RouterBOARD 1100/AH Series User's Manual
7
Operating System Support
MikroTik RouterOS, starting from version v5, is fully compatible with RouterBOARD 1100 series embedded
boards. If your device is preinstalled with an earlier RouterOS release, please upgrade RouterOS to v4.9 or
newer.
RouterBOOT
The RouterBOOT firmware (also referred as Bootloader here) provides minimal functionality to boot an
Operating System. It supports serial console via the onboard serial port at the boot time. The loader supports
booting from the onboard NAND device and from a network server (see the respective section for details on
this protocol).
Boot Loader Configuration
Loader parameters may be configured through the onboard RS232C DB9 asynchronous serial interface. To
connect to it, use a standard null-modem cable. By default, the port is set to 115200bit/s, 8 data bits, 1 stop
bit, no parity. Note that the device also implements the hardware (RTS/CTS) flow control.
To enter the loader configuration screen, press any key (or only [Delete] key (or [Backspace] key – see the note
for the respective configurable option), depending on the actual configuration) just after the boot loader is
asking for it:
RouterBOOT booter 2.27
RouterBoard 1100
CPU frequency: 800 MHz Memory size: 512 MB
Press any key within 2 seconds to enter setup
RouterBOOT-2.27
What do you want to configure?
d - boot delay
k - boot key
s - serial console
o - boot device
r - reset configuration
e - format nand
g - upgrade firmware
i - board info
p - boot protocol
t - do memory testing
x - exit setup
your choice:
To select a menu point, press the key written at the beginning of this line. Pressing [Enter] selects the option
marked with '*'.
boot delay – how much time to wait for a key stroke while booting (1..9 seconds; 2 second by default).
boot key – which key will cause the loader to enter configuration mode during boot delay (any key | <Delete>
key only; any key by default). Note that in some serial terminal programs, it is impossible to use the [Delete]
key to enter the setup – in this case it might be possible to do this with the [Backspace] key.
serial console – to configure initial serial console bitrate (1200 | 2400 | 4800 | 9600 | 19200 | 38400 | 57600
| 115200; 115200 bps by default).
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