Maintenance; Software Upgrade; Os Kernel Upgrade; Configuration File - GE Digital Energy 1018959 Operating Manual

10 MAINTENANCE

10.1 SOFTWARE UPGRADE

The application software in the SNMP/Web adapter may be upgraded (please note that the upgrade
procedure can be performed only by the supervisor and by rw users). The procedure to upgrade the
software is described below:
•
Transfer the new software (gedeappXXX.bin) to the device using ftp or sftp
•
Start the upgrade by injecting the upgrade command at the console or by pressing the upgrade
button in the Upgrade web page (System section)
•
Reboot the system to complete the upgrade procedure
NOTE: Make sure to use binary transfer to upload the file (binary transfer is selected with the binary FTP
command). Particularly, the FTP client on Windows defaults to ascii transfer – ascii transfer corrupts the
binary file during upload, and the upgrade procedure fails.
Although the procedure itself may seem trivial, there is a set of advices to be considered. First of all, the
upgrade procedure has been tested to be safe. However, any interruption to the procedure (even
accidental) may cause an abnormal termination. This means that any access to the adapter may be lost
if the upgrade procedure is not completed successfully – at that stage, the only recovery mechanism is
the adapter replacement. Therefore:
•
Never power off or un-plug the device during upgrade
•
Use only GE officially released software
•
Avoid unnecessary upgrades (in line of practice, only perform upgrades when recommended to
do so by GE)

10.1.1 OS Kernel upgrade

The SNMP/Web adapters also provide a kernel upgrade facility for upgrading the OS kernel. This
procedure works similarly to the application SW upgrade, however there are a few differences:
•
Kernel binary file is to be transferred using binary FTP transfer. The actual upgrade is started by
injecting the kernel_upgrade command over the console interface.
•
In case of failures during the upgrade, the effects on the SNMP/Web adapter interface may be
even more severe. Access to the adapter may be lost, and the only recovery mechanism will be
adapter replacement
•
Once upgraded to a newer kernel version DO NOT downgrade the application SW to an earlier
SW version. This operation could cause the loss of network connectivity, and the only recovery
mechanism will be adapter replacement.

10.2 CONFIGURATION FILE

The SNMP/Web adapter settings are stored in non-volatile memory. It is possible to store the settings in
a file, download it, or even upload a new configuration file.
To store the settings in a file, inject the nvdump command at the console. This will create a gedeups.cfg
file in the FTP area. The file can then be downloaded via ftp or sftp.
Also the web interface offers access to the SNMP/Web adapter configuration: Configuration page in the
System section. The configuration is shown in a text area and it can be selected and copied to any text-
based editor.
Finally, it is also possible to upload a new configuration file. This procedure can be performed only by
the supervisor or rw users. Mind that this is not the recommended procedure to change the adapter
settings, as the device will not perform any check on the downloaded file – operation of the SNMP/Web
Modifications reserved
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Operating Manual SNMP/Web Adapter