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Time Machine SMB Auth Error

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Trying to set up Time Machine for the first time and unable to get past he following error:

unraid_timemachine.png

Details:

Unraid - 7.3.1

MacOS Sequoia 15.7.7

I create a share named "timemachine" with the following config:

image.png

image.png

Create a user named tm_user which has read/write permissions to the share.

General SMB settings are:
image.png

SMB Extras are currently (but original there were none when I first saw this error):

image.png

I mount the Time Machine share, either directly with the machine ip or with the following and enter the user and password that I created in unraid (tm_user), I can use finder to go onto the share and create a dir but I always see an error when Time Machine tries to backup.

image.png

I tried setting the share up as public and it seemed to work and start creating a backup but Id prefer the share to be private and believe this should be possible?

I leave the backup encryption off.

Username/pass look like they are stored in keychain ok

image.png

Any input on what to change or try next would be greatly appreciated!

Thank you!

Edited by mr21
Typo

  • Community Expert
14 hours ago, mr21 said:

Username/pass look like they are stored in keychain ok

image.png

What are these two passwords for? You should only use one password for your apple client computer to log into your Unraid server for file access (SMB). (I probably should avoid answering your query as I have zero experience with the Apple environment...)

  • Author

Thanks for the reply.

These are just auto added as far as I can tell. I think they are added when I try and access the share through finder.

They both have the username tm_user and password I set up so shouldn't cause any auth issue no matter which is used.

  • Author

Same error when using the docker container - mbentley/docker-timemachine.

At a loss as to where to go from here, can anyone suggest what to check?

I'm running unraid on proxmox but don't believe that should make a difference here?

  • Community Expert

You didn't set a cap. Wouldn't be surprising having that left empty would prevent it from working.

image.png

Usually when there's a setting field you need to define it.

Edited by Kilrah

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