Avaya B5800 User Manual Page 247

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- If a configuration file is not present, use the non-volatile memory copy unless the
reboot is as a result of a default system command.
• If the control unit booted using binary files from its non-volatile memory, it will also load
the configuration copy from that location.
- It will indicate a boot alarm (see Boot alarms below).
- It will attempt to restore the firmware file in the System SD card /primary folder using
the copy in its non-volatile memory.
- The normal boot-up process of upgrading expansion module firmware does not
occur. If the File > Advanced > Upgrade command is used, only external expansion
modules actually present in the system are listed for upgrade.
Post boot operation
During normal operation, configuration and binary files sent to the System SD card /primary
folder using Manager are also written to the non-volatile memory.
If the system has booted from its non-volatile memory due to an SD card problem, it is still
possible to upgrade the .bin file using the B5800 Branch Gateway upgrade wizard. See
System
upgrade using the System SD card on page 258 for more information.
Boot alarms
The following apply if the control unit boots up using software other than that in its System SD
primary folder:
An alarm will be shown in the System Status application. It will also generate an alarm if
the card in any slot is not compatible. These alarms are also output as SNMP, Syslog or
email alarms.
The Manager Select IP Office window will display an
icon indicating that the system is running using software other than from the System SD
card's primary folder.
The configuration can be read but will be read only. Attempting to send a configuration to
the system will cause the error message Failed to save configuration data.
(Internal error).
Bypassing the System SD card primary folder
The control unit can be forced to bypass the System SD card's primary folder and non-volatile
memory when starting. This is done by pressing the AUX button while applying power to the
control unit. This may be necessary if, following an upgrade of the B5800 Branch Gateway
system, it is determined that a roll back to the previously backed up firmware and configuration
is required. Using the AUX button should restore system operation using the backup folder
files while the installer then restores the contents of the primary folder to a previous release.
Booting from the SD cards
Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012 247
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