26
I literally don't know how to fix this other than having the file be stored on a local drive and me occasionally bumping them over to my NAS through Finder Not looking forward to having to redownload all these files, I hope most of the videos still exist 😅
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@kirakira@furry.engineer 2026-05-04 15:32
@Purple@woof.tech holy shit, I knew macos smb was bad but I didn't know it was this bad
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@MrDOS@hachyderm.io 2026-05-04 15:34
@Purple@woof.tech Awful. Can you use NFS instead? I recently installed Netatalk on my NAS and switched from SMB back to AFP. But that's not a long-term solution, because macOS 27 is poised to drop AFP support.