Error 100093 on macOS 15 RC - when copy files to NFS mounted disk

Hey everyone!

Everything was working fine when I was using NFS to mount a remote drive on macOS 14. But today, after upgrading to the macOS 15 RC version, I started getting a 100093 error when transferring files via NFS.

I've looked up quite a few solutions online and tried the following on my Mac (NFS mount point is /tmp/mmm/). I found that transferring files only works when they're placed inside a folder, or when using the cp command in the terminal to copy files.

Here's the detailed situation:

  • Dragging and dropping or copying any file to the NFS mount directory via Finder only creates the file, but it's empty and shows a 100093 error.

  • Using the cp command to copy the same file to the NFS mount directory works fine in terms of writing the file content, but still shows an error about failing to write extended attributes. (just renamed the 33.png to 2.png)

  • However, if I put the files into a folder and then copy that folder via Finder or terminal to the NFS mount directory, everything works normally.

Any ideas on how to solve this? Could it be a bug related to the macOS 15 RC system upgrade, or is it something to do with the NFS itself?

Thanks in advance for any help!

Any idea?

Grant Bennet-Alder User level:Level 10 131,983 points Feb 19, 2024 7:42 AM in response to johnkl

Some additional searching around this error yielded additional insights.

It appears the default confguration of the WD Server does not support everything Apple devices need to be successful. you may have to modify the configuration of the NAS server software.

According to https://krypted.com/lists/comprehensive-list-of-mac-os-x-error-codes/ , 100093 is "kPOSIXErrorENOATTR" ("Attribute not found"). It looks like there's special support for Apple SMB clients in Samba.

from:

https://www.reddit.com/r/ios/comments/q02ss3/files_app_osstatus_error_100093/?rdt=55815

https://discussions.apple.com/thread/255480414?sortBy=oldest_first

Error 100093 on macOS 15 RC - when copy files to NFS mounted disk
 
 
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