Field Notice: FN - 70223 - ROMMON Downgraded to a Version Earlier Than 16.2(1r) on ASR1001-X Routers with System Version V04 or Later Causes a ROMMON “media drive bootflash: not present” Error - Workaround Provided

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Updated:June 29, 2018
Document ID:FN70223

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Publish Date Comments
1.0
28-Jun-18
Initial Release

Products Affected

Affected Product ID Comments
ASR1001X-20G-K9
ASR1001X-10G-K9
ASR1001X-5G-K9
ASR1001X-2.5G-K9
ASR1001-X=
ASR1001-X
ASR1001X-10G-VPN
ASR1001X-5G-SEC
ASR1001X-5G-VPN
ASR1001X-2.5G-VPN
ASR1001X-20G-VPN
C1-ASR1001-X/K9
ASR1001X-10G-K9-RF
ASR1001X-10G-SEC
ASR1001X-20G-K9-RF
ASR1001X-20G-SEC
ASR1001X-2.5G-K9
ASR1001X-2.5GK9-RF
ASR1001X-2.5G-SEC
ASR1001X-AES-AX
ASR1001X-AIS-AX
ASR1001X-AIS-AX-RF
ASR1001-X-RF

Defect Information

Defect ID Headline
CSCvj89868 ASR1001-X systems version V04 or above require minimum ROMMON level, to support bootflash

Problem Description

A downgrade of the ROM monitor (ROMMON) on an ASR1001-X router with System Version V04 or later to a ROMMON version earlier than Version 16.2(1r) causes a ROMMON “media drive bootflash: not present” error.

ASR-1001-X routers with System Version V03 or earlier do NOT have this minimum ROMMON requirement and are NOT impacted by this field notice.

This is a proactive field notice as shipments of ASR1001-X routers with System Version V04 are expected to begin around October 01, 2018.

Background

Due to a Cisco supplier discontinuing a component, Cisco will use a new component which requires a new ROMMON version. If a customer tries to downgrade the ROMMON to a version earlier than 16.2(1r) on ASR1001-X routers with System Version V04 or later it might result in a ROMMON “media drive bootflash: not present” error.

Problem Symptom

A downgrade of the ROMMON on an ASR1001-X router with System Version V04 or later to a ROMMON version earlier than Version 16.2(1r) causes a ROMMON “media drive bootflash: not present” error. Shipments of ASR1001-X routers with System Version V04 are expected to begin around October 01, 2018.

Workaround/Solution

Customers are advised to NOT downgrade the ROMMON to a version earlier than Version 16.2(1r) on an ASR1001-X with System Version V04 or later.

How To Identify Affected Products

In order to determine the ROMMON version that runs on the device, enter one of these commands:

From the ROMMON Prompt

rommon 1 > showmon
Current image running (0/1): Boot ROM1

System Bootstrap, Version 16.3(2r), RELEASE SOFTWARE
Copyright (c) 1994-2016  by cisco Systems, Inc.

From the Cisco IOS® Prompt

Router#show rom-monitor r0

System Bootstrap, Version 16.3(2r), RELEASE SOFTWARE
Copyright (c) 1994-2016 by cisco Systems, Inc.

Router#show platform
Chassis type: ASR1001-X

Slot                Type                  State          Insert time (ago)
---------   -------------------   --------------------   -----------------
0                ASR1001-X                  ok                00:04:08     
0/0          BUILT-IN-2T+6X1GE              ok                00:01:00     
R0               ASR1001-X              ok, active            00:04:08     
F0               ASR1001-X              ok, active            00:04:08     
P0           ASR1001-X-PWR-AC               ok                00:03:52     
P1                Unknown                ps, fail               never        
P2           ASR1001-X-FANTRAY              ok                00:03:55     

Slot           CPLD Version                   Firmware Version                       
---------   -------------------   ---------------------------------------
0                14041015                         16.3(2r)                           
R0               14041015                         16.3(2r)                           
F0               14041015                         16.3(2r)                           

Router#

Identify the Hardware Version Number

Router#show inventory
NAME: "Chassis", DESCR: "Cisco ASR1001-X Chassis"
PID: ASR1001-X         , VID: V03, SN: FXS2113Q4LE

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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