I have been following the process documented by @knudsen in the following thread: https://forum.synology.com/enu/viewtopic.php?f=39&t=46450
To this end I have updated /etc.updates/VERSION to read like this:
Code: Select all
...and the Update and Restore page in Control Panel now indicates the system is 'version 5.2 (null) 5644' - as expected
I have changed the NIC MTU to 1500 and disabled all firewalls and AV on the PC from which I am serving the update.
I then invoked a Manual DSM Update and selected DSM_DS414slim_5967.pat for the upgrade.
The upgrade begins OK but then bombs-out with the error "the certificate of the .pat file could not be verified"
The DS414Slim runs on a single core Marvell Armada 370 88F6707, so I don't think it is compatible with the boot-loader mod described at http://www.synology-forum.de/showthread.html?80481-Downgrade-6-1-beta-6-0-x&p=668623&viewfull=1#post668623
Would anyone be able to point me in the right direction on this please? I may have missed something obvious or simply not have read enough posts to find the critical thing I need to change in my config to make it work...
Thanks in advance