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[Junos] Explanation for software upgrade failure scenario from EOL versions

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Article ID: KB29750 KB Last Updated: 18 Jun 2015Version: 1.0
Summary:

The following errors might appear during a Junos OS software upgrade from an end-of-life (EOL) version:

hieupq@HKG_IGW_MX960_01_RE1> ...ll-10.4S15.1-domestic-signed.tgz
WARNING: Package jinstall-10.4S15.1-domestic-signed is not compatible with this memory size.
WARNING: Please restrict memory by adding the following to /boot/loader.conf :
WARNING: hw.physmem=2G
WARNING: Package jinstall-10.4S15.1-domestic-signed is not compatible with this hardware.
WARNING: Please install a package with version 8.2 or higher.

In this example, the upgrade was done from Junos OS Release 9.3R2 to 10.4S15.

Symptoms:

This article provides information when troubleshooting this problem as the warning messages might be confusing in regards to the cause of the issue.

Cause:

These warning messages are the result of not following PSN-2010-02-668 (TSB15173) during an upgrade.

See TSB15173 - Upgrading to Junos 10.x may fail.

Solution:

To upgrade to Junos OS Release 10.0 or later, you must already be running Junos OS Release 8.5S4, 9.0S2, 9.1S1, 9.2R4, 9.3R3, 9.4R3, 9.5R1, or a more recent maintenance or service release.

To stop these messages, the upgrade must be done in one of the releases mentioned above (and in PSN-2010-02-668/TSB15173).  For example, if the upgrade is tried from Release 9.3R2 to 10.4S15, the issue will occur until the router is upgraded first to 9.3R3 or a later release. Doing this will stop the warning messages and bypass the validation error.

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