1.1. Supported Kernels

1.1. Supported Kernels
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1.1.1. Unbreakable Enterprise Kernel Release 2

Oracle Linux 6 Update 4 ships with two sets of kernel packages:

Unbreakable Enterprise Kernel Release 2 (kernel-uek-2.6.39-400.17.1.el6uek)
Red Hat Compatible Kernel (kernel-2.6.32-358.el6)

By default, both the Unbreakable Enterprise Kernel and the Red Hat Compatible Kernel for the specific architecture (i386 or x86_64) are installed and the system boots the Unbreakable Enterprise Kernel.

To make your system use the Red Hat Compatible Kernel by default:

Edit /etc/grub.conf and change the value of the default parameter to indicate the Red Hat Compatible Kernel. (Each entry for a bootable kernel in the file starts with a title definition. The entries are effectively numbered from 0 upwards, where 0 corresponds to the first entry in the file, 1 to the second entry, and so on. To view the GRUB manual, use the info grub command.)
Edit /etc/sysconfig/kernel and change the setting for the default kernel package type from DEFAULTKERNEL=kernel-uek to DEFAULTKERNEL=kernel.

1.1.1. Unbreakable Enterprise Kernel Release 2

The Unbreakable Enterprise Kernel Release 2 (UEK R2) is based on the upstream kernel 3.0.36 stable source tree.

The Unbreakable Enterprise Kernel supports a wide range of hardware and devices. In close cooperation with hardware and storage vendors, the following device drivers have been updated by Oracle in the 2.6.39-400 kernel.

Storage Adapter Drivers

Broadcom

NetXtreme II iSCSI driver (bnx2i) updated to 2.7.4.1f.
NetXtreme II Fibre Channel over Ethernet driver (bnx2fc) updated to 2.2.17.

Emulex

Blade Engine 2 Open-iSCSI driver (be2iscsi) updated to 10.0.272.0o.
Fibre Channel HBA driver (lpfc) updated to 8.3.5.86.2p.

Mellanox

ConnectX core driver (mlx4_core) released at 1.0-ofed1.5.5 (x86_64 only). Handles low-level functions such as device initialization and firmware commands processing, and controls resource allocation so that the InfiniBand and Ethernet functions can share a device without interfering with each other.
ConnectX Ethernet driver (mlx4_en) released at 1.5.4.24 (x86_64 only). Handles Ethernet-specific functions and plugs into the netdev mid-layer.
ConnectX InfiniBand driver (mlx4_ib) released at 1.0-ofed1.5.5 (x86_64 only). Handles InfiniBand-specific functions.

QLogic

Fibre Channel HBA driver (qla2xxx) updated to 8.04.00.11.39.0-k.
iSCSI driver (qla4xxx) updated to 5.03.00.01.06.02-uek2. Now supports Open-iSCSI.

Network Adapter Drivers

Broadcom

NetXtreme II network adapter driver (bnx2) updated to 2.2.3e.
NetXtreme II 10Gbps network adapter driver (bnx2x) updated to 1.74.17.
Converged Network Interface Card core driver (cnic) updated to 2.5.12e.
Tigon3 Ethernet adapter driver (tg3) updated to 3.125g.

Emulex

Blade Engine 2 10Gbps adapter driver (be2net) updated to 4.4.161.0o.

Intel

PRO/1000 PCI-Express Gigabit network adapter driver (e1000e) updated to 2.1.4-NAPI.
Gigabit Ethernet network adapter driver (igb) updated to 4.0.17.
10 Gigabit PCI-Express network adapter driver (ixgbe) updated to 3.11.33.
10 Gigabit Server Adapter virtual function driver (ixgbevf) updated to 2.6.2-NAPI. The kernel must support Single Root I/O Virtualization (SR-IOV).

QLogic

NetXen Multiport 1/10 Gigabit Network adapter driver (netxen_nic) updated to 4.0.80.
1/10 GbE Converged/Intelligent Ethernet Adapter driver (qlcnic) updated to 5.1.27.35.
QLE81xx network adapter driver (qlge) updated to v1.00.00.31.

Miscellaneous Drivers

Oracle

Reliable Datagram Sockets driver (rds) updated to 4.1. RDS provides in-order, non-duplicated, highly-available, low-overhead, reliable delivery of datagrams between hundreds of thousands of non-connected endpoints.