Upgrading PowerConnect Switches from Version 2.x.x.x or 3.x.x.x or
4.x.x.x or 5.x.x.x to 5.1.9.3 Firmware
Page 2
Upgrade Overview
Administrators must have access to the switch CLI via telnet, SSH or the serial port to perform the upgrade
procedure. This upgrade procedure can be followed to update modular switches (M8024k, M8024, M6220, and
M6348) via the CMC (Chassis Management Controller) interface as well.
Upgrade Switches Running Firmware v3.x.x.x or v4.x.x.x or v5.x.x.x to v5.1.9.3 Firmware
The upgrade procedure given below upgrades an individual switch or a stack of switches running firmware version
3.x.x.x or 4.x.x.x or 5.x.x.x. During this process, the switch may autonomously reboot itself such that it appears the
switch rebooted twice. This is a normal operation of the upgrade procedure. Do not interrupt switch operation
during the upgrade process as this may result in corruption of flash memory. Do not power off a switch
undergoing the upgrade process unless specifically directed to do so by the instructions.
To upgrade a switch running a 3.x.x.x or 4.x.x.x or 5.x.x.x version of firmware to the 5.1.9.3 version of firmware,
use the procedure below. An annotated upgrade example is shown following this section.
1. Back up your running configuration.
2. If using telnet or ssh to perform the upgrade procedure and if the current configuration does not contain a
non-default enable authentication method or enable password, configure an enable password and save the
configuration. Example steps to configure an enable password are shown below:
console# configure
console(config)# enable password <XXXXXX>
console(config)# exit
console# copy running-config startup-config
NOTE: It is required that either a non-default privileged exec (enable)
access method or an enable password be saved in the startup config in
order to access privileged exec (enable) mode after the firmware upgrade.
The 5.1.9.3 firmware emulates industry standard behavior for privileged
exec mode authentication over SSH and telnet. In 5.1.9.3, the default
authentication list for telnet and SSH is enableNetList, which requires an
enable password. If the startup configuration being upgraded does not
have a non-default enable authentication method defined (e.g. TACACS),
setting an enable password allows one to access privileged exec (enable)
mode after the firmware upgrade.
NOTE: A TFTP server must be on the network and the switch software
must be accessible to the TFTP server before attempting to download
the switch software by TFTP.
NOTE: The following TFTP server may be used if you do not have one:
http://tftpd32.jounin.net/tftpd32_download.html
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