CentOS 7 steps to upgrade the kernel to Kernel 4.0.2

Linus Torvalds has upgraded the Linux kernel to Kernel 4.0.2, new kernel patches and newer Bluetooth, USB, SCSI, ACPI drivers, increased NFS and EXT4, and improved ARM64 and PowerPC architectures.

In addition to updated drivers, enhanced support for new devices and file systems also brings the long-awaited life patching feature, allowing users to update the kernel without restarting the system. For ordinary users this is not important, this feature for Linux server is very practical.

Install the command, and then enter the following command to install:

Su Root
RPM--import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
Yum Install http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
Yum--enablerepo=elrepo-kernel Install kernel-ml
Reboot

Uninstall command:

Yum Remove kernel-ml

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Import Public key

RPM--import
https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

Install Yum source installation to Centos7

RPM-UVH
http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

Install Kernel (7 with KERNEL-ML)

Yum--enablerepo=elrepo-kernel Install kernel-ml

Install to CENTOS6

RPM-UVH
http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm

Install to Centos5

RPM-UVH
http://www.elrepo.org/elrepo-release-5-5.el5.elrepo.noarch.rpm

Install Kernel (5/6 with kernel-lt)

Yum--enablerepo=elrepo-kernel Install Kernel-lt

Sometimes network problems cause

No package kernel-ml* available.
Error:nothing Todo

Download the RPM package manually, install it manually, and specify the boot sequence.

wget http://elrepo.org/linux/kernel/el7/x86_64/RPMS/kernel-ml-4.6.4-1.el7.elrepo.x86_64.rpm

RPM-IVH kernel-ml-4.6.4-1.el7.elrepo.x86_64.rpm

Grub2-set-default ' CentOS Linux (4.4.2-1.el7.elrepo.x86_64) 7 (Core) with debugging '

[Root@abc boot]# grub2-editenv list
saved_entry=centos Linux (4.4.2-1.el7.elrepo.x86_64) 7 (Core) with debugging