About The Boot Device (Destination Disk) - Cisco ASR 9000 Series Configuration Manual
Aggregation services router
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Also See for ASR 9000 Series:
- Command reference manual (1138 pages) ,
- Routing configuration manual (702 pages) ,
- Reference manual (696 pages)
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About the Boot Device (Destination Disk)
There are four main arguments and keywords for the TURBOBOOT variable:
• on—Installs and activates the Cisco IOS XR software packages when the RSP is booted with the vm
• boot-device—Selects the destination disk for software installation.
• [format | clean]: When the clean option is selected, the Cisco IOS XR software is completely replaced,
• [nodisablebreak]: When the nodisablebreak flag is added, the installation process using the
• Each argument is separated by a comma.
Note
• The default boot device disk is disk0:.
About the Boot Device (Destination Disk)
The boot device determines the location where the Cisco IOS XR software is installed on all RSPs. The system
uses the boot-device to install the software to the other RSP card in the system. Any additional software or
software upgrades are automatically saved to the same boot device.
When you install Cisco IOS XR software using the Turboboot method in ROM Monitor mode, you must
specify a boot-device for the router. The boot device is the local disk on the RSP card where the Cisco IOS
XR software is installed.
The Cisco IOS XR package is installed on the boot device (disk0: or disk1:) and the minimal boot image
(MBI) is installed on the bootflash: device. The MBI contains the low level Cisco IOS XR drivers and
subsequently makes the full Cisco IOS XR software environment available on the router. The ROM Monitor
software loads the MBI from the bootflash: device.
• MBI is always installed on the boot device.
• On the Cisco ASR 9000 Series Router, the supported boot devices are disk0: and disk1:.
On the RSP3 card, the Cisco IOS XR software is installed directly on either disk0 or disk1.
Note
After the Cisco IOS XR software is installed to the boot device using the TURBOBOOT method, all additional
software and software upgrades are automatically installed and synchronized to that same boot device and
cannot be changed. For example:
• If the Cisco IOS XR software is installed in the RSP card using the TURBOBOOT variable, with disk0
Cisco ASR 9000 Series Aggregation Services Router ROM Monitor Configuration Guide, Release 5.1.x
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image.
but all other files on the disk are preserved, including configuration files . When the format option is
selected, the Cisco IOS XR software is completely replaced, and only the administration configuration
is preserved. All other files on the disk, including all configuration files and all user files, are deleted.
The administration configuration contains the configuration that determines default- SDR name and
inventory.
TURBOBOOT variable can be prematurely terminated by sending a break from the terminal. The default
is to ignore breaks from the terminal.
(TURBOBOOT=on,disk0), all packages are installed to disk0: and the boot device is disk0:.
Router Recovery with ROM Monitor
OL-30420-01
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