Upgrade And Downgrade Instructions For Junos Os Release 10.4 For M Series, Mx Series, And T Series Routers; Basic Procedure For Upgrading To Release 10.4 - Juniper JUNOS OS 10.4 - RELEASE NOTES REV 6 Release Note

Upgrade and Downgrade Instructions for Junos OS Release 10.4 for M Series, MX Series, and T Series Routers

Upgrade and Downgrade Instructions for Junos OS Release 10.4 for M Series, MX Series, and T
Series Routers
Copyright © 2011, Juniper Networks, Inc.
Upgrade and Downgrade Instructions for Junos OS Release 10.4 for M Series, MX Series,
and T Series Routers on page 83
This section discusses the following topics:
Basic Procedure for Upgrading to Release 10.4 on page 83
Upgrading a Router with Redundant Routing Engines on page 86
Upgrading Juniper Network Routers Running Draft-Rosen Multicast VPN to Junos OS
Release 10.1 on page 86
Upgrading the Software for a Routing Matrix on page 88
Upgrading Using ISSU on page 89
Upgrading from Junos OS Release 9.2 or Earlier on a Router Enabled for Both PIM and
NSR on page 89
Upgrade Policy for Junos OS Extended End-Of-Life Releases on page 90
Downgrade from Release 10.4 on page 91

Basic Procedure for Upgrading to Release 10.4

In order to upgrade to Junos OS 10.0 or later, you must be running Junos OS 9.0S2, 9.1S1,
9.2R4, 9.3R3, 9.4R3, 9.5R1, or later minor versions, or you must specify the no-validate
option on the
request system software install
When upgrading or downgrading the Junos OS, always use the
packages (such as the
jbundle
support representative. For information about the contents of the
details of the installation process, see the Junos OS Installation and Upgrade Guide.
NOTE: With Junos OS Release 9.0 and later, the compact flash disk memory
requirement for Junos OS is 1 GB. For M7i and M10i routers with only 256 MB
memory, see the Customer Support Center JTAC Technical Bulletin
PSN-2007-10-001 at
https://www.juniper.net/alerts/viewalert.jsp?txtAlertNumber=
PSN-2007-10-001&actionBtn=Search
command.
package) only when so instructed by a Juniper Networks
.
package. Use other
jinstall
jinstall package and
83