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Upgrading and Rebooting Only One Routing Engine

When you issue the request system software in-service-upgrade command with the no-old-master-upgrade option, the system upgrades and reboots only the new master Routing Engine. To upgrade the new backup (former master) Routing Engine, you must issue the request system software add command.

To perform a unified ISSU using the request system software in-service-upgrade package-name no-old-master-upgrade commands, complete the following steps:

Download the software package from the Juniper Networks Support Web site, http://www.juniper.net/support/. Choose the Canada and U.S., Worldwide, or JUNOS-FIPS edition. Place the package on a local server. To download the package, you must have a service contract and an access account. If you do not have an access account, complete the registration form at the Juniper Networks Web site: https://www.juniper.net/registration/Register.jsp.
Copy the package to the router. We recommend that you copy it to the /var/tmp directory, which is a large file system on the hard disk.
user@host>file copy ftp://username:prompt@ftp.hostname.net/filename/var/tmp/filename

To verify the current software version running on both Routing Engines, on the master Routing Engine issue the show version invoke-on all-routing-engines command. The following example shows that both Routing Engines are running an image of JUNOS 9.0 software that was built on December 11, 2007:

{backup}

user@host> show version invoke-on all-routing-engines

re0:
--------------------------------------------------------------------------
Hostname: host
Model: m320
JUNOS Base OS boot [9.0-20071211.2]
JUNOS Base OS Software Suite 9.0-20071211.2]
JUNOS Kernel Software Suite [9.0-20071211.2]
JUNOS Crypto Software Suite [9.0-20071211.2]
JUNOS Packet Forwarding Engine Support (M/T Common) [9.0-20071211.2]
JUNOS Packet Forwarding Engine Support (M320) [9.0-20071211.2]
JUNOS Online Documentation [9.0-20071211.2]
JUNOS Routing Software Suite [9.0-20071211.2]

re1:
--------------------------------------------------------------------------
Hostname: host1
Model: m320
JUNOS Base OS boot [9.0-20071211.2]
JUNOS Base OS Software Suite [9.0-20071211.2]
JUNOS Kernel Software Suite [9.0-20071211.20]
JUNOS Crypto Software Suite [9.0-20071211.2]
JUNOS Packet Forwarding Engine Support (M/T Common) [9.0-20071211.2]
JUNOS Packet Forwarding Engine Support (M320) [9.0-20071211.2]
JUNOS Online Documentation [9.0-20071211.2]
JUNOS Routing Software Suite [9.0-20071211.2]

On the master Routing Engine, issue the request system software in-service-upgrade package-name no-old-master-upgrade command. The following example upgrades the current version to an image of JUNOS 9.0 software that was built on January 16, 2008:

{master}

user@host> request system software in-service-upgrade
/var/tmp/jinstall-9.0-20080116.2-domestic-signed.tgz no-old-master-upgrade

ISSU: Validating Image
ISSU: Preparing Backup RE
Pushing bundle to re1
Checking compatibility with configuration
Initializing...
Using jbase-9.0-20080116.2
Verified manifest signed by PackageProduction_9_0_0
Using /var/tmp/jinstall-9.0-20080116.2-domestic-signed.tgz
Verified jinstall-9.0-20080116.2-domestic.tgz signed by PackageProduction_9_0_0
Using jinstall-9.0-20080116.2-domestic.tgz
Using jbundle-9.0-20080116.2-domestic.tgz
Checking jbundle requirements on /
Using jbase-9.0-20080116.2.tgz
Verified manifest signed by PackageProduction_9_0_0
Using jkernel-9.0-20080116.2.tgz
Verified manifest signed by PackageProduction_9_0_0
Using jcrypto-9.0-20080116.2.tgz
Verified manifest signed by PackageProduction_9_0_0
Using jpfe-9.0-20080116.2.tgz
Using jdocs-9.0-20080116.2.tgz
Verified manifest signed by PackageProduction_9_0_0
Using jroute-9.0-20080116.2.tgz
Verified manifest signed by PackageProduction_9_0_0
Hardware Database regeneration succeeded
Validating against /config/juniper.conf.gz
mgd: commit complete
Validation succeeded
Installing package '/var/tmp/jinstall-9.0-20080116.2-domestic-signed.tgz' ...
Verified jinstall-9.0-20080116.2-domestic.tgz signed by PackageProduction_9_0_0
Adding jinstall...
Verified manifest signed by PackageProduction_9_0_0

WARNING:     This package will load JUNOS 9.0-20080116.2 software.
WARNING:     It will save JUNOS configuration files, and SSH keys
WARNING:     (if configured), but erase all other files and information
WARNING:     stored on this machine.  It will attempt to preserve dumps
WARNING:     and log files, but this can not be guaranteed.  This is the
WARNING:     pre-installation stage and all the software is loaded when
WARNING:     you reboot the system.

Saving the config files ...
NOTICE: uncommitted changes have been saved in /var/db/config/juniper.conf.pre-install
Installing the bootstrap installer ...

WARNING:     A REBOOT IS REQUIRED TO LOAD THIS SOFTWARE CORRECTLY. Use the
WARNING:     'request system reboot' command when software installation is
WARNING:     complete. To abort the installation, do not reboot your system,
WARNING:     instead use the 'request system software delete jinstall'
WARNING:     command as soon as this operation completes.

Saving package file in /var/sw/pkg/jinstall-9.0-20080116.2-domestic-signed.tgz ...
Saving state for rollback ...
Backup upgrade done
Rebooting Backup RE

Rebooting re1
ISSU: Backup RE Prepare Done
Waiting for Backup RE reboot
GRES operational
Initiating Chassis In-Service-Upgrade
Chassis ISSU started
ISSU: Backup RE Prepare Done
ISSU: Preparing Daemons
ISSU: Daemons Ready for ISSU
ISSU: Starting Upgrade for FRUs
ISSU: Preparing for Switchover
ISSU: Ready for Switchover
Checking In-Service-Upgrade status
  Item           Status                  Reason
  FPC 0          Online (ISSU)        
  FPC 1          Online (ISSU)        
  FPC 2          Online (ISSU)        
  FPC 3          Online (ISSU)        
  FPC 5          Online (ISSU)        
Resolving mastership...
Complete. The other routing engine becomes the master.
ISSU: RE switchover Done
Skipping Old Master Upgrade
ISSU: IDLE

{backup}
user@host

You are now logged into the new backup (old master Routing Engine). If you want to install the new software version on the new backup Routing Engine, issue the request system software add /var/tmp/jinstall-9.0-20080116.2-domestic-signed.tgz command.

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