Owners Manual
Table Of Contents
- Dell EMC PowerEdge Systems running Red Hat Enterprise Linux 6 (x86_64, x86) Installation Instructions and Important Information
- Installation instructions and important information
- Overview
- Latest available operating system
- System configuration requirements
- Reviewing preconfiguration options
- Installing and reinstalling Red Hat Enterprise Linux 6
- Installing Red Hat Enterprise Linux 6 using the Dell EMC Systems Management Tools and Documentation media
- Installing using the Red Hat Enterprise Linux 6 installation media
- Installing Red Hat Enterprise Linux 6 with Dell EMC Unified Server Configurator
- Installing Red Hat Enterprise Linux 6 on systems with a Dell EMC Utility Partition
- Installing Red Hat Enterprise Linux 6 in the Conventional (BIOS) Mode
- Installing Red Hat Enterprise Linux 6 in the UEFI mode
- Installing Red Hat Enterprise Linux 6 on devices that support multipathing
- Installing Red Hat Enterprise Linux 6 on iSCSI storage
- Installing Red Hat Enterprise Linux 6 using the software iSCSI initiator
- Installing Red Hat Enterprise Linux 6 using the hardware iSCSI initiator
- Installing Red Hat Enterprise Linux on FCoE-Enabled storage
- Add-on device drivers
- Updating your system packages using the Red Hat Network
- Important information
- Known issues in Red Hat Enterprise Linux 6.10
- Known issues in Red Hat Enterprise Linux 6.9
- Known issues in Red Hat Enterprise Linux 6.8
- Red Hat Enterprise Linux 6.8 does not recognize the QLogic QL45212-DE 25 GbE device
- Unable to boot Red Hat Enterprise Linux 6.7 and later from FCoE using Intel X520 based NIC
- NVMe devices are not identified during Red Hat Enterprise Linux 6.5 installation and later
- Ethtool reports 10 GbE port speed instead of 25 GbE when using Mellanox mlx5_core driver
- Resolved issues in Red Hat Enterprise Linux 6.7
- Known issues in Red Hat Enterprise Linux 6.7
- Known issues in Red Hat Enterprise Linux 6.6
- Resolved issues in Red Hat Enterprise Linux 6.6
- Kernel panic occurs when OMSA services are started on Red Hat Enterprise Linux 6.5
- Unable to Install Red Hat Enterprise Linux 6.5 with an existing brtfs partition
- Underscore is missing for the interface name of Vindicator 2 Emulex card on network page
- Unable to boot Red Hat Enterprise Linux 6.5, after successful installation in UEFI mode
- DDR DMA testing fails in ethtool on Red Hat Enterprise Linux 6.5 Hypervisor
- Using IPv6 with Mozilla Firefox displays certification error
- Data unavailability occurs on Dell EMC EqualLogic arrays due to Linux multipathing
- Red Hat Enterprise Linux 6.5 displays the error message
- Red Hat Enterprise Linux 6.5 fails to boot from iSCSI LUNs
- Known issues in Red Hat Enterprise Linux 6.5
- Booting with kernel parameters results in DMAR errors
- Xserver crashe, while booting Red Hat Enterprise Linux 6.5 after installation
- Invalid naming conventions for the ports of Vindicator 2 Emulex card when NPAR-EP is enabled
- NVMe Devices Are Not Identified During Operating System Installation
- Red Hat Enterprise Linux 6 fails when the DSDT in the BIOS has IPMI Opregion enabled
- Lifecycle Controller (USC based installation) deployment fails when installing Red Hat Enterprise Linux 6.x
- ethtool does not report 40 GB for Mellanox ConnectX-3 40 GB adapter
- Blurred display when changing resolution in Red Hat Enterprise Linux 6.5
- Resolved issues in Red Hat Enterprise Linux 6.5
- Teamed NICs have no network connectivity
- Red Hat Enterprise Linux 6.4 installation on 10 GB iSCSI LUN from an EQL array hangs while creating a file system
- Ethtool reports 10GbE port speed instead of 40GbE when using Mellanox MLX4_EN driver
- Packet loss occurs when bonding device is configured in balanced-alb mode
- Known issues in Red Hat Enterprise Linux 6.4
- Resolved issues in Red Hat Enterprise Linux 6.4
- Known issues in Red Hat Enterprise Linux 6.3
- Resolved issues in Red Hat Enterprise Linux 6.3
- Red Hat Enterprise Linux 6.2 kickstart installation may fail
- Network connections display the last used status as never in Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 6.2 displays a dbus netlink poll error after installation
- Network manager error in Red Hat Enterprise Linux 6.1 operating system log
- Red Hat Enterprise Linux 6.1 stops responding when iDRAC6 is reset
- Known issues in Red Hat Enterprise Linux 6.2
- Resolved issues in Red Hat Enterprise Linux 6.2
- Known issues in Red Hat Enterprise Linux 6.1
- Red Hat Enterprise Linux 6.1 displays a bluez network manager error after installation
- Error message on starting IPMI drivers while installing OMSA
- Assigning iSCSI LUN target to Intel 10G network controller stops the operating system from booting
- Systems with Intel multiport i350 rNDC and PCI add-in adapters report incorrect or duplicate Mac address
- tg3 driver fails post Red Hat Network update
- Kernel panic occurs when GPGPU C2075 is installed on Red Hat Enterprise Linux 6.1
- Red Hat Enterprise Linux 6.1 installation fails
- Driver installation fails during Red Hat Enterprise Linux 6.1 installation
- dmesg error log displays a generic hardware error
- Resolved issues in Red Hat Enterprise Linux 6.1
- Graphical boot splash screen in the UEFI mode is in low resolution
- PERC H700 DIMM failure messages with the debug kernel
- Network devices enumerated in an incorrect order
- OpenManage installation does not respond on Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 6 installation fails with virtual media
- Known issues in Red Hat Enterprise Linux 6
- Finding more information
- Getting help

OpenManage installation does not respond on Red Hat
Enterprise Linux 6
Description Dell EMC OpenManage installation does not respond on PowerEdge R905, 2970, 6950, and T605 systems.
Workaround dcdbas is a native driver in Red Hat Enterprise Linux 6.1. To resolve this issue, download the dcdbas driver at
www.dell.com/support.
Cause This issue is caused due to a defect in the dcdbas driver.
Red Hat Enterprise Linux 6 installation fails with virtual media
Description Red Hat Enterprise Linux 6 installation fails while accessing the iDRAC virtual media.
Workaround
1 Go to www.dell.com/support.
2 Click Drivers & Downloads.
3 Enter your system Service Tag or select your product.
4 From the Operating System drop-down menu, select Red Hat Enterprise Linux 6.
5 From the All PowerEdge XXX les, click Operating System and download the patch.
Cause Udev uses cdrom_id binary internally to populate environment variables that are related to the CDROM. During
installation, certain variables may not be available and the installation is forced to terminate.
Known issues in Red Hat Enterprise Linux 6
Kernel panic on PowerEdge R905 systems
Description
Kernel panic may occur on PowerEdge R905 systems when HPET is enabled in the BIOS.
Workaround
This issue does not occur when the HPET setting is disabled (Dell EMC factory default setting).
If the HPET setting is enabled in the BIOS, pass the no_timer_check parameter in the kernel command line.
Cause This issue occurs due to the way the APIC of the system is initialized by the operating system.
Login to iSCSI LUN may fail through multiple interfaces
Description
If there are multiple interfaces on the same subnet and if iSCSI LUN discovery is done using the second interface,
the discovery fails. This issue aects iSCSI iface binding when multiple interfaces are on the same subnet.
Login using the following command succeeds:
#iscsiadm -m discovery -t st -p <IP> -I iface0#iscsiadm -m discovery -t st -p -
I iface0 -l
32 Installation instructions and important information