Field Notice: FN - 70495 - ASR1001-X ROMMON Downgraded to a Version Earlier Than 16.2(1r) or Cisco IOS XE Downgraded to a Version Earlier Than Cisco IOS XE 3.16.2/3.15.2 Will Fail to Boot - Software Upgrade Recommended

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Updated:January 22, 2020

Document ID:FN70495

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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	21-Jan-20	Initial Release

Products Affected

Affected Product ID	Comments
ASR1000-X
ASR1000-X=
ASR1001X-10G-K9
ASR1001X-20G-K9
ASR1001X-5G-K9
ASR1001X-2.5G-K9
ASR1001-X=	Part Alternate
ASR1001-X
ASR1001X-20G-SEC
ASR1001X-10G-VPN
ASR1001X-5G-SEC
ASR1001X-5G-VPN
ASR1001X-2.5G-VPN
ASR1001X-10G-SEC
ASR1001X-2.5G-SEC
ASR1001X-20G-VPN
ASR1001X-AIS-AX
ASR1001X-AES-AX
C1-ASR1001-X/K9
ASR1001-X-DNA

Defect Information

Defect ID	Headline
CSCvr94909	New minimum ROMMON and IOS XE software for ASR1001-X

Problem Description

An ASR1001-X ROM monitor (ROMMON) downgraded to a version earlier than Version 16.2(1r) or Cisco IOS^® XE downgraded to a version earlier than Cisco IOS XE Software Release 3.16.2/3.15.2 will fail to boot. This issue only impacts ASR1001-X routers ordered after 2020-01-31. Products ordered prior to 2020-01-31 are not impacted.

Background

ASR1001-X routers ordered after 2020-01-31 will ship with a new CPU that requires a new minimum ROMMON version and Cisco IOS XE software release. These routers will not be able to boot with ROMMON versions earlier than Version 16.2(1r) or Cisco IOS XE software releases earlier than Cisco IOS XE Software Release 3.16.2/3.15.2.

Problem Symptom

The router will fail to boot and will display this message:

R0/0: %BOOT-0-DRV_LOADFAIL: Failed to load driver coretemp ( FATAL: Error inserting coretemp (/lib/modules/2.6.32.59/kernel/drivers/hwmon/coretemp.ko): No such device )

Workaround/Solution

A software upgrade is required. ASR1001-X routers ordered after 2020-01-31 need to upgrade to, at a minimum, these releases:

ROMMON Version 16.2(1r)
Cisco IOS XE Software Release 3.16.2/3.15.2

For More Information

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