K0

November 27, 2023

Created release notes for 4.1(2m).

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

April 27, 2023

Created release notes for 4.1(2l).

Following section was updated:

• Resolved Caveats

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

I0

June 27, 2022

Created release notes for 4.1(2k).

Following section was updated:

• Security Fixes

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

A1

June 2, 2022

Updated Open Caveats for 4.1(2a)

H0

May 10, 2022

Created release notes for 4.1(2j).

Following section was updated:

• Security Fixes

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

F1

January 27, 2022

Updated Security Fixes for 4.1(2g).

G0

January 17, 2022

Created release notes for 4.1(2h).

Following sections are updated:

• Resolved Caveats

• New Software Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

F0

September 16, 2021

Created release notes for 4.1(2g).

Following sections are updated:

• Resolved Caveats

• New Software Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

B2

July 22, 2021

Updated Known Behaviors and Limitations section for 4.1(2b).

E1

March 30, 2021

Updated Resolved Caveats for 4.1(2f).

E0

February 16, 2021

Created release notes for 4.1(2f).

Following sections are updated:

• Resolved Caveats

• Security Fixes

• New Software Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

D1

February 01, 2021

Added Downgrade Limitation for Cisco UCS C125 M5 Servers.

D0

January 19, 2021

Created release notes for 4.1(2e).

Following sections are updated:

• New Software Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

C0

December 01, 2020

Created release notes for 4.1(2d).

Following sections are updated:

• New Software Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

B1

October 29, 2020

B0

October 21, 2020

Created release notes for 4.1(2b).

Following sections are updated:

• Deprecation Notice

• Open Caveats

• Resolved Caveats

• New Software Features in Release 4.1

• New Hardware Features in Release 4.1

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

A0

July 30, 2020

Created release notes for 4.1(2a).

The firmware files in Cisco Host Upgrade Utility for individual releases are available at: Cisco UCS C-Series Integrated Management Controller Firmware Files, Release 4.1

All M4 and M5 Servers from 4.0

Follow below upgrade path:

• You can use Interactive HUU or Non-Interactive HUU (NIHUU) script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 4.1(2a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• Download HUU iso from here.

• Download NIHUU script from here.

All M5 Servers from 3.1

Follow below upgrade path:

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 4.1(2a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• Download HUU iso from here.

• Download NIHUU script from here.

For all M4 servers for releases greater than 3.0(3a)

4.1

Follow these steps to upgrade from releases greater than 3.0(3a) to 4.1(2a):

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 4.1(2a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• If you wish to secure Cimc Boot, set flag use_cimc_secure as yes in multiserver_config file present with python script.

• Download HUU iso from here.

• Download NIHUU script from here.

For all M4 servers for release lesser than 3.0(3a) except C460 M4

For C460 M4 servers for release 2.0(4c) to 3.0(3a)

4.1

Follow these steps to upgrade from releases less than 3.0(3a) to 4.1(2a):

Upgrade from version less than 3.0(3a) to 3.0(3a)

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the Non-Interactive HUU (NIHUU) tool, use the Python scripts that are released with version 3.0(3a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• Download HUU iso from here.

• Download NIHUU script from here.

Upgrade from 3.0(3a) to 4.1

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 4.1(2a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• If you wish to secure Cimc Boot, set flag use_cimc_secure as yes in multiserver_config file present with python script.

• Download HUU iso from here.

• Download NIHUU script from here.

For C460 M4 servers for release lesser than 2.0(4c)

4.1

Follow these steps to upgrade from releases less than 2.0(4c) to 4.1(2a):

Upgrade from version less than 2.0(4c) to 2.0(4c)

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 2.0(4c).

• Use OpenSSL 1.0.0-fips on the client side (where the NIHUU python scripts are running).

• If you wish to secure Cimc Boot, set flag use_cimc_secure as yes in multiserver_config file present with python script.

• Download HUU iso from here.

• Download NIHUU script from here.

Upgrade from 2.0(4c) to 3.0(3a)

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 3.0(3a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• If you wish to secure Cimc Boot, set flag use_cimc_secure as yes in multiserver_config file present with python script.

• Download HUU iso from here.

• Download NIHUU script from here.

Upgrade from 3.0(3a) to 4.1

• You can use Interactive HUU or NIHUU script to update the server.

• While updating the firmware using the NIHUU tool, use the Python scripts that are released with version 4.1(2a).

• Use OpenSSL 1.0.1e-fips on the client side (where the NIHUU python scripts are running).

• If you wish to secure Cimc Boot, set flag use_cimc_secure as yes in multiserver_config file present with python script.

• Download HUU iso from here.

• Download NIHUU script from here.

CSCwe90563

Detailed audit logs are not captured for few user or password related operations, such as, failed login attempts, modifying user attributes.

This issue is now resolved.

4.1(2l)

CSCwa32040

This issue is now resolved.

4.1(2b)

4.1(2h)

CSCvz33909

Cisco IMC is not reachable on BE7K after upgrading to release 4.1(2f) in Cisco UCS C240 M4 servers.

This issue is now resolved.

4.1(2f)

4.1(2g)

CSCvz24748

In Cisco UCS C-Series servers, the Cisco IMC management interface sometimes becomes unresponsive to ICMP, HTTPs, SSH due to memory leak, thus failing operations such as LED locator, CIMC reset, Discovery.

This issue is now resolved.

4.1(2f)

4.1(2g)

CSCvz04644

TLS static Cipher is now disabled by default for Cisco UCS C220 M4, C240 M4, and C460 M4 servers.

If you wish to enable this feature, see Enabling TLS Static Cipher procedure in Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 4.1.

4.1(2f)

4.1(2g)

CSCvw49192

After upgrading to release 4.1(2b), some system configurations may be unable to perform power characterization resulting in a POST failure. System freezes at Loading PTU driver screen. CATERR is also logged in the SEL.

This issue is now resolved.

4.1(2b)

4.1(2f)

CSCvv97789

Cisco UCS M4 servers fail to accept the default admin password in F8 boot utility under the following conditions:

• servers are running release 4.1(1c) or 4.1(2a)

• servers are reset to factory default settings for any reason

Due to this, you cannot use the F8 configuration utility.

This issue is now resolved.

4.1(2a)

4.1(2f)

CSCvi46928

Cisco IMC reboots without any reason in Cisco UCS C480 servers. Cisco IMC logs do not show any error or Out of Memory issues.

This issue is now resolved.

3.1(2b)

4.1(2f)

CSCvv60351

Cisco UCS M4 and M5 servers intermittently lose access to the equipped Flexflash and SD card.

This issue is now resolved.

4.0(4i)

4.1(2f)

CSCvw67797

Cisco UCS C240 M5 servers unexpectedly reboot after upgrading Cisco IMC to release 4.1(2b).

This issue is now resolved.

4.1(2b)

4.1(2f)

CSCvw95072

NMPowerManager.c triggers an unexpected power off event during OS run time in Cisco UCS M5 servers. As a result, Cisco IMC shuts down the server and triggers power characterization.

This issue is now resolved.

4.1(2b)

4.1(2f)

CSCvw42163

Following BIOS token settings in Cisco UCS C220 M4 servers with ESXi OS do not get updated after being set from Cisco IMC menu:

• ProcessorC1E

• ProcessorC1EReport

• ProcessorC6Report

F2 menu does not reflect the updated values.

This issue is now resolved.

4.0(2f)

4.1(2f)

CSCvv83116

Cisco IMC GUI interface does not display SAS SSD Smart information Power on Hours for Cisco UCS M4 and M5 servers.

This issue is now resolved.

4.1(2a)

4.1(2f)

CSCvv08053

Cisco UCS C-Series M4 and earlier model servers, in UCS Manager attached mode—if two IP addresses are configured in Inband mode from the same VLAN ID, then only one IP address is assigned after a fabric failover.

This issue is now resolved.

4.1(2a)

4.1(2b)

CSCvv79912

Unexpected BMC watchdog hard reset messages appear in logs.

This issue is now resolved.

4.0(4h)

4.1(2b)

CSCvt73487

Cisco UCS C480 M5 servers may stop responding at BIOS POST with the following SEL:

This issue is now resolved.

4.0(4h)

4.1(2a)

CSCvt23154

In Cisco UCS M5 servers, only CPU2 is listed in the invalid POR fault summary message, even though the fault occurs in both CPUs.

This issue is now resolved.

4.0(4b)

4.1(2a)

CSCvt63778

Power Cap setting failure is observed in Cisco UCS C220 M5 servers while configuring the profile. The following error message is displayed:

4.1(1c)

4.1(2a)

CSCvt76668

Cisco UCS S-series serves equipped with SAS Expander fail to upgrade the expander and report it as inoperable.

This issue is now resolved.

4.0(4h)

4.1(2a)

CSCvs29252

CIFS 2.0 share server mapping is not supported in Cisco UCS M4 servers.

Cisco IMC Scriptable Vmedia does not support vers option with NFS and CIFS mount options in Cisco UCS M4 servers.

There is no known workaround.

4.1(1c)

CSCvu31747

Local disk configured using Cisco 12G Modular RAID controller with 2GB cache (UCSC-RAID-M5), or Cisco 12G Modular RAID controller with 2GB cache UCSC-SAS9460-8i (UCSC-SAS9460-8i), or Cisco 12G Modular SAS HBA max 16 drives (UCSC-SAS-M5) is not discovered during the installation of Citrix XEN 7.1 Hypervisor on Cisco UCS M5 servers.

Perform the following steps:

1. During the installation of Citrix XEN 7.1 Hypervisor, press F9 and load the megaraid_sas driver.

2. Once the driver is loaded, press Ctrl + Alt + F1 to enter to Linux shell and execute the following command

   • For RAID Controller

     modprobe megaraid_sas

   • For SAS HBA

     modprobe mpt3sas

3. Ensure that the module is loaded successfully. Execute the following command to verify:

   • For RAID Controllers

     lsmod | grep megaraid_sas

   • For SAS HBA

     lsmod | grep mpt3sas

4. Press Ctrl + Alt + F2 to switch back to Citrix XEN 7.1 Hypervisor installer, and proceed with the OS installation.

5. Once the OS installation is complete, provide the MegaRAID or mpt3sas DUD as a supplementary package.

4.1(2a)

CSCvo39645

CATERR/IERR occurs on multiple concurrent reboots and the system becomes unresponsive during POST. This issue occurs on servers with NVMe drives on mSwitch connected configuration.

When this issue occurs, perform a warm reboot.

4.0(4b)

CSCvp35008

SLES/RHEL OS installation in UEFI mode fails on Cisco UCS C-Series M5 servers when they are equipped with Intel Xx710 adapters, and one or more of these adapters has the Option ROM enabled.

Disable the Option ROMs for all Intel adapters, including LOM, in the server.

4.0(4b)

CSCvs30287

Multiple critical SEL events are observed in Cisco UCS C125 servers based on AMD EPYC 7352 (ROME) processors, equipped with HGST NVMe drives

Reboot the server.

4.1(2a)

CSCvs06864

During installation of Windows 2019 on Cisco UCS fNIC LUN with service profile configured with 2 or more vHBAs on a Cisco UCS VIC 14xx series adapter, blue screen of death (BSoD) is observed.

On each Cisco UCS VIC 14xx series adapters, limit the number of vHBAs to one during Windows 2019 installation on SAN LUN. Add the remaining vHBAs after installation.

4.0(4b)

CSCvw45768

Password setting fails in the Cisco IMC Configuration Utility, when Cisco IMC is reset to factory defaults.

1. Reset Cisco IMC and wait for 15 minutes.

2. Set a strong password using the Cisco IMC Configuration Utility.

   See here for the guidelines to set a strong password.

3. If the following message is displayed after setting a strong password, then ignore the message:

   Weak password: Refer User Guide for strict password guidelines.

4. Reboot the host and perform other system configurations.

4.1(2b)

CSCvu62006

SLES 15.2 and Ubuntu 20.04 OS successfully install on Cisco UCS C-Series and S-Series M4 servers with UEFI boot entry. However, booting to UEFI default boot entry deactivates after a reboot.

Perform the following steps:

1. Enter BIOS setup and create an admin password.

2. Go to Advanced > Trusted Computing and select TCG_2 for TPM 1.2 or 2.0 UEFI version.

3. Press F10 to save and exit.

4.0(2m)

CSCvu43650

The following Redfish APIs are listed in release 4.1(2a), but are not supported:

• BbuStartLearnCycle

• StartDiagnostics

• GetDiagStatus

• CancelDiag

There is no known workaround. These APIs are only listed but not supported.

4.1(2a)

CSCvt38038

Link Training option is no longer available with Cisco UCS 13xx series VIC adapters.

There is no known workaround.

4.1(2a)

CSCvu06698

Cavium and Qlogic Network and iSCSI driver updates fail on ESXi OS version 7.0 and 6.5U3 with the dependency error.

ESXi OS image has inbox Cavium and QLogic Network and iSCSI driver which is incompatible with latest asynchronous drivers packaged as part of driver ISO.

Perform the following steps:

1. Move the ESXi host to maintenance mode.

2. Unload the inbox Cavium/QLogic drivers (qedentv/qedrntv/qedil)

   esxcli software vib remove, hwere vibname=VIB File of Driver

3. Load the latest driver packaged as part of Driver ISO

   esxcli software vib install -v <VIB File of driver>

4. Reboot the ESXi host.

5. Once the OS boots up, exit the maintenance mode.

4.1(2a)

CSCvu80469

Installation of mpt3sas driver fails after installing i40e drivers on SLES 12.5 OS in Cisco UCS servers equipped with Intel 710 series adapters and pass through HBA controller.

Following warning message is displayed:

Updating / installing...
1:lsi-mpt3sas-kmp-default
-30.00.01.# [100%]depmod: 
WARNING: //lib/modules/4.12.14-119-default
/kernel/drivers/infiniband/hw
/i40iw/i40iw.ko disagrees about 
version of symbol i40e_unregister_client
depmod: WARNING: //lib/modules
/4.12.14-119-default/kernel
/drivers/infiniband/hw/i40iw
/i40iw.ko disagrees about version 
of symbol i40e_register_client
Warning: /lib/modules/4.12.14-119
-default is inconsistent
Warning: weak-updates symlinks 
might not be created

Perform one of the following:

1. Uninstall i40e driver

2. Change the order of installation. Install mpt3sas driver first and then i40e driver.

4.1(2a)