Small Office Remote Access Switch 27
B
ASICS
Upgrading Software
R
EMOTE
S
OFTWARE
U
PGRADE
Note:
For security purposes, we recommend that you disable the TFTP Server after the upgrade
is complete.
To remotely upgrade the system, you are required to have a PC/workstation that is connected to
the system’s network. It must have the following features:
•
ability to read CDs
•
TELNET client
•
TFTP client
To perform a remote upgrade, first upgrade to the latest SSB, if required, then upgrade the OSW.
The Release Notes will indicate whether or not the SSB needs to be upgraded.
Note:
If, during a remote upgrade, the compressed file set cannot be uncompressed into the Flash
File System due to a lack of space, the compressed file set will not be deleted from the Flash
File System and the previous version of the OSW will be booted. If the OSW determines
there is a compressed file set (a file suffix of .OSW) in the Flash File System, then the
following message is logged in the system log:
OSW, <OSWFileName>, found in the Flash File System. The OSW has not been
updated from this file due to insufficient Flash File System space.
Please delete unnecessary files from the system.
It is possible that you will not have enough room in the \
SYSTEM
directory to TFTP the
upgrade file to the system. In this case:
•
Delete all files in the directory except
nex.bin
and
iop.bin
.
•
Issue a
flash reclaim
command to gain the lost space (this will destroy the backup
copy of your configuration, you will be unable to issue restore command unless you
have saved at least one set of changes).
•
If the upgrade still fails, delete the
nex.bin
and
iop.bin
and again reclaim the space.
Your upgrade should now work. IMPORTANT: Do not restart the CyberSWITCH until
the upgrade is complete.
If you are upgrading from a previous version of system software, the above message will
not be displayed. In this case, the system continually restarts, attempting to install the OSW
package each time.
R
EMOTE
U
PGRADE
OF
THE
S
ECOND
S
TAGE
B
OOT
(SSB)
WARNING:
If power is lost on the remote CyberSWITCH during this process, a local upgrade of the
SSB may be necessary before the system can again function.
To remotely upgrade the SSB, follow these steps:
1.
Telnet to the CyberSWITCH
and login as admin.
2.
Enable TFTP, the TFTP client, and the TFTP server with admin access rights (see page 28.)
