Help with Cisco 1921 router

[mjcurtis]

Hi there,

I bought a Cisco 1921 router off of eBay, and I'm having trouble preparing for the initial configuration.

Here's what I receive after connecting to the console port:

"mcurtis@MCURTIS-VHRYWFGF0V ~ % screen /dev/cu.usbserial* 9600

open(): Open Error = -1

usbflash1: not present

System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2012 by cisco Systems, Inc.

Total memory size = 512 MB

CISCO1921/K9 platform with 524288 Kbytes of main memory

Main memory is configured to 64 bit mode with ECC disabled

Readonly ROMMON initialized

open(): Open Error = -1

usbflash0: not present

System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2012 by cisco Systems, Inc.

Total memory size = 512 MB

CISCO1921/K9 platform with 524288 Kbytes of main memory

Main memory is configured to 64 bit mode with ECC disabled

Readonly ROMMON initialized

rommon 1 >"

Then, here's what I get after I try to boot from a USB:

"rommon 15 > dir usbflash1:

program load complete, entry point: 0x80903000, size: 0x4c4a0

 fnuhcd5200OpenPipe  ERROR opening PIpe CVMX 

*** TLB (Load/Fetch) Exception ***

Access address = 0x26

  PC = 0x8090f0c0, SP = 0x80902dc0, RA = 0x8090f560

  Cause Reg = 0x80000008, Status Reg = 0x504080e3

monitor: command "dir" aborted due to exception"

How do I get past this?

Thanks!

[Flavio Miranda]

Hi

 When you ran dir usbflash1: you should be able to see what is in there.  Make sure the USB has the right format and it seems it is not recommended to use USB driver bigger than 2Giga.

[mjcurtis]

Is there a specific flashdrive you recommend? I was looking at this one: https://www.amazon.com/Flash-EASTBULL-Swivel-Memory-Storage/dp/B07W54X2F3/ref=sr_1_9?crid=36MH8MUJIW4PR&keywords=1gb+flash+drive&qid=1685722782&sprefix=1gb+flash+drive%2Caps%2C67&sr=8-9

[mjcurtis]

The USB is a 32GB SanDisk in FAT format. I will try again with another flashdrive.

[Flavio Miranda]

Yeah just use a smalller one and see.

[mjcurtis]

Got this after today after trying with a 1GB flashdrive

rommon 6 > dir usbflash1:

program load complete, entry point: 0x80903000, size: 0x4c4a0

fnuhcd5200OpenPipe  ERROR opening PIpe CVMX

*** TLB (Load/Fetch) Exception ***

Access address = 0x26

  PC = 0x8090f0c0, SP = 0x80902dc0, RA = 0x8090f560

  Cause Reg = 0x80000008, Status Reg = 0x504080e3

monitor: command "dir" aborted due to exception