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    Imaging Linux systems, UUID for swap not matching on deployed systems. Eh?

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    • Tom ElliottT
      Tom Elliott
      last edited by

      [quote=“Hongyun, post: 34056, member: 1117”]I’m having the same problem with Mageia 4 system. Attached image is what’s show up after deployed a computer. It only complaints about the swap partition UUID.

      And before I upload the image, I’ve already changed the fstab file to use either the disk name /dev/sda5, or the label of the swap partition LABEL=SWAP, in both cases, I get the same result.

      Any idea how to fix this?

      Thanks,
      Hongyun[/quote]

      What version of FOG are you running?

      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

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      • H
        Hongyun
        last edited by

        The newest version 1.1.2

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        • Tom ElliottT
          Tom Elliott
          last edited by

          Chances are that’s the majority of the problem. I don’t think it did the correct things for the UUID.

          Can you upgrade to 1.2.0 and reupload the original image and test again?

          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

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          • H
            Hongyun
            last edited by

            I just upgrade the FOG server, you have a 1.2.0 now? That was fast, I will try the new version. Thanks!

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            • H
              Hongyun
              last edited by

              I found each time after I upgrade FOG, the /etc/exports file got overwritten, I have to re-enter all my storage nodes again to make it work. Is it possible you can keep that file in your next version? Just some thoughts 🙂

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              • H
                Hongyun
                last edited by

                Hi Tom,
                I tried the new version, result is the same 😞 any other suggestions?

                Thanks,
                Hongyun

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                • Tom ElliottT
                  Tom Elliott
                  last edited by

                  Did you reupload the image or just try redeploying?

                  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

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                  • H
                    Hongyun
                    last edited by

                    Yes, I reuploaded the image after the upgrade yesterday, and redeployed the computer today.

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                    • H
                      Hongyun
                      last edited by

                      I think it has something to do with the OS. I tried reupload a working image and then download it again, it still works. But this Mageia 4.1 OS doesn’t work properly. I will try to reinstall it with ext3 partition to see if it works.

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                      • I
                        ianabc Testers
                        last edited by

                        [quote=“Hongyun, post: 34129, member: 1117”]I think it has something to do with the OS. I tried reupload a working image and then download it again, it still works. But this Mageia 4.1 OS doesn’t work properly. I will try to reinstall it with ext3 partition to see if it works.[/quote]

                        UUIDs work for ext3 and ext4 filesystems because the UUID is part of the filesystem itself, it is written into the superblock. Since Fog 1.2.0 fog also seems to allow UUIDs in /etc/fstab for swap partitions. For other filesystems, I’m not sure, I haven’t noticed any problems with xfs, but I haven’t looked too close. Incidentally, there are some other reasons to use ext4 - fog 1.2.0 can resize ext4 filesystems automatically!

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                        • H
                          Hongyun
                          last edited by

                          [quote=“ianabc, post: 34153, member: 24548”]UUIDs work for ext3 and ext4 filesystems because the UUID is part of the filesystem itself, it is written into the superblock. Since Fog 1.2.0 fog also seems to allow UUIDs in /etc/fstab for swap partitions. For other filesystems, I’m not sure, I haven’t noticed any problems with xfs, but I haven’t looked too close. Incidentally, there are some other reasons to use ext4 - fog 1.2.0 can resize ext4 filesystems automatically![/quote]
                          But I think the problem now is that after downloading the FOG image, the swap partition’s UUID got changed, even when I download the image to the same computer where I uploaded the image from. Our instructor prefer the Mageia 4.1, I’m still trying to make this work with FOG, a month left before the term starts, feeling the pressure now:(

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                          • I
                            ianabc Testers
                            last edited by

                            From the image you showed above, are you sure that swap is the problem? what filesystems are your other partitions on? swap problems shouldn’t stop a system from booting in general - as I might have said above, it’s just swap!

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                            • I
                              ianabc Testers
                              last edited by

                              Actually it looks like mageia (and some fedora) might have an issue with swap UUIDs. Somebody thought that putting UUIDs into initramfs was a good idea. There are some workarounds, but I don’t have any machines to work with to try them out.

                              [LIST]
                              [][url]https://forums.mageia.org/en/viewtopic.php?f=7&t=7093[/url]
                              [                              ][url]http://forums.fedoraforum.org/showthread.php?t=292088[/url]
                              [/LIST]
                              Additionally, when an instructor - or anyone for that matter - asks for a specific distribution, it is a good idea to ask them what they are intending to do with it. Unless they are working with the package manager(s) day to day it generally doesn’t matter. Usually they have conflated a specific set of applications and versions with an distribution.

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                              • I
                                ianabc Testers
                                last edited by

                                Could you take a look in /images/NAMEOFYOURIMAGE and see if you can find a file similar to “d1.original.swapuuids”. Here is one of mine
                                [CODE]
                                $ cat /images/RHL7x64PIMS50GBResizeable/d1.original.swapuuids
                                /dev/sda5 7f6a8920-bab3-444d-8e3f-acca4c76e3cd
                                [/CODE]
                                When I deploy that image to a machine the UUID of the swap partition matches
                                [CODE]
                                $ blkid /dev/sda5 UUID=“7f6a8920-bab3-444d-8e3f-acca4c76e3cd”
                                [/CODE]
                                Obviously, change /dev/sda5 to wherever your swap partition is.

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                                • H
                                  Hongyun
                                  last edited by

                                  [root@foggy henn205mageia4]# ls -la
                                  total 1659936
                                  drwxrwxrwx. 2 root root 4096 Jul 25 10:29 .
                                  drwxrwxrwx. 39 fog fog 4096 Jul 25 11:56 …
                                  -rwxrwxrwx. 1 root root 0 Jul 25 10:16 d1.has_grub
                                  -rwxrwxrwx. 1 root root 1048576 Jul 25 10:16 d1.mbr
                                  -rwxrwxrwx. 1 root root 1698702304 Jul 25 10:29 d1p1.img
                                  -rwxrwxrwx. 1 root root 1131 Jul 25 10:29 d1p2.img
                                  -rwxrwxrwx. 1 root root 310 Jul 25 10:16 d1.partitions

                                  That’s everything I got on the server image folder.

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                                  • H
                                    Hongyun
                                    last edited by

                                    [root@foggy henn205mageia4]# cat d1.partitions

                                    partition table of /dev/sda

                                    unit: sectors

                                    /dev/sda1 : start= 2048, size=960572497, Id=83, bootable
                                    /dev/sda2 : start=960577506, size= 16190559, Id= 5
                                    /dev/sda3 : start= 0, size= 0, Id= 0
                                    /dev/sda4 : start= 0, size= 0, Id= 0
                                    /dev/sda5 : start=960577536, size= 16190529, Id=82

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                                    • I
                                      ianabc Testers
                                      last edited by

                                      hmm…Did you create that image with an older version of fog? On fog 1.2.0 uploading a linux image gives me the following
                                      [CODE]
                                      drwxrwxrwx. 2 root root 4096 Jul 22 15:03 .
                                      drwxrwxrwx. 56 fog root 4096 Jul 22 15:03 …
                                      -rwxrwxrwx. 1 root root 4 Jul 22 14:48 d1.fixed_size_partitions
                                      -rwxrwxrwx. 1 root root 0 Jul 22 14:49 d1.has_grub
                                      -rwxrwxrwx. 1 root root 1048576 Jul 22 14:49 d1.mbr
                                      -rwxrwxrwx. 1 root root 310 Jul 22 14:49 d1.minimum.partitions
                                      -rwxrwxrwx. 1 root root 80 Jul 22 14:49 d1.original.fstypes
                                      -rwxrwxrwx. 1 root root 310 Jul 22 14:48 d1.original.partitions
                                      -rwxrwxrwx. 1 root root 47 Jul 22 15:03 d1.original.swapuuids
                                      -rwxrwxrwx. 1 root root 84480518 Jul 22 14:49 d1p1.img
                                      -rwxrwxrwx. 1 root root 1944498680 Jul 22 14:53 d1p2.img
                                      -rwxrwxrwx. 1 root root 6416223022 Jul 22 15:03 d1p3.img

                                      -rwxrwxrwx. 1 root root 125 Jul 22 15:03 d1p4.img
                                      [/CODE]
                                      Did you try [B]uploading[/B] the image with 1.2.0 and then deploying it again. N.B. This is for a “Resizeable” image, it looks like the code for “Multiple partition” images might need to be updated to match.

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                                      • H
                                        Hongyun
                                        last edited by

                                        Yes, I upload the image with 1.2.0, but the image type is Multiple Partition Image - Single Disk (Not Resizable).

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                                        • H
                                          Hongyun
                                          last edited by

                                          Will sigle disk resizable work with Linux & dual boot systems?

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                                          • I
                                            ianabc Testers
                                            last edited by

                                            Since 1.2.0 it supports linux and (as far as I know) dual boot. I haven’t tested the dual boot myself but the linux resizable works for me. The key seems to be to stick to ext4 filesystems.

                                            I’ll try to take a look to see if we could retain swap UUIDs for multiple partition image types.

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