M-series, MX-series, T-series, and TX Matrix Routing Platforms Boot Sequence

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The router attempts to boot from the storage media in the following order:

Removable media
CompactFlash card (if available)
Hard disk

Note: Do not insert the removable media during normal operations. The router does not operate normally when it is booted from the removable media.

If the router boots from an alternate boot device, the JUNOS software displays a message indicating this when you log in to the router. For example, the following message shows that the software booted from the hard disk (/dev/ad2s1a):



login: username 

Password: password  

Last login: date on terminal  



--- JUNOS 8.0 R1 built date 

---
--- NOTICE: System is running on alternate media device
(/dev/ad2s1a).

M-series, MX-series, T-series, and TX Matrix Routing Platforms Boot Sequence

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