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[SOLVED] Fatal Error: Failed to mount NFS Volume

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  • Q
    Quazz Moderator @arnaudrigole
    last edited by Quazz Mar 14, 2016, 2:03 AM Mar 14, 2016, 8:00 AM

    @arnaudrigole You can’t reexport a directory you’ve mounted with NFS. You need to mount it directly.

    A 1 Reply Last reply Mar 14, 2016, 8:13 AM Reply Quote 0
    • A
      arnaudrigole @Quazz
      last edited by Mar 14, 2016, 8:13 AM

      @Quazz

      Thanks for your help. So, on fog storage node, instead of setup the “/srv/cifs/SRVADM/images” directory, mounted on a distant server; i setup directly the distant server with shared storage, with contoso credentials?

      @ch3i
      Désolé mais ça me paraît un peu compliqué, je connais pas vraiment la différence entre les deux. Je pensais que le cifs était utilisé pour monter des partage windows

      Q 1 Reply Last reply Mar 14, 2016, 8:57 AM Reply Quote 0
      • Q
        Quazz Moderator @arnaudrigole
        last edited by Mar 14, 2016, 8:57 AM

        @arnaudrigole If NFS is enabled on that server for those directories then yes. If not, you’ll need to set that up.

        A 1 Reply Last reply Mar 14, 2016, 9:01 AM Reply Quote 0
        • A
          arnaudrigole @Quazz
          last edited by Mar 14, 2016, 9:01 AM

          @Quazz
          But its not what i want to … FOG can’t write on a local directory and i dont understand why … i defined the storage node on /srv/cifs/SRVADM/image which is a directory on FOG server, BUT, i did a “mount -t cifs” on SRVADM distant server which looks OK.
          for example, on fog server i create a test.txt file on this /images folder, and i see it on my windows server SRVADM, in D:/DATA_FOG/Images 's shared folder…

          Q 1 Reply Last reply Mar 14, 2016, 9:03 AM Reply Quote 0
          • Q
            Quazz Moderator @arnaudrigole
            last edited by Quazz Mar 14, 2016, 3:03 AM Mar 14, 2016, 9:03 AM

            @arnaudrigole FOG needs NFS access, it won’t use CIFS/SAMBA. I believe there is a tutorial on how to switch over to CIFS/SAMBA but it’s not officially supported.

            https://forums.fogproject.org/topic/5145/script-to-install-samba-with-settings-for-fog

            A 1 Reply Last reply Mar 14, 2016, 9:04 AM Reply Quote 0
            • A
              arnaudrigole @Quazz
              last edited by Mar 14, 2016, 9:04 AM

              @Quazz
              OK! But my data server SRVADM is a Windows Server 2008R2… i will look on it to enable NFS. Never did it before 🙂

              1 Reply Last reply Reply Quote 0
              • S
                Sebastian Roth Moderator
                last edited by Mar 14, 2016, 10:14 AM

                @arnaudrigole This might be helpful to you: https://wiki.fogproject.org/wiki/index.php/Windows_Storage_Node

                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 A 2 Replies Last reply Mar 14, 2016, 11:31 AM Reply Quote 0
                • G
                  george1421 Moderator @Sebastian Roth
                  last edited by Mar 14, 2016, 11:31 AM

                  @Sebastian-Roth While researching how to enable a Synology NAS for a storage node, it appears that current versions of FOG require a web server on the storage node too (as far as I can tell). While I haven’t had too much time to investigate, I’m thinking that it wants something in fog/services/ipxe folder

                  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!

                  1 Reply Last reply Reply Quote 0
                  • A
                    arnaudrigole @Sebastian Roth
                    last edited by Mar 14, 2016, 3:29 PM

                    @Sebastian-Roth
                    Thank you, i think too !
                    But the described procedure seems to be not secured! (grant RW access for “all”, “all machines”, “everyone” on shared folders…

                    the cryptowall “locky” ransomware that we had last week ravaged our datas and infected all folders which was shared with “everyone” rw right…

                    Q C 2 Replies Last reply Mar 14, 2016, 3:33 PM Reply Quote 0
                    • Q
                      Quazz Moderator @arnaudrigole
                      last edited by Mar 14, 2016, 3:33 PM

                      @arnaudrigole I’m guessing your CIFS/SAMBA shares are mounted as network drives on other computers, yes?

                      The NFS shares should only be mounted on computers that are going get their image captured or where an image will be deployed and only for the duration of those actions.

                      I’ve yet to see a virus sniff out possible NFS connections and then be able to somehow use the correct credentials to then infect the shares, but I guess I could be wrong 😉

                      A 1 Reply Last reply Mar 15, 2016, 7:21 AM Reply Quote 0
                      • A
                        arnaudrigole @Quazz
                        last edited by Mar 15, 2016, 7:21 AM

                        @Quazz
                        Hi!
                        Yeah thats it.
                        Ok, so its why when i type \SRVADM on a Windows computer i don’t see the NFS “FOG” directory i just shared ?

                        I’ll mount as described in the Sebastian’s procedure, and i’ll come back here so say whats up 🙂

                        Q 1 Reply Last reply Mar 15, 2016, 7:54 AM Reply Quote 0
                        • C
                          ch3i Moderator @arnaudrigole
                          last edited by Mar 15, 2016, 7:28 AM

                          @arnaudrigole said:

                          @Sebastian-Roth
                          Thank you, i think too !
                          But the described procedure seems to be not secured! (grant RW access for “all”, “all machines”, “everyone” on shared folders…

                          the cryptowall “locky” ransomware that we had last week ravaged our datas and infected all folders which was shared with “everyone” rw right…

                          Au besoin PM moi sur le forum, je pourrais surement te venir en aide.

                          1 Reply Last reply Reply Quote 1
                          • Q
                            Quazz Moderator @arnaudrigole
                            last edited by Mar 15, 2016, 7:54 AM

                            @arnaudrigole That and also because Windows doesn’t support NFS by default.

                            C 1 Reply Last reply Mar 15, 2016, 8:01 AM Reply Quote 0
                            • C
                              ch3i Moderator @Quazz
                              last edited by Mar 15, 2016, 8:01 AM

                              @Quazz said:

                              @arnaudrigole That and also because Windows doesn’t support NFS by default.

                              Windows support NFS… look at Server 2008/2012 (2008 > NFS V3 et 2012 > NFS V4.1)

                              Q 1 Reply Last reply Mar 15, 2016, 8:50 AM Reply Quote 0
                              • Q
                                Quazz Moderator @ch3i
                                last edited by Mar 15, 2016, 8:50 AM

                                @ch3i Server yes, clients not.

                                1 Reply Last reply Reply Quote 0
                                • A
                                  arnaudrigole
                                  last edited by Mar 15, 2016, 10:00 AM

                                  I’ve another problem…
                                  haven’t the time yet to mount my NFS storage so i keep using /images default directory of FOG; but when i try to download an image on a computer it said …

                                  **FATAL ERROR: Failed to mount NFS volume
                                  *if you believe the filesystem is mounted, make sure you have a file called .mntcheck in the directory you are mouting on the server.
                                  **

                                  i don’t see any “.mntcheck” file in /images and /images/dev…
                                  So i created it with “touch /images/.mntcheck” and “touch /images/dev/.mntcheck” but it still dont work… 😞
                                  Can’t deploy anything now …

                                  T 1 Reply Last reply Mar 15, 2016, 11:06 AM Reply Quote 0
                                  • T
                                    Tom Elliott @arnaudrigole
                                    last edited by Mar 15, 2016, 11:06 AM

                                    @arnaudrigole Did you edit the /etc/exports so it’s looking at the proper directory? If the CIFS share is still mounted on the server at /srv/cifs/SRVADM/images and your Exports file is still looking at /images and /images doesn’t exist on the FOG Server, it would still have a problem.

                                    If /srv/cifs/SRVADM/images is mounted to the folder /images AND, before the share is mounted, and you create the /images/.mntcheck /images/dev/.mntcheck files, then mount the samba over the TOP of the folder, the mounted folder needs these files so you’d have to run the same touch commands to ensure those files are present on the share as well.

                                    I think there’s almost too much going on to properly assist.

                                    What is going on? Are you still mounting the /srv/cifs/SRVADM/images folder?

                                    What’s in your /etc/exports file?

                                    What version are you running?

                                    Where are you defining the mount?

                                    I could also be chasing a rabbit down a hole as I’m still not sure you can NFS Export a CIFS Share either.

                                    If you’re that worried about security, why are you using a common system that OTHER users are accessing and writing data to as your mount point for where FOG stores its images?

                                    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! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                                    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

                                    A 1 Reply Last reply Mar 15, 2016, 1:20 PM Reply Quote 0
                                    • A
                                      arnaudrigole @Tom Elliott
                                      last edited by Mar 15, 2016, 1:20 PM

                                      @Tom-Elliott
                                      Thanks for your reply, mine are in your message below:

                                      Did you edit the /etc/exports so it’s looking at the proper directory? If the CIFS share is still mounted on the server at /srv/cifs/SRVADM/images and your Exports file is still looking at /images and /images doesn’t exist on the FOG Server, it would still have a problem. > As you said before, i re-edited it so its look like default now /images and /images/dev

                                      If /srv/cifs/SRVADM/images is mounted to the folder /images AND, before the share is mounted, and you create the /images/.mntcheck /images/dev/.mntcheck files, then mount the samba over the TOP of the folder, the mounted folder needs these files so you’d have to run the same touch commands to ensure those files are present on the share as well. > I’m afraid but i think i don’t understand… After i re-modified the /etc/exports file , i did touch commands on /images and /images/dev. I did not succeed the externalization of image storage, so i just want to go back on default configuration

                                      I think there’s almost too much going on to properly assist. > Yes

                                      What is going on? Are you still mounting the /srv/cifs/SRVADM/images folder? > it appears to be hard for me, i’m actually blocked by NFS and access rights… but i’ll continue to work on it but not now (FOG is currently used for production in my company)

                                      What’s in your /etc/exports file? >** /images (ro,sync,no…default string)
                                      /images/dev (rw,sync, … default string too)

                                      What version are you running? > Fog 1.2.0

                                      Where are you defining the mount? > When i did my tests for storage externalization, i wanna mount //SRVADM/FOG/Images (Windows 2008R2) on /srv/cifs/SRVADM/Images (Fog Server)

                                      I could also be chasing a rabbit down a hole as I’m still not sure you can NFS Export a CIFS Share either. > i think i don’t understand … but i recreated a shared directory by NFS services on my Win 2008R2, and when i try to mount it as : “mount -t nfs //SRVADM:FOG/Images /srv/cifs/SRVADM/images it return me :” mount.nfs : Failed to resolve server //SRVADM: name or service not known" , tried with IP -> same.

                                      If you’re that worried about security, why are you using a common system that OTHER users are accessing and writing data to as your mount point for where FOG stores its images? -> SRVADM is a server dedicated to IT service, we have no common data on it, but i told this only for crypto virus who infect “Everybody” shared directories

                                      Have a good sunny day 🙂

                                      Q 1 Reply Last reply Mar 15, 2016, 1:40 PM Reply Quote 0
                                      • Q
                                        Quazz Moderator @arnaudrigole
                                        last edited by Quazz Mar 15, 2016, 7:42 AM Mar 15, 2016, 1:40 PM

                                        @arnaudrigole " i think i don’t understand … but i recreated a shared directory by NFS services on my Win 2008R2, and when i try to mount it as : “mount -t nfs //SRVADM:FOG/Images /srv/cifs/SRVADM/images it return me :” mount.nfs : Failed to resolve server //SRVADM: name or service not known" , tried with IP -> same."

                                        Your syntax is incorrect, it should be something like mount -t nfs SRVADM(or ip):/FOG/Images destinationpathhere (eg mount/images after doing mkdir mount/images)

                                        // is only used for SAMBA/CIFS paths and won’t work for other methods of connecting.

                                        Also, as a note, NFS needs full path to the destination when you try to mount it, not just to the shared folder. Not sure if that’s the case on your end!

                                        T george1421G A 3 Replies Last reply Mar 15, 2016, 1:57 PM Reply Quote 2
                                        • T
                                          Tom Elliott @Quazz
                                          last edited by Mar 15, 2016, 1:57 PM

                                          @Quazz I’m only aware of CIFS using \\ not // as the leader.

                                          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! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                                          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

                                          Q 1 Reply Last reply Mar 15, 2016, 1:57 PM Reply Quote 1
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