To configure the filename that is used to boot a secondary bootstrap image, use the boot bootstrap global configuration command. Use the no form of this command to disable booting from a secondary bootstrap image.
boot bootstrap file-url
no boot bootstrap file-url
boot bootstrap flash [filename]
no boot bootstrap flash [filename]
boot bootstrap [tftp ] filename [ip-address]
no boot bootstrap [tftp ] filename [ip-address]
file-url URL of the bootstrap image.
flash Boots the router from Flash memory.
filename (Optional withflash ) Name of the system image to boot from a network server or from Flash memory. If you omit the filename when booting from Flash memory, the router uses the first system image stored in Flash memory.
tftp (Optional) Boots the router from a system image stored on a TFTP server.
ip-address (Optional) IP address of the TFTP server on which the system image resides. If omitted, this value defaults to the IP broadcast address of 255.255.255.255.
No secondary bootstrap
Global configuration
| Release | Modification | 10.0 | The command was introduced. |
|---|
The boot bootstrap command causes the router to load a secondary bootstrap image over the network. The secondary bootstrap image then loads the specified system image file. See the appropriate hardware installation guide for details on the configuration register and secondary bootstrap filename.
Use this command when you have attempted to load a system image but have run out of memory even after compressing the system image. Secondary bootstrap allows you to load a larger system image through a smaller secondary image.
In the following example, the system image file sysimage-2 will be loaded by using a secondary bootstrap image:
boot bootstrap bootflash:sysimage-2
Printed for apswan@ctr.ap.nic.in on Wed Mar 5 22:32:57 PST 2003
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