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    DiskDump to a smaller USB

    IT Discussion
    diskdump usb cloning smaller
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    • DustinB3403
      DustinB3403 last edited by

      So how can I clone a 32GB USB used to run Xen Server to a 16GB USB Drive so I have a spare?

      Clonezilla won't even see the 16GB USB in Linux I'm not seeing any "easy" (I'm not familiar with) approach.

      1 Reply Last reply Reply Quote 0
      • MattSpeller
        MattSpeller last edited by MattSpeller

        dd? GPARTED?

        1 Reply Last reply Reply Quote 0
        • DustinB3403
          DustinB3403 last edited by

          GParted isn't showing the option to clone....

          MattSpeller 2 Replies Last reply Reply Quote 0
          • MattSpeller
            MattSpeller @DustinB3403 last edited by

            @DustinB3403 uhh look for copy I think

            you need to resize, copy, paste IIRC

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            • MattSpeller
              MattSpeller @DustinB3403 last edited by MattSpeller

              @DustinB3403 oh, back it up first. Resize can go caddywompus really easily

              DustinB3403 1 Reply Last reply Reply Quote 1
              • DustinB3403
                DustinB3403 @MattSpeller last edited by

                @MattSpeller said:

                @DustinB3403 oh, back it up first, resize can go caddywompus really easily

                ....

                I am trying to back it up....

                MattSpeller 2 Replies Last reply Reply Quote 0
                • Dashrender
                  Dashrender last edited by

                  Linux doesn't see the 16 GB stick at all?

                  DustinB3403 1 Reply Last reply Reply Quote 0
                  • MattSpeller
                    MattSpeller @DustinB3403 last edited by

                    @DustinB3403 to something else lol

                    1 Reply Last reply Reply Quote 0
                    • DustinB3403
                      DustinB3403 @Dashrender last edited by

                      @Dashrender well Clonezilla didn't.

                      Lubuntu in a live cd does.

                      1 Reply Last reply Reply Quote 0
                      • MattSpeller
                        MattSpeller @DustinB3403 last edited by

                        @DustinB3403 dd an img of it onto something else, then have at it

                        DustinB3403 1 Reply Last reply Reply Quote 0
                        • DustinB3403
                          DustinB3403 @MattSpeller last edited by

                          @MattSpeller How?

                          I have never used dd

                          MattSpeller 1 Reply Last reply Reply Quote 0
                          • MattSpeller
                            MattSpeller @DustinB3403 last edited by

                            @DustinB3403 oh!! you're in for a treat!

                            It's practically the only linux thing I know how to do because it's damn useful

                            Let me find a guide here....

                            1 Reply Last reply Reply Quote 2
                            • DustinB3403
                              DustinB3403 last edited by

                              So /dev/sdd has

                              sdd1 etc3 4GB
                              sdd2 fat32 4gb
                              sdd3 lvm2 pv 21.82GB

                              MattSpeller 1 Reply Last reply Reply Quote 0
                              • DustinB3403
                                DustinB3403 last edited by

                                Now I very well might need to restart the setup if in fact this USB is using almost 22GB on a partition that stores nothing..

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                                • MattSpeller
                                  MattSpeller @DustinB3403 last edited by

                                  @DustinB3403 http://www.computerhope.com/unix/dd.htm

                                  Examples at the bottom, you want to take a copy of the whole SDD drive and dump it to an image of whatever flavour you fancy.

                                  1 Reply Last reply Reply Quote 1
                                  • DustinB3403
                                    DustinB3403 last edited by

                                    So

                                    dd if=/dev/sdd of=/dev/sdb
                                    

                                    Should clone it from the larger to the smaller disk?

                                    MattSpeller 1 Reply Last reply Reply Quote 0
                                    • MattSpeller
                                      MattSpeller @DustinB3403 last edited by MattSpeller

                                      @DustinB3403 said:

                                      So

                                      dd if=/dev/sdd of=/dev/sdb
                                      

                                      Should clone it from the larger to the smaller disk?

                                      Uhhhh yeahhhhhhh but you don't want to do that like that

                                      First you want someone to double check what I'm suggesting, then read on

                                      Something like:

                                      dd if=/dev/sdd of=/dev/(hard drive)/(backup folder)/imageof32gbimportantthingy.img bs=4k

                                      will get you a backup copy of the 32gb, then you can mangle it with GParted and not worry

                                      DD is the ultimate "I want to copy X to Y and don't bother me with the details" tool - it's INCREDIBLY powerful

                                      1 Reply Last reply Reply Quote 1
                                      • DustinB3403
                                        DustinB3403 last edited by

                                        So I have to backup it up to an img file first and then write it, is that correct?

                                        MattSpeller 1 Reply Last reply Reply Quote 0
                                        • MattSpeller
                                          MattSpeller @DustinB3403 last edited by MattSpeller

                                          @DustinB3403 said:

                                          So I have to backup it up to an img file first and then write it, is that correct?

                                          Back it up to the img file then consult with someone who knows more man. We're at the bleeding edge of my linux expertise here.

                                          Were it me, I'd take the backup then resize the 32GB usb with gparted then you can use gparted or DD to copy it to the other USB

                                          1 Reply Last reply Reply Quote 1
                                          • stacksofplates
                                            stacksofplates last edited by stacksofplates

                                            There might be an easier way, but I would dd it to a logical volume, then shrink the logical volume and then dd the volume to the smaller USB.

                                            lvcreate -L 32G -n <name> <volumegroup>
                                            
                                            dd if=/dev/usbdrive of=/dev/<volumegroup>/<volumename> bs=4M
                                            
                                            resize2fs /dev/<volumegroup>/<volumename> 16G
                                            
                                            lvreduce -L 16G /dev/<volumegroup>/<volumename>
                                            
                                            dd if=/dev/<volumegroup>/<volumename> of=/dev/smallerusbdrive
                                            

                                            I would take a backup of the 32 GB usb drive before I did anything. You can just dd if=/dev/usbdrive of=/home/dustinb3403/usbfile bs=4M to make sure nothing is lost.

                                            MattSpeller 1 Reply Last reply Reply Quote 2
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