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Hi all, It is possible to get the DS412+ to boot from an external USB drive, I have done this successfully with an A-DATA C802. Normally the NAS will not boot any old USB you connect to it, regardless of whether the drive is in the front USB port or the back. It turns out the BIOS is locked to only boot a certain VID/PID (F400 for both) so even if you clone the internal USB to an external drive it will not boot. This has been a problem for me.. until now! Attached is a ChipGenius dump of the original onboard controller showing VID/PID, device vendor, device name, manufacturer, product model and device revision. This is obtained by connecting the DS412+ onboard flash to a PC using the pinout in my other post. (synology-orig-flash.png) Also attached is a dump of the original A-DATA C802 (a-data-c802-orig.png) And finally, the modified A-DATA C802 (c802-modded.png) - the DS412+ will happily boot from this with a dd'd clone of the original flash. Happily, the size of this disk is 4G, much larger than the original internal flash (128mb), so now I can work on putting a whole Debian install on the USB drive and have the DS boot it. Also attached is a tool that allows you to change USBest UT165 vendor/etc details (hwupgv1010v3.rar). I wouldn't try it on other USB sticks, verify you have a USBest UT165 with ChipGenius before proceeding. Happy hacking... hwupgv1010v3.rar
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