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Problem with external NFS on OpenMediaVault

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  • G
    giolnl @ch3i
    last edited by Sep 29, 2015, 9:31 AM

    @ch3i
    my export file on the FOG server looks like yours, some things I already tried:

    • set the same options i found in the FOG server’s export to the OMV’s export and change/mess a bit with them
    • use two separate exports for images and images/dev (always in OMV) with the exact options found in FOG (so something almost identical to the setup of the FOG server)

    The storage configuration is the same i posted before: screenshot, where 10.21.100.29 is the OMV server

    W 1 Reply Last reply Sep 29, 2015, 12:28 PM Reply Quote 0
    • W
      Wayne Workman @giolnl
      last edited by Sep 29, 2015, 12:28 PM

      @giolnl said:

      the FOG server looks like yours, some things I already tried:

      You need an NFS Export for both the /images directory and the /images/dev directories - wherever those may be. For troubleshooting purposes, set world-writable permissions (777) on the /images directory just to see it get going without unnecessary complications.

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
      Daily Clean Installation Results:
      https://fogtesting.fogproject.us/
      FOG Reporting:
      https://fog-external-reporting-results.fogproject.us/

      1 Reply Last reply Reply Quote 0
      • S
        Sebastian Roth Moderator
        last edited by Sep 29, 2015, 9:24 PM

        @giolnl I guess your /etc/exports on OMV should look like this:

        /export/backup 10.21.0.0/16(rw,subtree_check,secure)
        /export/images (rw,subtree_check,secure)
        /export/images/dev (rw,subtree_check,secure)
        
        # NFSv4 - pseudo filesystem root
        /export 10.21.0.0/16(ro,fsid=0,root_squash,no_subtree_check,hide)
        /export (ro,fsid=0,root_squash,no_subtree_check,hide)
        
        

        Maybe even add the NFS parameters originally used by FOG (see ch3i’s post).

        Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

        Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

        W G 2 Replies Last reply Sep 29, 2015, 10:27 PM Reply Quote 1
        • W
          Wayne Workman @Sebastian Roth
          last edited by Sep 29, 2015, 10:27 PM

          @Uncle-Frank I’d highly recommend that.

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
          Daily Clean Installation Results:
          https://fogtesting.fogproject.us/
          FOG Reporting:
          https://fog-external-reporting-results.fogproject.us/

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          • G
            giolnl @Sebastian Roth
            last edited by giolnl Sep 30, 2015, 4:26 AM Sep 30, 2015, 10:01 AM

            @Uncle-Frank
            I’ve just tested it with no success

            EDIT: I noticed a new thing, all the other tests I’ve done I’ve always set the task from the web GUI and then start the client with PXE, this time I just started the client without any task pending and then tried to do a quick image and now I can see this error in the Image list in the GUI under “image size: ON SERVER”, don’t know if it can be usefull or not:

            FOGFTP: Failed to connect. Host: 10.21.100.29, Error: Undefined property: FOGFTP::$link
            

            END EDIT

            /etc/exports on OMV:

            # /etc/exports: the access control list for filesystems which may be exported
            #               to NFS clients.  See exports(5).
            /export/backup 10.21.0.0/16(rw,subtree_check,secure)
            /export/images (rw,subtree_check,secure)
            /export/dev (rw,subtree_check,secure)
            
            # NFSv4 - pseudo filesystem root
            /export 10.21.0.0/16(ro,fsid=0,root_squash,no_subtree_check,hide)
            /export (ro,fsid=0,root_squash,no_subtree_check,hide)
            

            Same errors:

            Sep 30 05:48:43 omv rpc.mountd[18040]: refused mount request from 10.21.1.20 for /images/ (/): not exported
            

            and permission denied on the client

            root@omv:~# ll -aR /export/images/
            /export/images/:
            total 12
            drwxrwxrwx+ 3 root   users   32 Jul 30 17:10 .
            drwxr-xr-x  5 root   root  4096 Sep 30 08:35 ..
            -rwxrwxrwx+ 1 nobody users    0 Jul 30 17:10 .mntcheck
            drwxrwsrwx+ 2 nobody users   22 Jul 30 17:10 dev
            
            /export/images/dev:
            total 8
            drwxrwsrwx+ 2 nobody users 22 Jul 30 17:10 .
            drwxrwxrwx+ 3 root   users 32 Jul 30 17:10 ..
            -rwxrwxrwx+ 1 nobody users  0 Jul 30 17:10 .mntcheck
            
            W 1 Reply Last reply Sep 30, 2015, 5:08 PM Reply Quote 0
            • S
              Sebastian Roth Moderator
              last edited by Sep 30, 2015, 4:05 PM

              /export/images/dev not /export/dev I reckon

              Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

              Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

              G 1 Reply Last reply Oct 6, 2015, 1:59 PM Reply Quote 1
              • W
                Wayne Workman @giolnl
                last edited by Sep 30, 2015, 5:08 PM

                # /export/backup 10.21.0.0/16(rw,subtree_check,secure)
                #Commented out the above line just for troubleshooting purposes.
                /export/images *(ro,sync,no_wdelay,no_subtree_check,insecure_locks,no_root_squash,insecure,fsid=0)
                /export/images/dev *(rw,async,no_wdelay,no_subtree_check,no_root_squash,insecure,fsid=1)
                

                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                Daily Clean Installation Results:
                https://fogtesting.fogproject.us/
                FOG Reporting:
                https://fog-external-reporting-results.fogproject.us/

                1 Reply Last reply Reply Quote 0
                • G
                  giolnl @Sebastian Roth
                  last edited by giolnl Oct 6, 2015, 8:00 AM Oct 6, 2015, 1:59 PM

                  @Uncle-Frank
                  The fact is that OMV doesn’t le me export “directly” a subdirectory, it let me create a shared folder which point to /export/images/dev/ but then it exports it as /export/dev/ which is linked somehow to /export/images/dev/ (I don’t know how to be honest),
                  Anyway I made some tests with a “forced” configuration (meaning I actually bypassed the GUI of OMV) and everything worked, so the problem is in the OMV configuration, I’m still doing some tests but i think the problem is related to some ACL you can set on those shared folders and theirs subdirectories.

                  I’ll be back when I’ll be sure to have a working “minimal” configuraton for both FOG and OMV.

                  Thanks anyone for pointing me to the right direction!

                  W 1 Reply Last reply Oct 6, 2015, 4:20 PM Reply Quote 0
                  • G
                    giolnl
                    last edited by giolnl Oct 6, 2015, 8:43 AM Oct 6, 2015, 2:41 PM

                    Guess I was wrong about the ACL, in the end what made the difference was the fact that during the “forced” tests I used “/export/images” as image path in the storage configuration instead of “/images” (because of the missing “/export” lines in /etc/exports)

                    Here some screenshots with the working configuration I’m actually using:

                    OMV Shared folder configuration
                    OMV_shared_folder.png
                    OMV Shared folder ACL configuration
                    OMV_shared_folder_ACL.png
                    OMV NFS shares
                    OMV_NFS_share.png
                    FOG Storage configuration
                    FOG_storage_configuration.png

                    The actual /etc/exports file on OMV:

                    # /etc/exports: the access control list for filesystems which may be exported
                    #               to NFS clients.  See exports(5).
                    /export/images (rw,subtree_check,secure)
                    /export/backup (rw,subtree_check,secure)
                    
                    # NFSv4 - pseudo filesystem root
                    /export (ro,fsid=0,root_squash,no_subtree_check,hide)
                    

                    Could be that NSFv4 pseudo fs to cause the problem? Maybe by giving FOG the full path I somehow bypass it, just a random guess tho, I don’t know how NFS works apart from the basics.

                    1 Reply Last reply Reply Quote 0
                    • S
                      Sebastian Roth Moderator
                      last edited by Oct 6, 2015, 2:46 PM

                      With /export/images/dev missing in /etc/exports is it working now??

                      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                      G 1 Reply Last reply Oct 6, 2015, 2:53 PM Reply Quote 0
                      • G
                        giolnl @Sebastian Roth
                        last edited by Oct 6, 2015, 2:53 PM

                        @Uncle-Frank
                        yes, I already noticed that during the previous tests I’ve made, I was always able to mount /export/images/dev like if it was an export even if it wasn’t configured as one in the OMV server. I guessed it somehow inherited the possibility to be exported by its parents directories, but as I said I’m far from being an expert about NFS.

                        1 Reply Last reply Reply Quote 0
                        • S
                          Sebastian Roth Moderator
                          last edited by Oct 6, 2015, 3:08 PM

                          Should we mark this solved or is it still an issue for you?

                          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

                          1 Reply Last reply Reply Quote 0
                          • G
                            giolnl
                            last edited by Oct 6, 2015, 3:16 PM

                            I got it working so for me it could be marked as solved, thanks!

                            1 Reply Last reply Reply Quote 0
                            • W
                              Wayne Workman @giolnl
                              last edited by Oct 6, 2015, 4:20 PM

                              @giolnl said:

                              I made some tests with a “forced” configuration (meaning I actually bypassed the GUI of OMV) and everything worked

                              Not forced, simply a manual configuration. 🙂

                              The OS doesn’t care what the GUI says. The OS is going to read the /etc/exports file for exports, that’s how it works. 🙂

                              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                              Daily Clean Installation Results:
                              https://fogtesting.fogproject.us/
                              FOG Reporting:
                              https://fog-external-reporting-results.fogproject.us/

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