I have bought an DS409 a few years ago and I felt quite disappointed not to get every update brought by DSM 5 then 6.
One easy solution would be to buy a new NAS but, to be honnest, my current one is still working fine (and I have modified it a lot).
Goal of this post will be to show how to upgrade and as well, what is the process to understand if you can upgrade.
First, you need to know what is the CPU of your NAS to install a compatible DSM, one excellent resource:
also available here if the first source stop working:
For my NAS, I found that it embed a 88f6281 (DS409 – synology_88f6281_409) and wonderful information, a newer version of the 4 slot NAS embed the same CPU (DS411j – synology_88f6281_411j).
So the solution will be to trick my NAS to believe it is a DS411j instead of a DS409.
DSM rely on the file /etc.defaults/synoinfo.conf to recognize the NAS model it is.
In these file, I have replace the model reference in the unique line:
you then just save the file, connect to the web interface and launch the update process, it will then propose to migrate to DSM V5.
In order to reach DSM V6 you will have to go through a few updates, there are milestones version you cannot skip apparently.
For the upgrade to DSM 5.2.5565, I have encountered an error while going through the installation, the solution was to provide manually the pat file of the update.
All DSM releases are available here:
you just need to download the right file, in my case it was:
Since then, I am using DSM 6.0 with no regression for my usage.
Known issues are:
- found on forum: esata not working directly
supportESATA="yes"under the line: support_s2s=”yes”
alter the line esataportcfg=”0x0″ to
- If you were connecting on SSH using root account (boooh) it will not work anymore, you should connect with your admin account you are using to connect to the webinterface (and sudo will do the rest)
if I find any other issues or tips and tricks it will be added here.