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Upgrade method Upgrade object
Description
Upgrading system software
through a system reboot
System software
upgrade process, and is not recommended.
Software upgrade by
installing hotfixes
System software
• Hotfix is a fast, cost-effective method to repair
software defects of a switch.
• Compared with software version upgrade, hotfix can
upgrade the software without interrupting the running
services of the switch. It can repair the software
defects of the current version without rebooting the
switch.
• The patch files match the switch model and software
version. If they are not matched, the hotfixing
operation fails.
Upgrading the Boot ROM program through a
system reboot
Follow these steps to upgrade Boot ROM:
To do… Use the command… Remarks
Enter system view system-view —
Enable the validity check function
when upgrading Boot ROM
bootrom-update security-check
enable
Optional
By default, the validity check
function is enabled at the time of
upgrading Boot ROM.
Return to user view quit —
Save the Boot ROM image to the
root directory of the Flash of the
switch by using FTP, TFTP, or other
approaches.
—
Required
For more information about FTP or
TFTP, see the chapters “FTP
configuration” and “TFTP
configuration.”
Upgrade Boot ROM on the switch
bootrom update file file-url slot
slot-number-list
Required
Available in user view.
Reboot the switch reboot [ slot slot-number ]
The slot keyword specifies the ID of
a switch. The ID can only be 1.
Available in user view.
CAUTION:
To execute the bootrom command successfully, save the Boot ROM image in the storage media’s root
directory on the switch.
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