No disk available for RAID create when using VMDK in virtualbox

    • OMV 4.x
    • Resolved
    • No disk available for RAID create when using VMDK in virtualbox

      I want to use hard drives on OMV installed on virtualbox. I can create VMDK files for using disks as "raw" disks in OMV VM, and this works if I create file system on that VMDK disk. But I can not get those VMDK disks listed in RAID create window.
      Do I miss something from documentation or this configuration can not work (vmdk into RAID array) ?
      Thank you.
    • Only devices that are clean are listed in the RAID creation dialog. So make sure no filesystem is on it or it is not part of a LVM or other RAID. You can check that with


      1. # blkid

      for example.
      Absolutely no support through PM!

      I must not fear.
      Fear is the mind-killer.
      Fear is the little-death that brings total obliteration.
      I will face my fear.
      I will permit it to pass over me and through me.
      And when it has gone past I will turn the inner eye to see its path.
      Where the fear has gone there will be nothing.
      Only I will remain.

      Litany against fear by Bene Gesserit
    • Thank you. Solution: I started with blkid and finished with


      1. dd if=/dev/zero of=/dev/sda bs=512 count=1
      Then I saw disks in OMV VM in RAID create window.

      In terminal of OMV with blkid command I found that disk still have partition type. Removing partitions with gparted did not erase MBR and information about partition table type. Gparted is good but to erase MBR I used dd command. Now disk is "clean".