You can install using a Serial cable. In RouterBOOT menu, go to Firmware Upgrade >> Serial (Xmodem), then, in telnet, select "Send File" >> Xmodem >> Point to the .npk location.i have just written to mikrotik for this request some years ago...
i have lost an rb800 for this... ether 1 damaged , deleted routeros and no net install...
Are you absolutely sure about this? I could swear that "Firmware Upgrade" over serial is for RouterBOOT upgrades (FWF file) only. I don't think it can accept a system NPK to install to the NAND flash, but I confess I have never actually tried this. If it can, it is an undocumented feature (http://wiki.mikrotik.com/wiki/Manual:RouterBOOT), and I would honestly be shocked if this was possible.You can install using a Serial cable. In RouterBOOT menu, go to Firmware Upgrade >> Serial (Xmodem), then, in telnet, select "Send File" >> Xmodem >> Point to the .npk location.
enable the netinstall on all ports for devices having more than one ethernet port. In case only one port at once can be in netinstall mode, let it be the first port that reports link-up status just before the netinstall can begin (the first physically connected port).
Reason: Sometimes the port that is the only one usable port of the device to perform netinstall is broken so there is no other option how to make netinstall (mainly for devices without serial port).
I expect that it could be done by small routerboot modification. Hopefully.
Thank you in advance.