Guralp Systems CMG-DCM build <10,000 - Manual (Page 63)

Acquisition Modules and Platinum Firmware Platinum Firmware Upgrades
To restore defaults while upgrading from the web interface, select:
Tools → Firmware
and then click
The following screen will be displayed:
The first button, , does exactly the same as the similar button on
the previous screen. The button performs the action
described in this section.
To perform this action from the command line, invoke the upgrade script with
the argument ­­restore­defaults:
eam999 ~ # upgrade --restore-defaults
Watch the screen for any error messages and then reboot the unit to complete
the process.
Note: Certain upgrades (depending on the initial version number)
make it difficult or impossible to reboot the system via the web
interface. In these cases, the system can be rebooted from the
command line (with the reboot command) or by power-cycling.
5.4.3 Upgrade and force factory defaults
The third upgrade option effectively wipes everything (other than files on any
connected hard drive or USB drive) while installing the new firmware
revision, leaving the unit as it would be delivered. Avoid using this option if
you have made any customisations to your unit or installed any scripts. If in
doubt, please consult Güralp Systems Ltd technical support for advice before
proceeding. Conversely, if you have made changes which you believe have
adversely affected the unit but are having trouble undoing them, this option
lets you start with a clean slate.
MAN-EAM-0003 63 Issue E - February 2014