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    Fedora Powerloss

    IT Discussion
    fedora 27 kvm power outage
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    • Emad RE
      Emad R @mattbagan
      last edited by

      @mattbagan said in Fedora Powerloss:

      sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

      check the file system for errors + scrub the raid array if you are paranoid

      scottalanmillerS 1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller @Emad R
        last edited by

        @emad-r said in Fedora Powerloss:

        @mattbagan said in Fedora Powerloss:

        sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

        check the file system for errors + scrub the raid array if you are paranoid

        XFS doesn't even have a filesystem check utility 🙂

        thwrT 1 Reply Last reply Reply Quote 0
        • thwrT
          thwr @scottalanmiller
          last edited by thwr

          @scottalanmiller said in Fedora Powerloss:

          @emad-r said in Fedora Powerloss:

          @mattbagan said in Fedora Powerloss:

          sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

          check the file system for errors + scrub the raid array if you are paranoid

          XFS doesn't even have a filesystem check utility 🙂

          xfs_check
          http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

          scottalanmillerS 1 Reply Last reply Reply Quote 0
          • scottalanmillerS
            scottalanmiller @thwr
            last edited by

            @thwr said in Fedora Powerloss:

            @scottalanmiller said in Fedora Powerloss:

            @emad-r said in Fedora Powerloss:

            @mattbagan said in Fedora Powerloss:

            sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

            check the file system for errors + scrub the raid array if you are paranoid

            XFS doesn't even have a filesystem check utility 🙂

            xfs_check
            http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

            Does it actually do something? XFS famously does a placebo check.

            thwrT dafyreD 2 Replies Last reply Reply Quote 0
            • thwrT
              thwr @scottalanmiller
              last edited by

              @scottalanmiller said in Fedora Powerloss:

              @thwr said in Fedora Powerloss:

              @scottalanmiller said in Fedora Powerloss:

              @emad-r said in Fedora Powerloss:

              @mattbagan said in Fedora Powerloss:

              sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

              check the file system for errors + scrub the raid array if you are paranoid

              XFS doesn't even have a filesystem check utility 🙂

              xfs_check
              http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

              Does it actually do something? XFS famously does a placebo check.

              Honestly, I don't know 😛

              1 Reply Last reply Reply Quote 0
              • dafyreD
                dafyre @scottalanmiller
                last edited by

                @scottalanmiller said in Fedora Powerloss:

                @thwr said in Fedora Powerloss:

                @scottalanmiller said in Fedora Powerloss:

                @emad-r said in Fedora Powerloss:

                @mattbagan said in Fedora Powerloss:

                sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                check the file system for errors + scrub the raid array if you are paranoid

                XFS doesn't even have a filesystem check utility 🙂

                xfs_check
                http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                Does it actually do something? XFS famously does a placebo check.

                Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                scottalanmillerS 1 Reply Last reply Reply Quote 1
                • scottalanmillerS
                  scottalanmiller @dafyre
                  last edited by

                  @dafyre said in Fedora Powerloss:

                  @scottalanmiller said in Fedora Powerloss:

                  @thwr said in Fedora Powerloss:

                  @scottalanmiller said in Fedora Powerloss:

                  @emad-r said in Fedora Powerloss:

                  @mattbagan said in Fedora Powerloss:

                  sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                  check the file system for errors + scrub the raid array if you are paranoid

                  XFS doesn't even have a filesystem check utility 🙂

                  xfs_check
                  http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                  Does it actually do something? XFS famously does a placebo check.

                  Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                  Interesting. With XFS?

                  dafyreD 1 Reply Last reply Reply Quote 0
                  • dafyreD
                    dafyre @scottalanmiller
                    last edited by

                    @scottalanmiller said in Fedora Powerloss:

                    @dafyre said in Fedora Powerloss:

                    @scottalanmiller said in Fedora Powerloss:

                    @thwr said in Fedora Powerloss:

                    @scottalanmiller said in Fedora Powerloss:

                    @emad-r said in Fedora Powerloss:

                    @mattbagan said in Fedora Powerloss:

                    sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                    check the file system for errors + scrub the raid array if you are paranoid

                    XFS doesn't even have a filesystem check utility 🙂

                    xfs_check
                    http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                    Does it actually do something? XFS famously does a placebo check.

                    Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                    Interesting. With XFS?

                    Yepp. I know the system is XFS. I'm trying to get connected to it now, but it lost it's AD connection and I don't have a local login on it, lol.

                    thwrT 1 Reply Last reply Reply Quote 0
                    • thwrT
                      thwr @dafyre
                      last edited by thwr

                      @dafyre said in Fedora Powerloss:

                      @scottalanmiller said in Fedora Powerloss:

                      @dafyre said in Fedora Powerloss:

                      @scottalanmiller said in Fedora Powerloss:

                      @thwr said in Fedora Powerloss:

                      @scottalanmiller said in Fedora Powerloss:

                      @emad-r said in Fedora Powerloss:

                      @mattbagan said in Fedora Powerloss:

                      sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                      check the file system for errors + scrub the raid array if you are paranoid

                      XFS doesn't even have a filesystem check utility 🙂

                      xfs_check
                      http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                      Does it actually do something? XFS famously does a placebo check.

                      Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                      Interesting. With XFS?

                      Yepp. I know the system is XFS. I'm trying to get connected to it now, but it lost it's AD connection and I don't have a local login on it, lol.

                      Can't you boot the machine using some LiveCD and alter the PAM order / add pam_unix/pam_localuser? You could also change root's password this way. This only works if the drive is not encrypted or you have the key.

                      dafyreD 1 Reply Last reply Reply Quote 0
                      • dafyreD
                        dafyre @thwr
                        last edited by

                        @thwr said in Fedora Powerloss:

                        @dafyre said in Fedora Powerloss:

                        @scottalanmiller said in Fedora Powerloss:

                        @dafyre said in Fedora Powerloss:

                        @scottalanmiller said in Fedora Powerloss:

                        @thwr said in Fedora Powerloss:

                        @scottalanmiller said in Fedora Powerloss:

                        @emad-r said in Fedora Powerloss:

                        @mattbagan said in Fedora Powerloss:

                        sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                        check the file system for errors + scrub the raid array if you are paranoid

                        XFS doesn't even have a filesystem check utility 🙂

                        xfs_check
                        http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                        Does it actually do something? XFS famously does a placebo check.

                        Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                        Interesting. With XFS?

                        Yepp. I know the system is XFS. I'm trying to get connected to it now, but it lost it's AD connection and I don't have a local login on it, lol.

                        Can't you boot the machine using some LiveCD and alter the PAM order / add pam_unix/pam_localuser? You could also change root's password this way. This only works if the drive is not encrypted or you have the key.

                        Yeah, I could do that, but I like my job, lol. In an emergency that's what we do, but this isn't an emergency (the system is up, my login isn't working).

                        thwrT 1 Reply Last reply Reply Quote 1
                        • thwrT
                          thwr @dafyre
                          last edited by

                          @dafyre said in Fedora Powerloss:

                          @thwr said in Fedora Powerloss:

                          @dafyre said in Fedora Powerloss:

                          @scottalanmiller said in Fedora Powerloss:

                          @dafyre said in Fedora Powerloss:

                          @scottalanmiller said in Fedora Powerloss:

                          @thwr said in Fedora Powerloss:

                          @scottalanmiller said in Fedora Powerloss:

                          @emad-r said in Fedora Powerloss:

                          @mattbagan said in Fedora Powerloss:

                          sume, I would need to start over with the vm installs, considering they were in the middle of installing the OS. Host machine is setup with mdadm raid.

                          check the file system for errors + scrub the raid array if you are paranoid

                          XFS doesn't even have a filesystem check utility 🙂

                          xfs_check
                          http://docs.cray.com/books/S-2377-22/html-S-2377-22/z1029470303.html

                          Does it actually do something? XFS famously does a placebo check.

                          Yes, it actually does something. It's fixed a couple of systems here for me that wouldn't mount a data drive.

                          Interesting. With XFS?

                          Yepp. I know the system is XFS. I'm trying to get connected to it now, but it lost it's AD connection and I don't have a local login on it, lol.

                          Can't you boot the machine using some LiveCD and alter the PAM order / add pam_unix/pam_localuser? You could also change root's password this way. This only works if the drive is not encrypted or you have the key.

                          Yeah, I could do that, but I like my job, lol. In an emergency that's what we do, but this isn't an emergency (the system is up, my login isn't working).

                          If you say so 😉

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