Juniper MX2020 Hardware Manual page 169

Related
Documentation
Copyright © 2013, Juniper Networks, Inc.
NOTE: To reinstall the Junos OS, you boot the router from the removable
media. Do not insert the removable media during normal operations. The
router does not operate normally when it is booted from the removable media.
When the router boots from the storage media (removable media, or CompactFlash
card) it expands its search in the
files in the following order:
rescue configuration file), and
the search finds the first configuration file that can be loaded properly, the file loads and
the search ends. If none of the files can be loaded properly, the router platform does not
function properly. If the router boots from an alternate boot device, the Junos OS displays
a message indicating this when you log in to the router.
Powering On the AC-Powered MX2020 Router on page 129
Powering On the DC-Powered MX2020 Router on page 136
Grounding the MX2020 Router on page 116
Routine Maintenance Procedures for the MX2020 Router on page 148
directory of the routing platform for the following
/config
(the main configuration file),
juniper.conf
(the first rollback configuration file). When
juniper.conf.1
Chapter 10: Configuring Junos OS
(the
rescue.conf
143