■ An existing script file to be used on the next and every subsequent reboot using
backup mode
■ The configuration that is already running on the system
■ The factory default configuration
In addition, you can configure the system to load a different software release file on
its next reboot. Use the boot system command to do this. If you do not configure
your system with a backup release, it reverts to the release and configuration it had
before the crash.
You can use the boot backup command to specify a software release and
configuration for the system to use in case the system resets too many times in a
given period.
The boot subsystem command enables you to override the system release setting
for a given subsystem—for example, OC3.
Booting the GE-2 Line Module
The GE-2 line module can now detect whether it supports the software release installed
on the primary SRP module in an E Series router. When the GE-2 line module is
booting and it detects that it supports the software release on the SRP module, the
line module boots successfully with that software release. However, if the GE-2 line
module detects that it does not support the software release on the SRP module, the
module does not boot successfully and the following messages appear in the system
log:
ERROR 05/04/2005 06:09:05 system (slot 13): Line card failed diags in slot 13 with
status: Autoboot disabled
ERROR 05/04/2005 06:09:05 system (slot 13): board failed diagnostics
boot backup
■ Use to set the release version and the configuration to be used when the boot
logic chooses backup mode.
■ This command does not reboot the system; it configures the system for rebooting.
■ You can require the system to reboot from an existing configuration file, from
an existing local script file, or with the factory default configuration.
■ Example
host1(config)#boot backup rel_1_1_0.rel newfile.cnf
■ Use the no version of this command to remove the backup setting.
■ See boot backup.
boot config
510 ■ Configuring Your System for Booting
JUNOSe 11.1.x System Basics Configuration Guide
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