Downgrade DSM7 to DSM6



Enable SSH


Download Putty. Choose SSH connection. Use port 22 and IP of your NAS.


Login using your user name and password.


 


Edit a file of DSM version


Use ESC key to switch to command mode and key I for edit mode. Save it in command mode using :wq!


Find your NAS


 


Start installation process


Choose to keep or not the configuration and files.


 


Select DSM file


 


Allow it to install


 


Error that it doesn’t support this OS.


 


Connect via Putty as a root this time


 

[root] with a password: 101-0101


Edit a version file


 


Save it with command :wq


Select DSM 6 OS file


Allow it to install


 


 


Reboot the NAS


 


You now have DSM6 installed.


 


Enjoy!


 


 


 


 


 


 


 


 


 

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One thought on “Downgrade DSM7 to DSM6

  1. Since I downgraded to 6.2.4 I cant get some of the packages to work or install. I get a vapid send server error of boot up. Any suggestions