08-08-2021 02:50 PM
Hello, after factory reset of device, we got stuck in rommon.
System Bootstrap, Version 16.12(2r), RELEASE SOFTWARE
Copyright (c) 1994-2020 by cisco Systems, Inc.
Current image running: Boot ROM0
Last reset cause: LocalSoft
C1111-8P platform with 4194304 Kbytes of main memory
........
no valid BOOT image found
Final autoboot attempt from default boot device...
media drive bootflash: not present
........
autoboot: boot failed, restarting...
Resetting .......
It looks like the router has during factory reset erased also boot image.
Thanks
Solved! Go to Solution.
08-10-2021 12:41 AM - edited 08-10-2021 01:20 AM
Make sure you get Lower size of USB Like 4GB or 8GB and do FAT format and try.
First check you can able to view USB content
dir usb1: ( depends on the number)
boot usb1:image.bin try to boot, once it boot
#copy usb1:image.bin to flash:image.bin (this is exmaple only replace image name with correct one)
still not working, post complete console output for us to understand what is wrong ?
08-08-2021 03:33 PM
here is the procedure to boot from USB :
the USB need to be format as below steps :
08-08-2021 03:47 PM
@00u1f5jxnxfS1BeAV5d7 wrote:
Hello, after factory reset of device, we got stuck in rommon.
How did you perform a factory reset? Did you erase the config only or used the command "factory-reset all"?
If the the command was not used, then post the complete output to the command "dir".
08-08-2021 10:32 PM
08-08-2021 10:34 PM - edited 08-08-2021 10:42 PM
Copy the firmware into the router via a USB stick.
Force the router to boot the IOS: boot bootflash:filename.bin
After the router boots the firmware, unpack it in Install Mode.
Cisco ISR & ASR 1k Routers: IOS-XE/Firmware Upgrade (Install Mode)
08-09-2021 01:19 AM
factory-reset all ( all does erase including IOS)
I have suggestest above some steps in short, with provceedure or follow @Leo Laohoo document can able to recover from Loss of image to working devicve.
08-09-2021 02:25 PM
08-09-2021 03:27 PM
If "bootflash:" is not allowed, try "boot flash:filename.bin".
08-09-2021 11:01 PM - edited 08-10-2021 12:08 AM
Little progres.
After command "boot usb0:filename.bin" i get this message "error file system
protocol not found on device (unsupported)"
USB device is fomrated as Logical FAT16
EDIT!!!
After i found old 1GB stick i was able to boot from USB!!!
I Tried 12different USB sticks and only one has worked!
THANKS!!!!
08-10-2021 01:00 AM - edited 08-10-2021 01:02 AM
Samsung Bar 16 Gb (picture above) and Toshiba SA03 (16Gb) works for me.
Sadly, Samsung Bar 16 Gb is already EoS.
08-10-2021 12:41 AM - edited 08-10-2021 01:20 AM
Make sure you get Lower size of USB Like 4GB or 8GB and do FAT format and try.
First check you can able to view USB content
dir usb1: ( depends on the number)
boot usb1:image.bin try to boot, once it boot
#copy usb1:image.bin to flash:image.bin (this is exmaple only replace image name with correct one)
still not working, post complete console output for us to understand what is wrong ?
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