3Com 5000 Series Installation Manual page 64

3Com Router 5000 Family
Installation Guide
Note that:
The application images for system boot can be type M, B and S, but not type N/A. You
can store them in Flash memory, but only one for each. For example, if an M+B file
exists, it is impossible to have another M or B file. If you change the file type of another
file to B, the M+B file becomes a type M file.
You can modify the file name of an application image in Flash memory using the
command after it boots.
You cannot modify the file type of the type S application image file, but you can modify
the file type of type M/B and N/A application image files in the Boot ROM menu or using
commands after the application image boots.
Secure boot file is the last resort for system boot. You can download it in the Boot ROM
menu and must name it secure.bin. However, you cannot modify this file or change the
type of another file to S. If you change the name of the secure boot file with the rename
command after the system boots, the file is removed from Flash memory. To use the
secure boot file after that, you need to download it again.
Select <3> in Boot Menu. The console screen displays the following menu, provided
four application image files have existed in Flash memory:
M=MAIN
**************************************************************************
NO. Name
1 main.bin
2 backup.bin
3 a.bin
4 secure.bin
**************************************************************************
5 Exit to main menu
Enter your choice(1-5):
In this menu, select <3> for example to change the file type of a.bin. The console
screen displays:
Set this file as:
1.
2.
3.
Enter your choice(1-3):
To use a.bin as the main boot file, select <1> in this menu. Upon validation of the setting,
the file type of the original main boot file changes to N/A. Now, the a.bin file is the first
boot file.
4) Display applications in Flash memory.
Select <4> in Boot Menu. The console screen displays:
B=BACKUP
5988025
5985198
5988022
3
Main
Backup
Exit
3Com Corporation
S=SECURE
Size Type
M
B
987491 N/A
S
1
6-3
Chapter 6 Router Maintenance
Time
Oct/10/2002 10:10:10
Oct/10/2002 10:10:10
Oct/10/2002 10:10:10
Oct/10/2002 10:10:10