Boot Options
Basic System Configuration Guide 215
If persist is enabled and the admin save url command is executed with an FTP path used as the url 
parameter, two FTP sessions simultaneously open to the FTP server. The FTP server must be 
configured to allow multiple sessions from the same login, otherwise, the configuration and index files 
will not be saved correctly. 
Notes: 
• Persistency files (.ndx) are saved on the same disk as the configuration files and the image 
files. 
• When an operator sets the location for the persistency file, the system will check to ensure 
that the disk has enough free space. If this there is not enough free space, the persistency will 
not become active and a trap will be generated. Then, it is up to the operator to free adequate 
disk space. In the meantime, the system will perform a space availability check every 30 
seconds. As soon as the space is available the persistency will become active on the next (30 
second) check.
Default off
Parameters on — Create when saving the configuration.
off — Disables the system index saves between reboots.
primary-config
Syntax primary-config file-url
no primary-config
Context bof 
Description This command specifies the name and location of the primary configuration file.
The system attempts to use the configuration specified in primary-config. If the specified file cannot 
be located, the system automatically attempts to obtain the configuration from the location specified 
in secondary-config and then the tertiary-config.
If an error in the configuration file is encountered, the boot process aborts.
The no form of the command removes the primary-config configuration.
Default none
Parameters file-url — The primary configuration file location, expressed as a file URL.
Values
file-url  [local-url | remote-url] (up to 180 characters)
local-url  [cflash-id/][file-path]
remote-url [{ftp://|tftp://} login:pswd@remote-locn/][file-path]
cflash-id cf1:, cf1-A:, cf1-B:, cf2:, cf2-A:, cf2-B:, cf3:, cf3-A:, cf3-B: