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    Solved Fedora Block Device Full How - Extend Partition

    IT Discussion
    fedora lvm extend partition
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    • DustinB3403
      DustinB3403 last edited by DustinB3403

      Ok asking the experts here, I have a VM that an long-gone intern setup with a tiny partition, only 49GB, and I need to extend it.

      Here is what I have.
      0_1484665892847_XenCenterMain_2017-01-17_10-11-27.png

      0_1484665971764_XenCenterMain_2017-01-17_10-12-19.png

      How can I extend /dev/fedora/root to take all of /dev/xvda ?

      1 Reply Last reply Reply Quote 1
      • F
        Francesco Provino last edited by

        I see you are using LVM (that's good!), so…

        • First, create a new block device in the free space;
        • PVadd the new block device to your VG (fedora, I think);
        • lvextend your root LV;
        • xfs_growfs your root FS, and you'll be done ;).
        DustinB3403 1 Reply Last reply Reply Quote 3
        • F
          Francesco Provino last edited by

          Of course, you can incrementally add multiple virtual disks to the VM, adding it as PV to your VG etc…

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

            @Francesco-Provino OK give me a moment, working to create the block device.

            travisdh1 1 Reply Last reply Reply Quote 0
            • travisdh1
              travisdh1 @DustinB3403 last edited by

              @DustinB3403

              pvcreate /dev/newpartition
              vgextend fedora /dev/newpartition
              lvextend -l 100%FREE /dev/fedora/root /dev/newpartition
              

              I don't know the command to expand an ext4 file system off the top of my head 😕

              DustinB3403 F 2 Replies Last reply Reply Quote 0
              • DustinB3403
                DustinB3403 @travisdh1 last edited by gjacobse

                @travisdh1

                0_1484666961800_XenCenterMain_2017-01-17_10-29-14.png

                travisdh1 1 Reply Last reply Reply Quote 0
                • stacksofplates
                  stacksofplates last edited by

                  Is /dev/xvda2 mounted somewhere?

                  1 Reply Last reply Reply Quote 1
                  • travisdh1
                    travisdh1 @DustinB3403 last edited by

                    @DustinB3403 If you're sure that /dev/xvda2 is not being used by something else, try the pvcreate with -ff. It should force the command to complete.

                    1 Reply Last reply Reply Quote 0
                    • F
                      Francesco Provino @travisdh1 last edited by

                      @travisdh1 said in Fedora Block Device Full How - Extend Partition:

                      @DustinB3403

                      pvcreate /dev/newpartition
                      vgextend fedora /dev/newpartition
                      lvextend -l 100%FREE /dev/fedora/root /dev/newpartition
                      

                      I don't know the command to expand an ext4 file system off the top of my head 😕

                      His root is XFS, so xfs_grows should do the trick.

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

                        The system is saying that xvda2 is mounted.

                        Yet I have no idea how it's mounted.

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

                          @DustinB3403 said in Fedora Block Device Full How - Extend Partition:

                          The system is saying that xvda2 is mounted.

                          Yet I have no idea how it's mounted.

                          df -h

                          DustinB3403 1 Reply Last reply Reply Quote 0
                          • F
                            Francesco Provino @DustinB3403 last edited by

                            @DustinB3403 said in Fedora Block Device Full How - Extend Partition:

                            The system is saying that xvda2 is mounted.

                            Yet I have no idea how it's mounted.

                            So, just grep /etc/mtab for xvda2.

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

                              @stacksofplates

                              0_1484667298820_XenCenterMain_2017-01-17_10-34-47.png

                              F 1 Reply Last reply Reply Quote 0
                              • F
                                Francesco Provino @DustinB3403 last edited by

                                @DustinB3403 said in Fedora Block Device Full How - Extend Partition:

                                @stacksofplates 0_1484667298820_XenCenterMain_2017-01-17_10-34-47.png

                                So, I think you can safely force the pvcreate.

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

                                  @Francesco-Provino when I try for force pvcreate using

                                  pvcreate /dev/xdva2 -ff it results in

                                  0_1484667384836_XenCenterMain_2017-01-17_10-36-19.png

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

                                    Oh, xvda2 is your root filesystem. What's the output of fdisk -l? It looks like it should be xvda3

                                    xvda1 is the boot partition.

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

                                      @stacksofplates 0_1484667420065_XenCenterMain_2017-01-17_10-36-53.png

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

                                        Did you create a partition for the free space? You need to use fdisk to make a third primary partition.

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

                                          @stacksofplates ok, following this here.

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

                                            Dumb question, would it be easier for me to simply add a separate drive, and then extend the root drive into the new drive?

                                            F 1 Reply Last reply Reply Quote 0
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