Dell EMC PowerEdge Systems Running Red Hat Enterprise Linux 8 Release Notes December 2020 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2019 - 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Release summary..........................................................................................................5 Version................................................................................................................................................................................... 5 Release date........................................................................................................................................................................
The lspci utility is unable to read Vital Product Data (VPD) from QLogic QLE2692 adapter........................ 20 Driver dependency mismatch errors reported while installing out-of-box drivers on Red Hat Enterprise Linux 8.x...................................................................................................................................................... 20 Dmesg displays TPM and nvdimm related-messages in Red Hat Enterprise Linux 8.1.....................................
1 Release summary Red Hat Enterprise Linux (RHEL) 8 is the follow-on Operating System (OS) release to the RHEL 7 operating system. Major enhancements in RHEL 8 are improvements in security and stability. Topics: • • • Version Release date Priority and recommendations Version 8.3 Release date November 2020 Priority and recommendations RECOMMENDED: Dell EMC recommends applying this update during your next scheduled update cycle.
2 Compatibility RHEL 8 is available on the 64-bit Intel architecture. Topics: • System configuration requirements System configuration requirements For detailed system configuration requirements for RHEL 8, see the documentation at www.redhat.com/support. Memory The following table lists the system memory requirements for the x86_64 architecture of RHEL 8. Table 1. Memory requirements for x86_64 architecture Memory Size Minimum recommended system memory 1.
3 New and enhanced in RHEL 8 release ● ● ● ● ● ● ● ● ● ● Simple content structure available through BaseOS and Application Stream repository More life cycle options and frequent application updates YUM4 package manager is based on the DNF technology Increased security with memory Better management of System Processes Support for Control Group v2 mechanism Multiple packages of the kernel package Distributed with Stratis, a new local storage manager, which provides easy to use CLI and well designed API Syste
4 Important notes In the earlier versions of Red Hat Enterprise Linux, the default network interface naming scheme was biosdevname. From RHEL 8 onwards, systemd is the default naming scheme for network interface naming. NOTE: You can turn on the biosdevname naming scheme during installation or post installation by passing the kernel command line parameter biosdevname=1.
5 Fixes Topics: • • • • • • • • • • • • • • • • Dmesg displays Integrity Measurement Architecture (IMA) driver related-messages during system boot After every reboot, the network interface name changes Red Hat Enterprise Linux Version 8 installation wizard creates a duplicate bonding interface Servers with the AMD Rome processor display a CCP initialization failure message in dmesg PowerEdge servers with the AMD Rome processor fail to detect an NVMe drive after multiple hot plugs Operating system enters th
Cause: There is an issue with _SUN ACPI Slot numbers in system firmware. Solution: Update the system BIOS to 1.4.8 version or later. Systems affected: ● PowerEdge R6525: Impacted slots are 1, and 2 ● PowerEdge R7525: Impacted slots are 1, 2, 3, 6, 4, 5, 7, and 8 Tracking number: 148546 Red Hat Enterprise Linux Version 8 installation wizard creates a duplicate bonding interface Description: During Red Hat Enterprise Linux Version 8.
Follow the steps: 1. Identify the parent device to which the NVMe device is connected using the following command: lspci -t -+-[0000:e0]-+-00.0 | +-00.2 | +-01.0 | +-02.0 | +-03.0 | +-03.1-[e2]----00.0 From the above snippet, the device e2:00.0 is the NVMe device and the device e0:03.1 is the parent device. The parent device is used for the steps that are described subsequently. 2. Read the Slot Status Register in the PCI Express Capability structure by running the following command: setpci -s e0:03.
System crashes when rebooted with SR-IOV-enabled QLogic cards Description When the system is rebooted with SR-IOV-enabled QLogic cards, the system crashes and generates a coredump (vmcore) in /var/crash. Applies to Red Hat Enterprise Linux 8.0 and later Cause: The system crash is due to an issue in the qede driver. Workaround Disable SR-IOV before rebooting the system.
Systems affected: Dell EMC PowerEdge yx4x and yx5x servers Tracking number: 158536 Fatal error BDF 02:00.0 is detected with BCM574xx NICs Description: A fatal error on bus number 02, device number 00, and function number 0 (BDF 2:0.0) is observed in the following configurations: ● When a graceful shutdown action is initiated. ● In Gnome settings, under the Suspend & Power Button section, the When the Power Button is pressed option is set to Suspend. Applies to: Red Hat Enterprise Linux 8.
The output of the command is as follows: Ethernet controller: Intel Corporation Ethernet Controller x710 for 10GBASE-T Vendor ID: 8086 Device ID: 15FF Applies to: Red Hat Enterprise Linux 8.1 Cause: The i40e in-box driver is not enabled to detect an Intel x710 NIC. Workaround: Install the out-of-box drivers. Solution: The issue is resolved in Red Hat Enterprise Linux 8.
When booting the system from iSCSI with Mellanox CX-4 and CX-5 adapters, the system reports csum failure message Description: When booting the system from iSCSI with Mellanox CX-4 and CX-5 adapters, the following message is displayed in the dmesg and /var/log/messages reports: localhost kernel: ibft0: hw csum failure This message can be ignored. Applies to: Red Hat Enterprise Linux 8 Cause: Some networking switches which are sending frames with nonzero padding bytes maybe causing the issue.
Tracking number: 129907 16 Fixes
6 Known issues Topics: • • • • • • • • • • • • • • • • • • • • Caps Lock key-press is not registered on the Dell PowerEdge iDRAC virtual console RHEL 8.3 installer does not automatically locate the source installation repository when only inst.
RHEL 8.3 installer does not automatically locate the source installation repository when only inst.stage2=hd boot option is used Description: When both stage2 and the installation repository are on the same internal drive or external drive (USB hard drive), RHEL 8.3 installer does not automatically locate the source installation repository when only inst.stage2=hd boot option is used. Applies to: Red Hat Enterprise Linux 8.3 Workaround: Modify the boot option inst.stage2=hd:LABEL= to inst.
Applies to: Red Hat Enterprise Linux 8.2 and later Cause: The dmidecode utility does not support the Slot Type value of 0x24 that is defined in System Management BIOS (SMBIOS) version 3.4. Systems affected: Dell EMC PowerEdge R6515, Dell EMC PowerEdge R7515, Dell EMC PowerEdge R6525, Dell EMC PowerEdge R7525, and Dell EMC PowerEdge C6525.
The Mellanox IB devices are listed under an incorrect device category on Red Hat Enterprise Linux 8 Description: The Mellanox IB devices are listed under the Bluetooth section of the Network settings tab in Red Hat Enterprise Linux 8 and Red Hat Enterprise Linux 8.1 operating systems. This is a cosmetic issue and can be ignored. Applies to: Red Hat Enterprise Linux 8 and later Workaround: Use the nmcli tool or the nm-connection-editor to display available devices.
Dmesg displays TPM and nvdimm related-messages in Red Hat Enterprise Linux 8.1 Description: When Red Hat Enterprise Linux Version 8.1 is booted with the TPM 2.0 chip enabled, dmesg displays the following messages in var/log/message: No TPM handle discovered. failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or directory There is no impact to the functionality of the TPM chip if it is enabled in the system BIOS. This is a cosmetic error and can be ignored.
iscsiadm output displays STATIC in the iface.bootproto field when the network interface is configured to DHCP Description: When the system is booting from iSCSI with the Emulex OneConnect device that is configured with DHCP IP, the iface.bootproto field is listed as STATIC in the command iscsiadm -m fw output. There is no functionality loss. Applies to: Red Hat Enterprise Linux 8.
2. In the Suspend & Power Button section, from the When the Power Button is pressed list, select Power Off. NOTE: By default, Suspend option is selected. NOTE: The preceding workaround may not work when the system is locked. GNOME prevents the accidental shutdown when system is locked.
● After the iSCSI installation, during boot, add the following boot parameter: rd.net.timeout.carrier=7 Systems affected: All Dell EMC PowerEdge servers Tracking number: 124792 RHEL 8 installation fails on systems with Emulex OneConnect card Description: When RHEL 8 is installed on an iSCSI LUN that is configured on Emulex OneConnect card on Dell EMC 13G systems, the installation fails with a UnicodeDecodeError.
7 Limitations ● ● ● ● ● The auth and authconfig kickstart commands require the AppStream repository The --interactive option of the ignoredisk kickstart command does not work in RHEL 8 RHEL 8 system becomes unresponsive when many devices are connected Physical memory hot plugging does not work Database servers are not installable in parallel For more information on the limitations of RHEL 8, see www.access.redhat.com/documentation/en-us/ red_hat_enterprise_linux/8/html-single/8.
8 Resources and support This section provides information about the documentation resources for your server. Table 2. Additional documentation resources for your server Task Document Location Setting up your server For information about installing the server into a rack, see the Rack documentation included with your rack solution or the Getting Started Guide that is shipped with your server. www.dell.com/poweredgemanuals For information about turning on www.dell.
Table 2. Additional documentation resources for your server (continued) Task Document Location www.dell.com/ openmanagemanuals > OpenManage Essentials User’s Guide. For information about installing and using Dell SupportAssist, see the Dell EMC SupportAssist Enterprise User's Guide. www.dell.com/serviceabilitytools For understanding the features of Dell EMC Lifecycle Controller (LC), see the Lifecycle Controller User's Guide. www.dell.
Download drivers and firmware It is recommended that you download and install the latest BIOS, drivers, and systems management firmware on your system. Ensure that you clear the web browser cache before downloading the drivers and firmware. 1. Go to Dell.com/support/drivers. 2. In the Drivers & Downloads section, enter the Service Tag of your system in the Enter a Dell Service Tag, Dell EMC Product ID, or Model field, and then click Submit.
9 Contacting Dell EMC Dell EMC provides several online and telephone-based support and service options. Availability varies by country, region, and product, and some services may not be available in your area. To contact Dell EMC for sales, technical assistance, or customer service issues, see www.dell.com/contactdell. If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or the product catalog.
