Can't select File System for remote mount.

Xelis · 8. April 2023

Let me preface this with I'm really new to this and know virtually nothing.

I have a Pi 4 which I have installed OMV6 on, I am attempting to mount and share a few external hard drives attached to an Nvidia Shield Pro that I'm using for Plex. I 've installed Remotemount 6.1 and got the drives created and it says it's mounted (they appear as cifs type, unsure if that's relevant to my issue). The dashboard File Systems tab shows the drive with the correct data stats so I know I have the details correct.

The problem starts when I go into Shared Folders and attempt to create one, 500 - Internal Server Error pops up and when I try to select a File System the drop down doesn't work and I get a error message.

Code

OMV\Rpc\Exception: Invalid RPC response. Please check the syslog for more information. in /usr/share/php/openmediavault/rpc/rpc.inc:187
Stack trace:
#0 /usr/share/php/openmediavault/rpc/proxy/json.inc(97): OMV\Rpc\Rpc::call()
#1 /var/www/openmediavault/rpc.php(45): OMV\Rpc\Proxy\Json->handle()
#2 {main}

Any help would be greatly appreciated.

chente · 8. April 2023

I guess if you see the drives mounted in the file system you have done the right mounting from remote-mount. CIFS means that the drives are shared from the Nvidia Shield using samba.

So I'd say it's a permissions issue. The username and password you used to mount the drives in OMV probably only have read permission, so you can't create folders.

One note, to create a folder on a drive mounted this way use the path / simply.

ryecoaaron · 8. April 2023

Zitat von Xelis

The problem starts when I go into Shared Folders and attempt to create one, 500 - Internal Server Error pops up and when I try to select a File System the drop down doesn't work and I get a error message.

The connecting user you specified in the remotemount must not be able to create a folder on the remote share. You could just use / for the relative path. Then there is no folder to create. Or you could use an existing folder but it might still try to change permissions.

Xelis · 8. April 2023

I just remembered the Nvidia Shield only has write access to a folder within the drive called NVIDIA_SHIELD and can't be changed. I just appended the share with /NVIDIA_SHIELD but that gives me the same problem. I feel like this is the issue but I don't know how to resolve it.

chente · 8. April 2023

Did you try defining the relative path as / ?

Xelis · 8. April 2023

I would but the issue is I can't select any File System while I have a remote mount created, nothing shows up. I clicked on it and it just stays like this. But once I delete the remote mount, unmounting doesn't work, I can get the drop down to show drives attached to the Pi again.

chente · 8. April 2023

mmm... I don't quite understand what is happening to you. Take a look here, maybe it will help. [How-to] Use the openmediavault-remotemount plugin

It doesn't make sense that you can't select a file system to mount the remote folder. Or is it that you don't have file systems created on the NAS?

Xelis · 8. April 2023

Through googling this issue, I've come across that post and followed the steps but that still ended with this issue. I've seen a post on Reddit A SOLUTION FOR: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export : OpenMediaVault (reddit.com) suggesting it's a duplicate drive id problem, as I had an issue with having a space in the shared folder name which I had to add underscores to before attempting to create the Remote Mounts again.

I did have a long error starting with "Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export" when all 3 drive were mounted but that went when I decided to delete them all and just get one working first.

The dupe id fix was a series of CLI which I'm quite uncomfortable using so I rather make sure I'm not making a simple mistake before doing something potentially destructive.

Another suggestion was using fstab to mount it but I have no idea.

chente · 8. April 2023

Before removing the remote mounts did you remove the references in the file system? That would explain it.

Xelis · 8. April 2023

As far as I know I never got to create references, unless they are created while mounting the drive. How do I find out whats referenced and remove it?

UPDATE:

I removed all the Remote Mounts then checked for any ghost drives in the terminal, nothing. Just my OS and drive plugged into my Pi.

I have noticed Storage>File Systems becomes blank when I have the Nvidia Shield's drive Remote Mounted, once I remove it the drive plugged into my Pi shows back up.

The internal drive of the Shield is causing the same problem and that definitely hasn't a dupe id (haven't mounted it before) or name space issue, so I can rule that out now.

I thought it could be an NTFS issue, but the drive in my Pi is NTFS too.

I'm becoming increasingly stumped.

Xelis · 9. April 2023

Another update, I mounted the Remote Drive, the web UI says it's mounted but going into the terminal to look for it with;

sudo blkid

and

cd /

cd srv

ls

shows it's not there, just the drive attached to my Pi.

But if I do sudo omv-showkey mntent

Code

<mntent>
<uuid>c7e0d3f2-66fd-44e1-a32c-3c08cbfe2eb7</uuid>
<fsname>/dev/disk/by-uuid/082CE14F2CE13878</fsname>
<dir>/srv/dev-disk-by-uuid-082CE14F2CE13878</dir>
<type>ntfs</type>
<opts>defaults,nofail,big_writes</opts>
<freq>0</freq>
<passno>2</passno>
<hidden>0</hidden>
<usagewarnthreshold>95</usagewarnthreshold>
<comment>Torrents</comment>
</mntent>
<mntent>
<uuid>3036b70e-0ac5-4572-9137-3e844560a42d</uuid>
<fsname>04fdf908-56fa-4aeb-83b2-9e38b9c9111c</fsname>
<dir>/srv/remotemount/Movies</dir>
<type>cifs</type>
<opts></opts>
<freq>0</freq>
<passno>0</passno>
<hidden>1</hidden>
<usagewarnthreshold>0</usagewarnthreshold>
<comment></comment>
</mntent>

Alles anzeigen

It's there (the bottom one), but looks completely different to the one above, that works fine. Maybe this could be causing problems?

Finally I checked sudo nano /etc/monit/conf.d/openmediavault-filesystem.conf and again it's not there.

Hopefully this provides enough information that someone knows what's going on.

vampirakos · 10. April 2023

Hello, i'm facing the same problem here.

Fresh install OMV, i mounted 3 external drives and then i mounted via remote-mount a remote drive, after i mounted the remote drive in Storage > File Systems, there is nothing, also if i try to mount a drive again, nothing showing at Select file system only a pop up 500 - Internal Server Error. When i remove remote-mounted drive, then all are back to normal (in Storage > File Systems, showing 3 mounted file systems i had already mounted after instal.

eljuli · 10. April 2023

Hello, I have exactly the same problem described here.

chente · 10. April 2023

Zitat von vampirakos

Hello, i'm facing the same problem here.

Zitat von eljuli

Hello, I have exactly the same problem described here.

After configuring remote mount it is necessary to restart the server. Are you doing it?

eljuli · 10. April 2023

Yes, restarting both the server and Windows Share, nothing changed, it struck me that my file system disappeared even before applying the changes.

I fill in all the data, and when I press save it already disappears even before applying the changes.

when i delete my remote share it reappears the file system correctly.

I would like to comment that although my file system is not present, my OMV server works correctly, my network folders are visible and my applications continue to work.

Sorry for my bad English, I hope you understand me.

Thanks in advance, any help will be appreciated.

chente · 10. April 2023

ryecoaaron

There is something probably not working right here. I just tried this on a vm and the same thing happened to me. I guess you can reproduce it yourself. I just created a remote mount to a shared folder with CIFS and the file system disappeared in the GUI.

If you need records let me know.

chente · 10. April 2023

This vm has these plugins installed, in case it helps

Code

root@omv-pruebas:~# dpkg -l | grep openme
ii  openmediavault                  6.3.7-5                        all          openmediavault - The open network attached st                                                                orage solution
ii  openmediavault-backup           6.1                            all          backup plugin for OpenMediaVault.
ii  openmediavault-kernel           6.4.7                          all          kernel package
ii  openmediavault-keyring          1.0                            all          GnuPG archive keys of the OpenMediaVault arch                                                                ive
ii  openmediavault-omvextrasorg     6.1.1                          all          OMV-Extras.org Package Repositories for OpenM                                                                ediaVault
ii  openmediavault-remotemount      6.1                            all          Remote mount plugin for OpenMediaVault.
ii  openmediavault-resetperms       6.0.2                          all          Reset Permissions
ii  openmediavault-sharerootfs      6.0.2-1                        all          openmediavault share root filesystem plugin
ii  openmediavault-symlinks         6.0.4                          all          OpenMediaVault symlinks plugin
ii  openmediavault-wetty            6.0.4-1                        all          openmediavault WeTTY (Web + TTY) plugin
ii  openmediavault-wireguard        6.2.1                          all          openmediavault WireGuard plugin
ii  openmediavault-zfs              6.0.12                         amd64        OpenMediaVault plugin for ZFS

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ryecoaaron · 10. April 2023

The form is supposed to change what is visible and mount options based on mount type. Neither is happening. Something must have changed in OMV. I will have to look. This is most likely causing the plugin's backend to use the wrong fields.

chente · 10. April 2023

Zitat von ryecoaaron

the plugin's backend to use the wrong fields.

Code

      <mntent>
        <uuid>67f5d55c-50ca-4e83-a9e0-011c1b8cd4ae</uuid>
        <fsname>137c6db6-228f-45bd-9de9-a6a00d491587</fsname>
        <dir>/srv/remotemount/multimedia_desvan</dir>
        <type>cifs</type>
        <opts></opts>
        <freq>0</freq>
        <passno>0</passno>
        <hidden>1</hidden>
        <usagewarnthreshold>0</usagewarnthreshold>
        <comment></comment>
      </mntent>

Alles anzeigen

In <dir> the UUID should appear, I think.

ryecoaaron · 10. April 2023

Zitat von chente

In <dir> the UUID should appear, I think.

The backend isn't the problem. The frontend is not working correctly.

When you select the mount type, the form should dynamically change. If it does not, there are values passed incorrectly to the backend making it do things it shouldn't.

uuid is not used anymore for mountpoints. I moved it to a similar model that the mergerfs plugin is using.

Can't select File System for remote mount.

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