Chapter 1 Setting Up the ACE
Modifying the Boot Configuration
1-36
Cisco 4700 Series Application Control Engine Appliance Administration Guide
OL-11157-01
•
0x1
—Upon reboot, the ACE boots the system image identified in the BOOT
environment variable (see the
“Setting the BOOT Environment Variable”
section). The BOOT environment variable specifies a list of image files on
various devices from which the ACE can boot at startup. If the ACE
encounters an error or if the image is not valid, it will try the second image
(if one is specified). Upon startup, the ACE loads the startup-configuration
file stored in the Flash memory (nonvolatile memory) to the
running-configuration file stored in RAM (volatile memory).
To set the boot field in the configuration register to automatically boot the system
image identified in the BOOT environment variable upon reboot and to load the
startup-configuration file stored in Flash memory, enter:
host1/Admin(config)#
config-register 0x1
To reset the config-register setting, enter:
host1/Admin(config)#
no config-register 0x1
Press
Esc
when the count down initiates on the GNU GRUB multiboot loader.
The following GRUB menu appears.
GNU GRUB version 0.95 (639K lower / 3144640K upper memory)
**********************************************************************
* image(c4710ace-mz.3.0.0_AB0_0.453.bin)
*
* image(c4710ace-mz.3.0.0_AB0_0.488.bin)
*
*
*
*
*
**********************************************************************
In the GRUB menu, use the arrow keys to select from the ACE images loaded in
the Flash memory. The ACE image entry is highlighted in the list.
Perform one of the following actions:
•
Press
enter
to boot the selected software version.
•
Type
e
to edit the commands before booting.
•
Type
c
to access a command line.