Cisco ASR 5000 Administration Manual page 10

Contents
ASR 5000 System Administration Guide, StarOS Release 21.1
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Applying Pre-existing CLI Configuration Files
Viewing Files on the Local File System
Viewing the Contents of a Local Device
Viewing CLI Configuration and boot.sys Files
Validating an Operating System File
Configuring the Boot Stack
System Boot Methods
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Viewing the Current Boot Stack
Adding a New Boot Stack Entry
Deleting a Boot Stack Entry
Network Booting Configuration Requirements
Configuring the Boot Interface
Configuring the Boot Network
Configuring Boot Network Delay Time
Configuring a Boot Nameserver
Upgrading the Operating System Software
Identifying OS Release Version and Build Number
Verify Free Space on the /flash Device
Download the Software Image from the Support Site
Transfer StarOS Image to /flash on the Chassis
Saving a Copy of the Current Configuration File
Preparing for a Software Downgrade
Downgrading from Release 12.2 to 12.0
Downgrading from Release 15.0 to 14.0
Downgrading from Release 20.0
Software Upgrade Methods
On-Line Software Upgrade
System Requirements to Support the On-line Software Upgrade Method
CLI Verification and System Preparation
Stage 1 - Soft Busy-out
Stage 2 - Stand-alone Operation
Stage 3 - Management Card Upgrade
Stage 4 - Reboot All Packet Processing Cards
Stage 5 - Return System to Normal Operation
Performing an On-line Software Upgrade
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