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Minimum Requirements

  • i486 or amd64 platform
  • 1 GiB RAM
  • 2 GiB HDD/DOM/CF/USB Thumb Drive used as OpenMediaVault system drive. Flash Drives without static wear leveling are not recommended, without it they will have a very short lifetime!
NOTE: The entire disk is used as system disk. The disk can not be used to store user data.
  • 1 HDD for data storage


  • If you are not able to boot the 0.4 installation media, try to disable the serial port in the BIOS settings.
  • OpenMediaVault does not support a data partition on the device where the operation system is installed. Therefore, please note that the whole disk device is occupied by the operation system. During the setup the device is parted into a partition used by /root and a swap partition. All existing data on drive are deleted during installation!
  • Note before installing: To install OpenMediaVault without problems please disconnect all harddisks except the one used for the OpenMediaVault operation system. After installing OpenMediaVault shutdown the system. Then reconnect the drives and restart OpenMediaVault to finish configuration.
  • During the installation process, configure the networking (do not choose to configure the networking later). If the networking isn't configured at this time, you will not be able to access OpenMediaVault from your webbrowser.
  • During the installation process the installer automatically checks for newer versions of the installed packages, so make sure the configured NIC has access to the internet to install the latest package versions.

Installation media

To install OpenMediaVault download the ISO image. You can burn the ISO to a CDROM or create a bootable USB stick.

To install the ISO on an USB stick use the following command:

  • Warning, the dd program has the potential to cause serious data loss if you choose the wrong device. Make sure you are certain before running the command. If you aren't, please start a thread in the forums.
sudo dd if=xxx.iso of=/dev/sdX bs=4096
  • where xxx.iso is the name of the platform-specific ISO that you downloaded, and sdX is the device name of your USB drive.

For creating the USB drive in Windows, use this program:

or this application:

Follow the instructions on that page in order to find the proper device listing within Windows.

Unable to install GRUB in /dev/sda

  • 1. Select
    in this window and also on the next which says Installation step failed.
  • 2. In the Debian installer main menu (which should have popped up by now), select
    Execute a shell
    and then
  • 3. Execute the following commands:
# Chroot.
chroot /target
# Replace [a-z] with the drive you want to install grub to.
# This is normally the drive you've selected to install OpenMediaVault on.
grub-install /dev/sd[a-z]
# Update GRUB.
# Exit chroot.
# Exit shell.
  • 4. Select
    Continue without boot loader
    in the Debian installer main menu and then
  • 5. It should now continue the installation successfully.

Login information

Once you have installed the system, these are the default access credentials.


  • User: admin
  • Password: openmediavault

Client (SSH, console)

  • User: root
  • Password: <set during installation>