46 | System Boot
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Command Purpose 
help
or
?
• Enter help or? to display a list of available commands and syntax.
• Enter syntax help to display syntax information and variable descriptions.
boot change {primary | 
secondary | default}
If your configuration displays no pre-configured operating system boot 
parameters, use the boot change command to edit appropriate fields. 
• The primary operating system boot parameters are used in the first 
attempt to boot the system. 
• The secondary operating system boot parameters are used if the primary 
operating system boot selection is not available. 
• The default operating system boot parameters are used if the secondary 
operating system boot parameter selection is not available. The default 
parameters always reside on the internal flash device (flash:).
  NOTE: These parameters, as well as other boot parameters, can be 
modified in the run-time mode. 
When you enter the boot change command, you are prompted for a 
response. 
• Enter a new parameter or press the ENTER key (carriage return) to accept the 
default parameter. 
• Enter  .  (period) to clear a field.
• Enter  -  (dash) to edit a field above the current cursor position.
  NOTE: When you enter a new parameter that extends beyond 80 
characters, you cannot use the BACKSPACE key to correct any mistakes. If you 
make a mistake, you must re-enter the parameter.
BOOT_USER # boot change primary  
'.' = clear field;  '-' = go to previous field
boot device                    : flash 
file name                      : /FTOS-CB-1.1.x.y.bin 
BOOT_USER # boot change default
'.' = clear field;  '-' = go to previous field
boot device                    : flash 
file name                      : /FTOS-CB-1.1.x.y.bin 
BOOT_USER #