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    Solved CentOS 7 VM will not boot

    IT Discussion
    centos centos 7 linux virtualization hyper-v hyper-v 2012 r2
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    • JaredBuschJ
      JaredBusch
      last edited by scottalanmiller

      Ok, This VM was running along just fine this morning.

      I logged into SSH and told it to shut down with power off

      I made a change to the network card not part of the hyper-v switch, ran windows updates, and rebooted the windows server (Datacenter 2012R2, Core + GUI + Hyper-V)

      All of the windows server VM's booted up just fine. My CentOS 7 VM did not.

      http://i.imgur.com/syDwzzG.jpg

      1 Reply Last reply Reply Quote 0
      • ?
        A Former User
        last edited by

        Hope you made a backup!

        JaredBuschJ 1 Reply Last reply Reply Quote 0
        • JaredBuschJ
          JaredBusch @A Former User
          last edited by

          @thecreativeone91
          not yet I hadn't. was not too much on there, but enough that I am highly annoyed

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

            Looks like a corrupted or missing boot filesystem. Boot from a CentOS 7 Live CD to fix from there.

            JaredBuschJ 1 Reply Last reply Reply Quote 0
            • JaredBuschJ
              JaredBusch
              last edited by

              the biggest thing on there was my daerma.com wordpress site.

              I do have a backup of that from the day I moved it to this VM. I will lose a few posts but nothing important.

              1 Reply Last reply Reply Quote 0
              • JaredBuschJ
                JaredBusch @scottalanmiller
                last edited by

                @scottalanmiller said:

                Looks like a corrupted or missing boot filesystem. Boot from a CentOS 7 Live CD to fix from there.

                I'll have to google that process, but can do.

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

                  Getting the disc in is easy. Recovering May or may not be.

                  JaredBuschJ 1 Reply Last reply Reply Quote 0
                  • JaredBuschJ
                    JaredBusch @scottalanmiller
                    last edited by

                    cannot change the boot device. No idea WTF happened here.

                    http://i.imgur.com/vFinswK.jpg

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

                      What hypervisor is that?

                      If the firmware failed, maybe that is the issue.

                      JaredBuschJ 1 Reply Last reply Reply Quote 0
                      • JaredBuschJ
                        JaredBusch @scottalanmiller
                        last edited by JaredBusch

                        @scottalanmiller said:

                        What hypervisor is that?
                        If the firmware failed, maybe that is the issue.

                        Hyper-V Role inside Server 2012 R2.

                        I did a quick Google and did not get any results. But I had to leave for a dinner with the family and friends. Will look again tonight.

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                        • ?
                          A Former User
                          last edited by

                          The Panic Code refers to a IPMI (BIOS) Issue. I wonder if you could just make a new VM and attach the disk to it and boot it?

                          JaredBuschJ 1 Reply Last reply Reply Quote 0
                          • JaredBuschJ
                            JaredBusch @A Former User
                            last edited by

                            @thecreativeone91 said:

                            The Panic Code refers to a IPMI (BIOS) Issue. I wonder if you could just make a new VM and attach the disk to it and boot it?

                            Was thinking to try that if my google fu fails later. Maybe I should just try it first.

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

                              Not familiar with what might make HyperV do that 😞

                              JaredBuschJ 1 Reply Last reply Reply Quote 0
                              • JaredBuschJ
                                JaredBusch @scottalanmiller
                                last edited by

                                @scottalanmiller said:

                                Not familiar with what might make HyperV do that 😞

                                Tried to make a new VM and just attach the VHDX with no luck.

                                Created a complete VM installed CentOS and then shut down and added the old drive as a second HDD. it shows up when I check fdisk. So now to figure out how to copy the everything.

                                JaredBuschJ 1 Reply Last reply Reply Quote 0
                                • JaredBuschJ
                                  JaredBusch @JaredBusch
                                  last edited by JaredBusch

                                  looks like sdb3 is not readable? sdb1 and sdb2 mounted and were readable.

                                  Here is a screenshot. typo's included 🙂
                                  Screen Shot 2014-08-22 at 10.31.56 PM.png

                                  JaredBuschJ 1 Reply Last reply Reply Quote 0
                                  • JaredBuschJ
                                    JaredBusch @JaredBusch
                                    last edited by

                                    learning more linux.. there is the data. so how to recover.

                                    Screen Shot 2014-08-22 at 10.47.59 PM.png

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

                                      If you can see it like that, what is stopping you from just copying it?

                                      JaredBuschJ 1 Reply Last reply Reply Quote 0
                                      • JaredBuschJ
                                        JaredBusch @scottalanmiller
                                        last edited by

                                        @scottalanmiller said:

                                        If you can see it like that, what is stopping you from just copying it?

                                        i copied that. now looking for the mariadb files

                                        JaredBuschJ 1 Reply Last reply Reply Quote 0
                                        • JaredBuschJ
                                          JaredBusch @JaredBusch
                                          last edited by

                                          found the db files. now to figure out how to connect them

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

                                            Oh database files, that sucks. What DB engine is it? MyISAM? InnoDB? Something else?

                                            JaredBuschJ 1 Reply Last reply Reply Quote 0
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