Software Maintenance Methods - H3C MSR 30-20 ROUTER Installation Manual

The configuration files for system boot can be type M, B and default configuration file of type N, but
not non-default configuration file of type N (that is, neither M nor B).
You can modify the file name of a configuration file in CF card using the command after it boots.
You cannot modify the type of the default configuration file, but you can modify the file type of type
M/B and N configuration files in the BootROM menu or using commands after the application
program boots.
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.
The file name cannot be longer than 64 characters (including drive letter and a string terminator. If
the drive letter is "CF: /", the file name can be at most [ 64-1-4 ] = 59 characters in length; or, errors
will occur in file operation. Typically, the file name is recommended to be not more than 16
characters.
The extension ASCII characters (ASCII>=128) and invisible characters (ASCII<33) cannot be
included in the file name.
The following characters cannot be included in the file name: ", ', ?, \, space, *, |, <, /, :, >, ~.
The character "." can be included in the file name, but cannot be the first or last character of the file
name. Two consecutive "."s are not allowed.

Software Maintenance Methods

1) Upgrade BootROM and application program using XModem protocol through serial port.
2) Upgrade application program from TFTP/FTP server through Ethernet interface in BootROM.
3) Upload/download application program and configuration file from TFTP/FTP server via command
lines.
BootROM program is upgraded through binding with the Comware version. You do not need to
upgrade it separately. The system automatically upgrades BootROM to be the latest version while
upgrading Comware.
Check the current version of BootROM and application program before upgrading. For the
association between Comware version and BootROM program, see the corresponding Release
Notes.
5-3