NEC Express5800/ftServer Administrator's Manual page 36

Updating the System BIOS
The preceding example displays a BIOS version number of 20.0 for the top CPU-I/O
enclosure (see
Express5800/ftServer BIOS updates are image files that you must transfer from
removable media or download from a network-accessible archive.
Take care when updating firmware. It is a necessary failover characteristic for the
CPU-I/O enclosures to be paired in duplexed operation. On system boot and before
duplexing, if the ftServer system detects differing firmware between the system CPU
elements, the firmware from the CPU-I/O enclosure that is booting is replicated to the
other enclosure automatically, allowing the enclosures to synchronize.
N O T E
If an ftServer system boots from the system enclosure
that has not been upgraded, the upgraded system
firmware will be overwritten with older firmware in order to
synchronize to duplex. This defeats the intended upgrade.
!
C A U T I O N C A U T I O N
Do not interrupt a BIOS firmware update while a burn (that
is, a write to EEPROM) is in progress. Interrupting power
to a CPU-I/O enclosure during a burn can result in
EEPROM damage that prevents it from storing the
firmware successfully. Correcting this problem may
require that you obtain a replacement CPU-I/O enclosure.
Read this entire procedure to review your options before beginning.
To update the system BIOS
1. Insert the ExpressBuilder for Linux CD in the CD-ROM drive in the CPU-I/O
enclosure whose power button is lit.
2. Log on to the system as root.
3. Mount the CD-ROM drive by typing the following command:
# mount /media/cdrecorder
3-2 Express5800/ftServer: System Administrator's Guide for the Linux Operating System
Table 7-1 for a list of system device IDs).