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1721 router in rommon 1>

raysm
Level 1
Level 1

how can I start a router (cisco1721) which is in rommon 1> mode

2 Replies 2

Prashanth Krishnappa
Cisco Employee
Cisco Employee

Check to see if there is any valid image and if you have one, boot from it. Here is a capture of me doing it in a lab router

rommon 1 > dir flash:

File size Checksum File name

9621520 bytes (0x92d010) 0xd7a3 c1700-bnr2sy7-mz.quick

7929904 bytes (0x790030) 0xeb47 c1700-sy7-mz.122-15.T14

12530724 bytes (0xbf3424) 0xb5f3 c1700-k9o3sy7-mz.123-8.T4.bin

rommon 2 > boot flash:c1700-sy7-mz.122-15.T14

program load complete, entry point: 0x80008000, size: 0x78ff3c

Self decompressing the image : ##########################################

If you do not have a valid image in flash, you will need to XMODEM it.

Kevin Dorrell
Level 10
Level 10

If you do have a valid IOS in flash, boot from it as Prashanth says, then check that your config register is 0x2102, and that any boot system command you have in your configuration is valid. If you have to change the boot system flash command to match the file you have, make sure you save the config (copy run start) before you reboot.

Kevin Dorrell

Luxembourg