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The NAS OS Rescue tool is preconfigured on a USB key for Rackmount NAS OS devices and on the motherboard for Desktop NAS OS devices. In addition to installing NAS OS, it can act as a bootable rescue tool to help you troubleshoot technical problems. The NAS OS Rescue includes three recovery options:
Note for NAS OS devices shipped with NAS OS 3: The NAS OS 3 installer is available on the USB key shipped with your NAS OS device. You must download the most recent version onto the USB key before following the steps below. Running the NAS OS 3 installer on a device that runs NAS OS 4 can have unwanted consequences. See the instructions below to update the USB key.
To connect to the Installer, you will need the NAS OS device’s MAC address. Your NAS OS device has two MAC addresses, one for each LAN port (see the hardware user manual for your device). You may use either MAC address for the installer.
You have multiple options for finding the MAC address:
While not obligatory, you can connect a compatible monitor to the NAS before following the recovery steps. Doing so will help you confirm that the NAS boots from the USB key. You can also review the device's IP and MAC addresses.
The VGA signal reverts to energy saving mode within a few minutes. If the monitor appears to be receiving a signal but no image is present, try to connect a USB keyboard to one of the NAS's USB ports. Tap on one of the keys to view the NAS's VGA signal.
If you do not see the NAS OS device in Seagate Network Assistant, confirm that your NAS is:
If you still do not see your device in Seagate Network Assistant, follow the instructions below:
The included USB key allows you to boot the NAS OS device and run the NAS OS installer. However, before using the USB key, it is highly recommended that you download a more recent version of the Installer as it may have been updated since you received your NAS.
Note on download: The software that you download is not NAS OS. Rather, it is a utility to install the NAS OS Installer onto the key so that you can install or repair the NAS OS.
To update the USB key:
The NAS OS installer will attempt to repair or reset the NAS OS. To guarantee that data stored on the NAS is preserved, Seagate highly recommends that you back up all shares before moving forward with the Installer. If you cannot access the NAS OS volumes, the Rescue provides an option to retrieve data via FTP.
Following the backup (if applicable), turn the NAS off. If you have access to NAS OS, use the power icon on the upper right of the window to select Shut down. Otherwise, apply a short push to the power button.
Select an option and follow the on-screen prompts to complete the Rescue. The NAS OS Installer may perform a file system check (fsck) to determine if the device was improperly powered off or crashed, causing an inconsistent state for NAS OS. The fsck will attempt to repair or recover damaged system files.
The NAS OS Rescue will attempt to repair or reset NAS OS. To guarantee that data stored on the NAS is preserved, Seagate highly recommends that you back up all shares before moving forward with the Installer. If you cannot access the NAS volumes, the Rescue provides an option to retrieve data via FTP.
Following the backup (if applicable), turn the NAS off. If you have access to NAS OS, use the power icon on the upper right of the window to select Shutdown. Otherwise, apply a short push to the power button.
The NAS OS Rescue tool is enabled upon booting the NAS by simultaneously pushing the Recovery and power buttons. The recovery button is located on the back of the NAS within a small recessed niche. To push the recovery button, you will need a thin pointed object such as a paperclip or a small screwdriver. See your NAS OS device's hardware user manual for details.
Once it is enabled, the NAS OS Rescue prompts you for the NAS OS device's MAC address. Your NAS OS device has two MAC addresses, one for each LAN port. Check the MAC address labels on the back of your device and note one for the rescue.