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JUNOS Release 10.2 Software Installation and Upgrade Guide
For more information about upgrading your M7i or M10i router, see the Customer
Support Center JTAC Technical Bulletin PSN-2007-10-001:
https://www.juniper.net/alerts/viewalert.jsp?txtAlertNumber=PSN-2007-10-001&actionBtn=Search
Storage Media
Except for MX80 routers, the M Series, MX Series, T Series, TX Matrix, and TX Matrix
Plus routers use the following media storage devices:
On MX80 routers, the internal NAND flash devices (first
primary and secondary boot devices.
The external devices are emergency boot devices and can be used to revive a routing
platform with damaged JUNOS Software. When these external devices are attached
to the system, the router attempts to boot from these devices before it boots from
the internal CompactFlash drive, the hard drive, or internal flash device.
When booting from the external emergency boot disk, the router requests a boot
acknowledgment from you on the console interface. If you enter yes, the external
media repartitions the internal primary drive and reloads the JUNOS Software onto
that drive. When the loading is complete, the routing platform requests that you
remove the external media and reboot the system. Once the reboot is complete, you
must perform an initial configuration of the router before it can be used on your
network.
Routing Engines and Storage Media Names (M Series, MX Series, T Series, TX Matrix, and
TX Matrix Plus Routers)
Table 3 on page 17 specifies the storage media names by Routing Engine. The storage
media device names are displayed when the router boots.
16
Routing Engines and Storage Media Names (M Series, MX Series, T Series, TX Matrix, and TX Matrix Plus Routers)
CompactFlash card—The CompactFlash card is typically the primary storage
device. M7i and M10i routers are not usually delivered from the factory with the
CompactFlash card installed. In this case, the hard drive is the primary and only
boot device. The M7i and M10i routers can be upgraded to include the
CompactFlash card.
Hard drive or solid state drive—The hard drive is normally the secondary boot
device for M Series, MX Series, T Series, and TX Matrix routers. The TX Matrix
Plus router includes either a hard drive or a solid state drive as the secondary
boot device. When the CompactFlash card is not installed on the router, the hard
drive or the solid state drive becomes the primary boot drive. It is also used to
store system log files and diagnostic dump files.
External media storage device—Depending on the system, the external device
can be a CompactFlash card, a USB storage device, or an LS-120 floppy disk.
, then
) act as the
da0
da1
.
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