TerraMaster Forum

These forums are absolutely impossible to find stuff in - the fact the search ignores numbers is so not helpful...

That said I'm trying to update a F2-221 to TOS6. I'm currently at 5.1.67-00214. I understand I need to incrementally update to 5.1.145 first, but it fails. I then see that the / partition is at 2GB. I cannot find the procedure to update this to the larger size. Currently the array is empty and I would be fine with starting from scratch and installing TOS 6 without having to go through a lot of incremental steps.

What's the best path forward?

Please first confirm that your BIOS version meets the requirements for upgrading to TOS. The BIOS version must be between MAPL0304V16 and MAPL0304V22, or between MAPL0303V16 and MAPL0303V22 in order to upgrade to TOS 6.
If your BIOS version meets the upgrade requirements and you do not need to back up the data on your hard drive, please refer to this post to create a TOS 6 boot system: viewtopic.php?t=6433.
Once completed, follow Method B from this post to directly install TOS 6: viewtopic.php?t=423.

I'm at MAPL0304V22

Hello! The BIOS version of the F2-221 product is MAPL0304V22, which supports upgrading to the TOS 6 system. Has your device already completed the update to the TOS 6 version?

docwednesday wrote: ↑10 Jan 2026, 04:40

I'm sorry, but your current situation does not allow for a direct upgrade to TOS 6.

If you wish to upgrade to TOS 6, you will need to first back up all your data and format the disks, then proceed to directly install the TOS 6 system. Before installation, you must remove the old USB drive and create a USB boot drive for installing TOS 6. Please refer to the following operational guide:

viewtopic.php?t=6433