Although there are many system hardware configurations, the minimum requirements must be met to use FreeNAS optimally.
RAM: A absolute minimum of 8GB of RAM is required to run TrueNAS. A general recommendation is to use as much RAM as possible. This is because additional features in FreeNAS may use more RAM than the minimum.
Operating system device: The TrueNAS operating system is installed to at least one device that is separate from the storage disks. The device can be an SSD or a small hard drive. Using a USB as a boot device is not recommended. The are poor quality and usually wear out quicker than an SSD or hard drive. The minimum space required to install TrueNAS is 8GB. However, it is highly recommended to have at least 16GB.
Storage disks and controllers: TrueNAS supports hot-pluggable SATA drives when AHCI is enabled in the BIOS. We recommend using Western Digital NAS disk drives as storage drives. Always make sure to use a hard drive with conventional magnetic recording (CMR) techology and avoid drives with shingled magnetic recording (SMR) technology for best results with TrueNAS and OpenZFS. A list of supported disk controllers is found here.
Network Interfaces: The Ethernet section of the FreeBSD Hardware Notes indicates which interfaces are supported by each driver. We recommend using Intel or Chelsio interfaces for best performance.
If the system that will have TrueNAS installed uses an AMD “Zen” processer, you might want to update your motherboard BIOS or change a few settings before starting the installation process. See these notes for more details.
Community members have reported a stability issue on 1st Generation AMD Ryzen processors that does not seem to exist with later generation processors.
Fixes reported by the Community are:
Community members have reported a stability issue on 2nd Generation AMD Ryzen “Zen+” processors that does not seem to exist with later generation processors.
Fixes reported by the Community are:
The latest STABLE version of TrueNAS can be downloaded from
https://www.freenas.org/download-freenas-release/. Go to the webpage
and click Download to get the TrueNAS installer
The TrueNAS installer can be run from a CD or USB stick. The method of writing the installer to a device varies between operating systems. These directions explain how to on Windows and Linux.
To run the installer from a CD, download your favorite CD burning
utility and burn the
.iso file to the CD. Then, insert the CD into
your system and boot from the CD.
To write the TrueNAS installer to a USB stick on Windows, plug the USB stick into the system and use Rufus. Win32 Image Writer has been tested as well and will write the TrueNAS installer successfully, but is unable to write to a USB stick that already contains a TrueNAS installer.
The USB stick will not be recognized by Windows after the TrueNAS installer has been written to it. If you wish to reclaim the USB stick after you are done with the installation of TrueNAS, you can use Rufus to write a “Non bootable” image, then remove and reinsert the USB stick. Alternatively, “diskpart” can be used to clean the USB stick. Take great care with diskpart, as choosing the wrong disk can wipe your Windows data.
To write the TrueNAS installer to a USB stick on Linux, plug the USB stick into the system and open a terminal. First, make sure the path of the USB stick connected is correct. There are many ways to do this. Type
lsblk -po +vendor,model
and take note of the path to the USB stick, shown in the NAME column of lsblk.
Next, use dd to write the installer to the USB stick. Type
dd status=progress if=path/to/.iso of=path/to/USB
in the CLI. If this results in a “permission denied” error, use “sudo dd” with the same parameters. Take great care with dd, as choosing the wrong “of=” device path can wipe your Linux data.
Now that the installer has been installed onto a device, it is time to install TrueNAS onto the desired system. Insert the install media and reboot or boot the system. Follow the necessary procedure to boot into the UEFI/BIOS of the motherboard.
Choose whether to boot in UEFI mode or legacy CSM/BIOS mode. When installing TrueNAS, make the matching choice for the installation. Intel plans to remove legacy CSM/BIOS support in reference code for new chipsets by 2020.
If your system supports SecureBoot, you will need to turn it off or set it to “Other OS” in order to be able to boot the install media.
Select the inserted device as the boot drive, exit, and reboot the system.
If the USB stick is not shown as a boot option, try a different USB slot, and try USB 2.0 slots. Which slots are available for boot differs from board to board.
After the system has booted into the installer, follow these steps.
Select the desired install drive.
Select Fresh Install to do a clean install of the downloaded version of TrueNAS. This will erase the contents of the selected drive!
Enter a password for the
root user to log in to the web
After following the steps to install, reboot the system and remove the install media.
Congratulations! TrueNAS is now installed.
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