Juniper MX240 - Page 252

}
}
16. Commit the configuration to activate it on the router.
[edit]
root@# commit
17. (Optional) Configure additional properties by adding the necessary configuration
statements. Then commit the changes to activate them on the router.
[edit]
root@host# commit
18. When you have finished configuring the router, exit configuration mode.
[edit]
root@host# exit
root@host>
NOTE: To reinstall Junos OS, you boot the router from the removable media.
Do not insertthe removablemedia during normaloperations. The routerdoes
not operate normally when it is booted from the removable media.
When the router boots from the storage media (removable media, CompactFlash card,
or hard disk) it expands its search in the /config directory of the routing platform for the
followingfiles in the following order: juniper.conf (the main configuration file), rescue.conf
(the rescue configuration file), and juniper.conf.1 (the first rollback configuration file).
When the search finds the first configuration file that can be loaded properly, the file
loads and the search ends. If none of the file can be loaded properly, the routing platform
does not function properly. If the router boots from an alternate boot device, Junos OS
displays a message indication this when you log in to the router.
Related
Documentation
• Powering On an AC-Powered MX240 Router on page 200
• Powering On a DC-Powered MX240 Router with Normal Capacity Power Supplies on
page 204
Copyright © 2017, Juniper Networks, Inc.222
MX240 3D Universal Edge Router Hardware Guide