Configuration Guide System Upgrade Configuration
When user uses "copy tftp" command to download upgrade file from
tftp server to the device (master management board) and at the same
time overwrites the boot/main program, the system will check the
validity of the upgrade file downloaded (i.e., whether inappropriate
upgrade file is downloaded, or whether the upgrade file is corrupted).
Upgrading of boot/main program via other means (such as ftp,
xmodem and other file system commands) will not result in validity
check. In addition, using "copy tftp" command to overwrite the boot
image of slave board won't lead to the corresponding check as well.
Therefore, when selecting the download method, it is generally
recommended to use "copy tftp" command to overwrite the boot
image (master management board) of the device, as it is the safest
upgrade method.
TFTP only supports the transfer of files with size below 32M. If the file
size is larger than 32M, the file will have to be downloaded via FTP or
flash disk.
Download via xmodem
Xmodem download is applicable to some exceptional cases, such as the failure in
network connection. Before using xmodem download, make sure the device is linked
to console with serial line. In order to obtain faster download speed, the baud rate of
connection can be increased. At the same time, make sure the terminal software
supports xmodem transmission.
Using this method to copy upgrade file will not lead to validity check.
In addition, this method cannot be used when there are two
management boards.
Copy via flash disk
Plug the flash disk stored with RGOS program image to the USB port. Make sure the
device has found this USB apparatus.
Supported by all devices provided with USB port.
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