CCpilot XM and CrossCore XM - Software guide
Revision: 1.6
Software Guide
Date: Jun 24, 13
www.maximatecc.com
3.
Device start-up behaviour
At power on, the XM device has an internal microcontroller that monitors the power supply and
performs start-up configurations and power settings. It then supplies the main computer board
with power; from there the device execution begins, starting with the BIOS.
3.1.
BIOS
The BIOS is XM device specific BIOS, which performs the initial setup of the main processor and its
on-board peripherals. Once finished, the operating system execution takes over.
During BIOS operation different startup options can be accessed, the BIOS can for instance be used
to occasionally boot from USB attached storage media by pressing the key
F11
. If other non-
standard BIOS settings are desired, access the BIOS Settings menu by pressing the
DEL
key during
BIOS startup. BIOS settings changes should normally not be needed and can be affecting specific
functions within the system, so any changes must be careful considered before applying.
3.2.
Windows system start-up specifics
Once the Windows operating system is started, normal operating system steps are performed. The
Windows operating system is fully available as standard, with installed device drivers for all
hardware peripherals available.
3.3.
Linux system start-up specifics
The Linux operating system, an Ubuntu LTS derivate, has two start-up modes, the normal mode
and the recovery mode. In the normal mode the root file system is write protected, meaning that
any run time settings normally done by the user are discarded after a power cycle.
To be able to perform system settings, the Linux system must be restarted into recovery mode. This
is done with the shell command:
# su do r eb oo t - re sc ue . sh
This recovery mode enables the write back mode of the root file system; in this mode a user can
perform settings that are kept permanent and the system works as the standard Ubuntu system.
The device can also be started into the recovery mode directly, if a keyboard is attached. Keep the
<SHIFT>
key pressed while booting the device normally, then choose the recovery system from the
menu that appears.
The recovery system may be more error prone to file system corruption, it is recommended to limit
the use of this mode. Be careful and perform controlled shutdown and restart operations while in
recovery mode, as well as making sure the device has a steady supply power.
