Upgrading device software, Device software overview – H3C Technologies H3C S5120 Series Switches User Manual
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z
The system does not require any interactive information when it is executing the specified
command. If there is information for you to confirm, the system automatically inputs Y or Yes; if
characters need to be input, the system automatically inputs a default character string, or inputs an
empty character string when there is no default character string.
z
For the commands used to switch user interfaces, such as telnet, ftp, and ssh2, the commands
used to switch views, such as system-view, quit, and the commands used to modify status of a
user that is executing commands, such as super, the operation interface, command view and
status of the current user are not changed after the automatic execution function is performed.
z
If the system time is modified after the automatic execution function is configured, the scheduled
automatic execution configuration turns invalid automatically.
z
Only the last configuration takes effect if you execute the schedule job command repeatedly.
Upgrading Device Software
Device Software Overview
Device software consists of the Boot ROM program and the system boot file. After the device is
powered on, the device runs the Boot ROM program, initializes the hardware, and displays the
hardware information. Then the device runs the boot file. The boot file provides drivers and adaption for
hardware, and implements service features. The Boot ROM program and system boot file are required
for the startup and running of a device.
illustrates their relationship.
Figure 1-1 Relationship between the Boot ROM program and the system boot file
The Boot ROM program and system boot file can both be upgraded through the Boot ROM menu or
command lines. The following sections describe the upgrading through command lines. For instructions
about how to upgrade them through the Boot ROM menu, refer to the installation menu of your device.
Upgrading the Boot ROM Program Through Command Lines
Follow these steps to upgrade the Boot ROM program: