• For a file on an FTP server, enter ftp://
user:password@hostip/
filepath
• For a file on a TFTP server, enter tftp://
hostip/filepath
Defaults none
Command Modes CONFIGURATION
Command History
Version 7.5.1.0 Introduced on C-Series
E-Series Original command
Usage 
Information
To display these changes in the show bootvar command output, save the running 
configuration to the startup configuration (using the copy command).
Related 
Commands
show bootvar – displays the variable settings for the E-Series boot parameters.
boot system
Tell the system where to access the FTOS image used to boot the system.
C-Series, E-Series
Syntax
boot system {rpm0 | rpm1} (default | primary | secondary} file-
url
Parameters
rpm0 Enter the keyword rpm0 to configure boot parameters for RPM0.
rpm1 Enter the keyword rpm1 to configure boot parameters for RPM1.
default After entering rpm0 or rpm1, enter the keyword default to 
specify the parameters used if those specified by primary or 
secondary fail.
The default location should always be the internal flash device (flash:) 
so that you can be sure that a verified image is available there.
primary After entering rpm0 or rpm1, enter the keyword primary to 
configure the boot parameters used in the first attempt to boot FTOS.
secondary After entering rpm0 or rpm1, enter the keyword secondary to 
configure the boot parameters used if the primary operating system 
boot selection is not available.
file-url
To boot from a file:
• on the internal Flash, enter flash:// followed by the 
filename
• on an FTP server, enter ftp://
user:password@hostip/filepath
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