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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 @scottalanmiller
      last edited by

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

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

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      • 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.

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              • 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

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                      • 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

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                            • 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
                              • JaredBuschJ
                                JaredBusch @scottalanmiller
                                last edited by

                                @scottalanmiller said:

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

                                Wordpress database. running on centos7. so it is mariadb

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                                • scottalanmillerS
                                  scottalanmiller
                                  last edited by

                                  MariaDB is an RDBMS. It isn't a DB engine. It uses other engines. MyISAM and InnoDB are the two most common. There is no MariaDB database engine option.

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                                  • JaredBuschJ
                                    JaredBusch
                                    last edited by

                                    http://daerma.com now loads. the rest popped up the initial wordpress config. going to recopy the db files from the mysql folder

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                                    • JaredBuschJ
                                      JaredBusch
                                      last edited by JaredBusch

                                      @JaredBusch said:

                                      http://daerma.com now loads. the rest popped up the initial wordpress config. going to recopy the db files from the mysql folder

                                      daerma.com is giving me some weird permission error too .i cannot install a plugin or theme, because it pops the FTP login info like my old install did. but I chown'd the wp directory to apache:apache. not sure what is up.

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

                                        well i have been unable to recover everything correctly by copying from the drive that was originally attached.

                                        Would it be possible to copy the boot partitions to the old drive and then try and attach it as the primary drive? That is more in depth CentOS than I know how to handle.

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

                                          At this point I think i will just nuke and rebuild from scratch if I cannot copy the boot partition and have the system come back up. Going to be out all afternoon with the family so looking forward to any ideas you all come up with.

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                                          • scottalanmillerS
                                            scottalanmiller @JaredBusch
                                            last edited by

                                            @JaredBusch said:

                                            @JaredBusch said:

                                            http://daerma.com now loads. the rest popped up the initial wordpress config. going to recopy the db files from the mysql folder

                                            daerma.com is giving me some weird permission error too .i cannot install a plugin or theme, because it pops the FTP login info like my old install did. but I chown'd the wp directory to apache:apache. not sure what is up.

                                            With WP issues, I often just untar a fresh install over top of the old one to make sure that there is no cruft.

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