H3C S7500 Series Ethernet Switches Installation Manual

Installation Manual
H3C S7500 Series Ethernet Switches Chapter 7 Software Maintenance
7-19
z An error occurs when the system boots with the primary file, so it boots with the
backup file.
z An error occurs to both the primary and backup files, so the system chooses
randomly an application file for booting.
z The system stops choosing any application file if it fails to boot with a random
application file. Then it supposes that the file system is unavailable or no correct
boot file is available.
 Note:
z If you specify only the primary file, but no backup file, the system boots with the
primary file. If the primary file is corrupted, the system randomly chooses an
application file for booting.
z If you specify only the backup file, but no primary file, the system boots with the
backup file.
z If you specify neither the primary file nor the backup file, the system randomly
chooses an application file for booting.
7.6 Loading Host Software Containing the Boot ROM File
The S7500 series support multiple types of boards and these boards use different
versions of Boot ROM. Thus, you are required to use the correct Boot ROM file when
upgrading the Boot ROM of a board. The upgrading will fail if the Boot ROM file does
not match the board.
To avoid the inconvenience caused by different Boot ROM files in upgrading, Boot
ROM files are combined into a host software file. That is, you can use this combined file
for on-line upgrade of all boards.
A Boot ROM file is named as “*.btm”, while a host software file containing Boot ROM
files is named as “*.app”.
7.6.1 Example of Upgrade Using Host Software Containing Boot ROM Files
I. Preset conditions
z The SRPU in slot 0 of the S7506 is LS81SPRG.
z The LPU in slot 3 is LS81FT48A and the LPU in slot 4 is LS82GT20. There are no
LPUs in the other slots.
z The host software containing Boot ROM files is S7506.app.
z Both online upgrading through command lines and upgrading through the Boot
menu use FTP.
1) Download the host software containing Boot ROM files to the switch using FTP.