I'm migrating from a Windows Server to Unraid, and copying data.

I use BeyondCompare to sync data to external USB drives on the Windows server. This works as expected and all files are synchronized.

 

As I change the sync target to my Unraid system, I'm finding many files fail to copy or sync. A few examples:

 

4/20/2025 4:05:35 PM  Unable to copy I:\Sun-E\___snip___\._S03-ADCL-C-0003!!PDF-E.pdf: The system cannot find the file specified

 

4/18/2025 5:26:26 AM  Unable to copy D:\___snip___\._DESTINATION_ON_RIGHT.mp3: The system cannot find the file specified

 

I know Linux hides filenames starting with ".", so so maybe the sharing "hiding" these files as BeyondCompare verifies they have been copied. Under Settings / SMB, I checked the Hide "dot" files setting, and it is set to "No"

What other settings are needed to provide full transparency of filenames with Windows and Linux clients?

 

Not an answer to your question, but those dot files look like the sort that are created by MacOS systems?

The source files are mixed origin - some came from Windows and some came from Android.  There is a possibility they are part of distributions that were made for Mac and Windows. Regardless, these files have been successfully stored on and copied between Windows drives, and hopefully Unraid can also support the Windows file namespace.

I have no issue syncing files with the names from your example form Windows to Unraid with SyncBackFree, suggesting Unraid is not the issue:

 

I don't think it is the sync software. I have the same behavior from a Windows command prompt:

 

I:\Sun-E\Standards Archive\802.11\2003\2003-11 Plenary\Motions\Carl Stevenson>copy "._S03-ADCL-C-0003!!PDF-E.pdf" "\\T440\e-i-root\Sun-E\Standards Archive\802.11\2003\2003-11 Plena
ry\Motions\Carl Stevenson"
The system cannot find the file specified.
        0 file(s) copied.

I:\Sun-E\Standards Archive\802.11\2003\2003-11 Plenary\Motions\Carl Stevenson>copy "._S03-ADCL-C-0003!!PDF-E.pdf" c:\temp
Overwrite c:\temp\._S03-ADCL-C-0003!!PDF-E.pdf? (Yes/No/All): y
        1 file(s) copied.

I:\Sun-E\Standards Archive\802.11\2003\2003-11 Plenary\Motions\Carl Stevenson>copy "._S03-ADCL-C-0003!!PDF-E.pdf" "\\MARS\D-Drive\Temp"
Overwrite \\MARS\D-Drive\Temp\._S03-ADCL-C-0003!!PDF-E.pdf? (Yes/No/All): y
        1 file(s) copied.

I:\Sun-E\Standards Archive\802.11\2003\2003-11 Plenary\Motions\Carl Stevenson>

I cannot copy the file to Unraid (T440).  (file not found)

I can copy the file to another local drive.  (C:)

I can copy the file to another Windows share (\\MARS)

I will try to get a Linux system up with an SMB share to test it on.
I'm new to Unraid and have probably missed a configuration item.

 

Do you have any custom settings on Samba extras? These were the SMB settings I used, share was a public share:

 

 

 

My SMB settings are just like yours except Macos Interoperability is Yes.  That must be a new default, because I didn't change it. I do not have any MacOs on my network.  I'll try changing it to No and see if it solves the issue.

 

Edit - I checked it right after restarting the array after making the change of "Macos Interoperability" to No.

It still failed.
I tried again a couple of hours later, and now it works. I am able to copy files starting with "_." to the Unraid share.

 

Edited April 22, 20251 yr by timg11