Resize qcow2 root parition












2















I'm trying to re-size the file system on a Centos 7 vm because I made the vm too small to even do a yum update. I already have done some configurations to the virtual machine and it would be pain to do it all over again, so I've been trying to re-size the virtual machine using virt-resize



On the host machine when I run qemu-img info tkk.qcow2 I get the following information



image: tkk.qcow2
file format: qcow2
virtual size: 17G (18253611008 bytes)
disk size: 2.5G
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: true


The virtual size used to be smaller but I used qemu-img resize tkk.qcow2 +10G Then I created a backup of the original file tkk.qcow2 with cp tkk.qcow2 tkk-orig.qcow2 and then I ran



virt-resize –expand /dev/sda2 tkk-orig.qcow2 tkk.qcow2 to increase it's size. When I rerun qemu-img info tkk.qcow2 it shows that the Virtual Size has increase by whatever value I added on top of the previous value, but the Disk Size doesn't and I still can't do yum update due to too little space I would like to add at least 5GB more to this minimal vm.
The output of



virt-filesystems --long -h --all -a tkk.qcow2

/dev/sda1 filesystem xfs - - 15G -
/dev/centos_tkk/root filesystem xfs - - 1.3G -
/dev/centos_tkk/swap filesystem swap - - 204M -
/dev/centos_tkk/root lv - - - 1.3G /dev/centos_tkk
/dev/centos_tkk/swap lv - - - 204M /dev/centos_tkk
/dev/centos_tkk vg - - - 1.5G /dev/sda2
/dev/sda2 pv - - - 1.5G -
/dev/sda1 partition - - 83 15G /dev/sda
/dev/sda2 partition - - 8e 1.5G /dev/sda
/dev/sda device - - - 17G -


I have been following these steps on this blog https://fatmin.com/2016/12/20/how-to-resize-a-qcow2-image-and-filesystem-with-virt-resize/










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    I'm trying to re-size the file system on a Centos 7 vm because I made the vm too small to even do a yum update. I already have done some configurations to the virtual machine and it would be pain to do it all over again, so I've been trying to re-size the virtual machine using virt-resize



    On the host machine when I run qemu-img info tkk.qcow2 I get the following information



    image: tkk.qcow2
    file format: qcow2
    virtual size: 17G (18253611008 bytes)
    disk size: 2.5G
    cluster_size: 65536
    Format specific information:
    compat: 1.1
    lazy refcounts: true


    The virtual size used to be smaller but I used qemu-img resize tkk.qcow2 +10G Then I created a backup of the original file tkk.qcow2 with cp tkk.qcow2 tkk-orig.qcow2 and then I ran



    virt-resize –expand /dev/sda2 tkk-orig.qcow2 tkk.qcow2 to increase it's size. When I rerun qemu-img info tkk.qcow2 it shows that the Virtual Size has increase by whatever value I added on top of the previous value, but the Disk Size doesn't and I still can't do yum update due to too little space I would like to add at least 5GB more to this minimal vm.
    The output of



    virt-filesystems --long -h --all -a tkk.qcow2

    /dev/sda1 filesystem xfs - - 15G -
    /dev/centos_tkk/root filesystem xfs - - 1.3G -
    /dev/centos_tkk/swap filesystem swap - - 204M -
    /dev/centos_tkk/root lv - - - 1.3G /dev/centos_tkk
    /dev/centos_tkk/swap lv - - - 204M /dev/centos_tkk
    /dev/centos_tkk vg - - - 1.5G /dev/sda2
    /dev/sda2 pv - - - 1.5G -
    /dev/sda1 partition - - 83 15G /dev/sda
    /dev/sda2 partition - - 8e 1.5G /dev/sda
    /dev/sda device - - - 17G -


    I have been following these steps on this blog https://fatmin.com/2016/12/20/how-to-resize-a-qcow2-image-and-filesystem-with-virt-resize/










    share|improve this question














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      I'm trying to re-size the file system on a Centos 7 vm because I made the vm too small to even do a yum update. I already have done some configurations to the virtual machine and it would be pain to do it all over again, so I've been trying to re-size the virtual machine using virt-resize



      On the host machine when I run qemu-img info tkk.qcow2 I get the following information



      image: tkk.qcow2
      file format: qcow2
      virtual size: 17G (18253611008 bytes)
      disk size: 2.5G
      cluster_size: 65536
      Format specific information:
      compat: 1.1
      lazy refcounts: true


      The virtual size used to be smaller but I used qemu-img resize tkk.qcow2 +10G Then I created a backup of the original file tkk.qcow2 with cp tkk.qcow2 tkk-orig.qcow2 and then I ran



      virt-resize –expand /dev/sda2 tkk-orig.qcow2 tkk.qcow2 to increase it's size. When I rerun qemu-img info tkk.qcow2 it shows that the Virtual Size has increase by whatever value I added on top of the previous value, but the Disk Size doesn't and I still can't do yum update due to too little space I would like to add at least 5GB more to this minimal vm.
      The output of



      virt-filesystems --long -h --all -a tkk.qcow2

      /dev/sda1 filesystem xfs - - 15G -
      /dev/centos_tkk/root filesystem xfs - - 1.3G -
      /dev/centos_tkk/swap filesystem swap - - 204M -
      /dev/centos_tkk/root lv - - - 1.3G /dev/centos_tkk
      /dev/centos_tkk/swap lv - - - 204M /dev/centos_tkk
      /dev/centos_tkk vg - - - 1.5G /dev/sda2
      /dev/sda2 pv - - - 1.5G -
      /dev/sda1 partition - - 83 15G /dev/sda
      /dev/sda2 partition - - 8e 1.5G /dev/sda
      /dev/sda device - - - 17G -


      I have been following these steps on this blog https://fatmin.com/2016/12/20/how-to-resize-a-qcow2-image-and-filesystem-with-virt-resize/










      share|improve this question














      I'm trying to re-size the file system on a Centos 7 vm because I made the vm too small to even do a yum update. I already have done some configurations to the virtual machine and it would be pain to do it all over again, so I've been trying to re-size the virtual machine using virt-resize



      On the host machine when I run qemu-img info tkk.qcow2 I get the following information



      image: tkk.qcow2
      file format: qcow2
      virtual size: 17G (18253611008 bytes)
      disk size: 2.5G
      cluster_size: 65536
      Format specific information:
      compat: 1.1
      lazy refcounts: true


      The virtual size used to be smaller but I used qemu-img resize tkk.qcow2 +10G Then I created a backup of the original file tkk.qcow2 with cp tkk.qcow2 tkk-orig.qcow2 and then I ran



      virt-resize –expand /dev/sda2 tkk-orig.qcow2 tkk.qcow2 to increase it's size. When I rerun qemu-img info tkk.qcow2 it shows that the Virtual Size has increase by whatever value I added on top of the previous value, but the Disk Size doesn't and I still can't do yum update due to too little space I would like to add at least 5GB more to this minimal vm.
      The output of



      virt-filesystems --long -h --all -a tkk.qcow2

      /dev/sda1 filesystem xfs - - 15G -
      /dev/centos_tkk/root filesystem xfs - - 1.3G -
      /dev/centos_tkk/swap filesystem swap - - 204M -
      /dev/centos_tkk/root lv - - - 1.3G /dev/centos_tkk
      /dev/centos_tkk/swap lv - - - 204M /dev/centos_tkk
      /dev/centos_tkk vg - - - 1.5G /dev/sda2
      /dev/sda2 pv - - - 1.5G -
      /dev/sda1 partition - - 83 15G /dev/sda
      /dev/sda2 partition - - 8e 1.5G /dev/sda
      /dev/sda device - - - 17G -


      I have been following these steps on this blog https://fatmin.com/2016/12/20/how-to-resize-a-qcow2-image-and-filesystem-with-virt-resize/







      centos qemu






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      asked Mar 6 '17 at 19:54









      KatzKatz

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          Since you're using LVM it's necessary to expand the PV (Physical Volume) firstly and then expand the LVM root partition.
          You can follow this how-to:
          https://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-hard-way/






          share|improve this answer























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            Since you're using LVM it's necessary to expand the PV (Physical Volume) firstly and then expand the LVM root partition.
            You can follow this how-to:
            https://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-hard-way/






            share|improve this answer




























              0














              Since you're using LVM it's necessary to expand the PV (Physical Volume) firstly and then expand the LVM root partition.
              You can follow this how-to:
              https://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-hard-way/






              share|improve this answer


























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                Since you're using LVM it's necessary to expand the PV (Physical Volume) firstly and then expand the LVM root partition.
                You can follow this how-to:
                https://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-hard-way/






                share|improve this answer













                Since you're using LVM it's necessary to expand the PV (Physical Volume) firstly and then expand the LVM root partition.
                You can follow this how-to:
                https://dnaeon.github.io/resizing-a-kvm-disk-image-on-lvm-the-hard-way/







                share|improve this answer












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                answered Mar 6 '17 at 22:28









                DarkVexDarkVex

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