Reinstalling Cisco Ios Xr Software On Cisco Asr 9000 Series Router; Cisco Asr 9000 Series Router Router Installation Overview; Installation From A Tftp Server - Cisco ASR 9000 Series Configuration Manual

Router Recovery with ROM Monitor
• If the Cisco IOS XR software is installed in the RSP card using the TURBOBOOT variable, with disk1
• After you boot the Cisco IOS XR software, you are not allowed to add packages to anywhere other than
We recommend using disk0: as the boot device. Disk0: is pre-installed in most RSPs, which ensures that
Note
the correct disk is used to store the software packages on the entire system.
Reinstalling Cisco IOS XR Software on Cisco ASR 9000 Series
Router
Caution Reinstalling Cisco IOS XR software from ROM Monitor mode replaces the currently installed router
software and causes substantial router downtime. We recommend that you install or upgrade software
packages from the Administration EXEC mode using package installation envelope (PIE) files, as described
in the Upgrading and Managing Cisco IOS XR Software module of Cisco ASR 9000 Series Aggregation
Services Router System Management Configuration Guide.
This section includes the following topics:

Cisco ASR 9000 Series Router Router Installation Overview

When you reinstall the software from ROM Monitor mode, you can perform either of the following procedures:
• Load the Cisco IOS XR software from a vm file on a TFTP server to the RSP.
• Transfer the vm file to a local storage device and then load the Cisco IOS XR software from that storage

Installation from a TFTP Server

When you install Cisco IOS XR software from a TFTP server to the RSP, you must perform the following
tasks:
1 Back up the router configuration while still in EXEC mode.
2 Verify the sanity of the configuration file system using the cfs check command.
3 Place all RSPs in ROM Monitor mode.
4 From the ROM Monitor mode, clear BOOT and TFTP_FILE ROM Monitor environmental variables on
all RSP cards. If disk mirroring is enabled, disable disk mirroring by clearing BOOT_DEV_SEQ_OPER
and MIRROR_ENABLE ROM Monitor environment variables.
OL-30420-01
(TURBOBOOT=on,disk1), all packages are installed to disk1: and the boot device is "disk1:".
the boot-device. For example, you cannot boot the DSC to disk1: and decide to add your packages to
disk0: or vice versa.
device to the RSP.
Cisco ASR 9000 Series Aggregation Services Router ROM Monitor Configuration Guide, Release 5.1.x

Reinstalling Cisco IOS XR Software on Cisco ASR 9000 Series Router

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