|45 Drives Knowledge Base
||KB450189 – Upgrading FreeNAS using the ISO
To perform an upgrade using this method, download the
.iso to the computer that will be used to prepare the installation media. Mount the downloaded
.iso file as virtual media within the IPMI Remote Console using the instructions in KB450190.
Insert the prepared media into the system and boot from it. After the media finishes booting into the installation menu, press
Enter to select the default option of 1 Install/Upgrade. The installer presents a screen showing all available drives.
All drives are shown, including boot drives and storage drives. Only choose boot drives when upgrading. Choosing the wrong drives to upgrade or install will cause loss of data. If unsure about which drives contain the FreeNAS® operating system, reboot and remove the install media. In the FreeNAS® GUI, useto identify the boot drives. More than one drive is shown when a mirror has been used.
Move to the drive where FreeNAS® is installed and press the
Spacebar to mark it with a star. If a mirror has been used for the operating system, mark all of the drives where the FreeNAS® operating system is installed. Press
Enter when done.
The installer recognizes earlier versions of FreeNAS® installed on the boot drive or drives and presents the message shown below:
Note: If Fresh Install is chosen, the backup of the configuration data must be restored using after booting into the new operating system.
To perform an upgrade, press
Enter to accept the default of Upgrade Install. The installer recommends installing the operating system on a disk not used for storage.
The installer unpacks the new image and displays the menu shown in the picture below. The database file that is preserved and migrated contains the FreeNAS® configuration settings.
During the reboot there can be a conversion of the previous configuration database to the new version of the database. This happens during the “Applying database schema changes” line in the
reboot cycle. This conversion can take a long time to finish, sometimes fifteen minutes or more, and can cause the system to reboot again. The system will start normally afterwards. If database errors are shown but the graphical administrative interface is accessible, go to and use the Upload Config button to upload the configuration that was saved before starting the upgrade.