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Red Hat Enterprise Linux 9 Essentials Book now available.

Purchase a copy of Red Hat Enterprise Linux 9 (RHEL 9) Essentials

Red Hat Enterprise Linux 9 Essentials Print and eBook (PDF) editions contain 34 chapters and 298 pages

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9.4. Driver Changes

This section describes the driver changes in Red Hat Enterprise Linux 6. Please note that all drivers are now loaded to initramfs by default.
Discontinued Drivers
  • aic7xxx_old
  • atp870u
  • cpqarray
  • DAC960
  • dc395x
  • gdth
  • hfs
  • hfsplus
  • megaraid
  • net/tokenring/
  • paride
  • qla1280
  • sound/core/oss
  • sound/drivers/opl3/*
  • sound/pci/nm256
Deprecated Drivers
  • aacraid
  • aic7xxx
  • i2o
  • ips
  • megaraid_mbox
  • mptlan
  • mptfc
  • sym53c8xx
Discontinued Kernel Components
  • NBD - Network Block Device supplanted by iSCSI in Red Hat Enterprise Linux 6.
  • HFS - Apple filesystem support discontinued in Red Hat Enterprise Linux 6.
  • Tux - Web Server accelerator discontinued in Red Hat Enterprise Linux 6.
  • Non-PAE x86 kernel - Previous versions of Red Hat Enterprise Linux contained multiple kernels for the i686 architecture: a kernel with, and a kernel without PAE. It has been many years since non-PAE hardware was sold in volume. Hence in Red Hat Enterprise Linux 6, there will only be a single kernel, one that includes PAE.
  • The Anticipatory I/O scheduler is deprecated and is not present in Red Hat Enterprise Linux 6. It is replaced by the CFQ (Completely Fair Queueing) I/O scheduler, which has been the default I/O scheduler in the Linux kernel since 2006. Customers using the Anticipatory I/O scheduler are encouraged to test their workload using CFQ and file bugs for any performance issues observed. While the goal is to make CFQ perform on par with the Anticipatory I/O scheduler in all tested workloads, Red Hat cannot guarantee that there will be no outliers.

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