I just did…
Hence the name, the host machine’s log…
Alright. I found the logs. Turned out to be an issue with the NAS: I created a new user for the backup. I needed to manually log in as that user to change the password for the first time, to enable the account. After that, the Samba share started working.
@GSzabados I have some feedback for you: First of all, thanks for taking the time to help me. Your answers were generally correct. However, I felt the tone was a bit condescending at times. Please be aware that not everyone is very sharp in knowledge about the OS architecture under Home Assistant. To me, it’s always a bit confusing. It might seem straightforward if you’re working with it every day, but if that’s not the case, it can be a bit less straightforward than you think.
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However, I felt that you have not read what I wrote and you have not even tried to follow the most basic instructions that I gave. Both the error message and my instructions clearly indicated where you should look at.
If you feel that something is not documented well, then please feel free to document it, and you can help others.
And just for reference:
Great, so I did not only perceive it as condescending, it was really meant to be condescending. Thanks for letting me know. I feel a lot better now.
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Dude, why are you still always getting in arguments with people? Please take your time reading someone’s post before assuming they are being malicious. Gábor has been nothing but helpful to everyone on the forums for a number of years now. Keep in mind, not everyone is a native English speaker.
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Hey, I was just pointing out how I felt, only after saying thanks for the help anyway. I can’t help that people still feel offended.
The only one offended is you… Next time, just flag a post instead of providing “feedback”. Thank you.
Thanks for the “feedback”.
No problem, happy to help. 
I did all of this and got this error
Mounting NAS did not succeed. Check host logs for errors from mount or systemd unit mnt-data-supervisor-mounts-NAS.mount for details.
I have exactly that error too and I`ve tried every permutation
I was able to fix mine. So turns out since I have both ethernet ports connected I have 2 separate IP’s and I was using the wrong one.
I was using 192.168.0.5 and got the error, but then I tried the 192.168.2.139 and it connected. Hope this helps
Hi all! I’m also having problems, in this case, connecting to my Synology. The error message I finally get to is:
Logger: homeassistant.components.hassio
Source: components/hassio/websocket_api.py:135
integration: Home Assistant Supervisor (documentation, issues)
First occurred: 11:14:44 AM (6 occurrences)
Last logged: 11:54:06 AM
Failed to to call /mounts - Mounting NASBackup did not succeed. Check host logs for errors from mount or systemd unit mnt-data-supervisor-mounts-NASBackup.mount for details.
Failed to to call /mounts - does not match regular expression [1]+ for dictionary value @ data[‘share’]. Got ‘/volume1/HomeAssistantStorage’
Failed to to call /mounts - Mounting NASBackups did not succeed. Check host logs for errors from mount or systemd unit mnt-data-supervisor-mounts-NASBackups.mount for details.
This looks like it has to do with the format of the shared directory, and specifically the beginning of the directory path, but I’m not sure. I’ve tried starting with a slash, and no slash. HAOS is running on RPI, so not sure if I should be using slash or backslash either. I’ve also tried SMB and SNF (The two options in the Add Storage dialogue), neither with any success. I think I have SMB on the NAS set to beyond 2, have looked at pathnames, tried the Numaric URL and the shortcut or SMB name the NAS supplies, if that makes sence. I’m not quite sure what to try next. As you may notice, this is just a bit over my head. I had it working for backups before switching to a new SD-card, but I never could get any other storage set up, and now I can’t even get the backups going again. Fortunately I can still manually copy themn through Samba. Any help would be appreciated. I know there could be details you might still need, but hope this is at least a good starting place. Thanks very much.
^\/ ↩︎