Linux 内核 4.2 已经发布 – 附安装说明

Kernel 4.2 已经发布了,这是 Linus Torvalds 近期发布的最大的一个版本,增加了超过100万行代码,移除了大约25万行代码。主要新特性包括:新的AMDGPU驱动;Intel Broxton支持;改进NCQ TRIM处理;F2FS文件系统加密;重写了部分英特尔x86汇编代码;LSM Stacking;延迟梯度网络拥堵控制算法;改进控制组的回写管理等等。

Linux kernel

以下内容来自邮件列表:

So judging by how little happened this week, it wouldn’t have been a mistake to release 4.2 last week after all, but hey, there’s certainly a few fixes here, and it’s not like delaying 4.2 for a week should have caused any problems either.

So here it is, and the merge window for 4.3 is now open. I already have a few pending early pull requests, but as usual I’ll start processing them tomorrow and give the release some time to actually sit.

安装说明。

Ubuntu 系统用户安装,ubuntu 提供了 DEB 安装包,下载地址:kernel.ubuntu.com,你也可以使用以下命令安装。

32位用户:

下载安装包命令:

cd /tmp
wget
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-headers-4.2.0-040200_4.2.0-040200.201508301530_all.deb
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-headers-4.2.0-040200-generic_4.2.0-040200.201508301530_i386.deb
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-image-4.2.0-040200-generic_4.2.0-040200.201508301530_i386.deb

安装 Kernel:

sudo dpkg -i linux-headers-4.2*.deb linux-image-4.2*.deb

卸载 kernel:

sudo apt-get remove linux-header-4.2* linux-image-4.2*

64位用户:
下载安装包命令:

cd /tmp
wget
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-headers-4.2.0-040200_4.2.0-040200.201508301530_all.deb
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-headers-4.2.0-040200-generic_4.2.0-040200.201508301530_amd64.deb
kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-unstable/linux-image-4.2.0-040200-generic_4.2.0-040200.201508301530_amd64.deb

安装 Kernel:

sudo dpkg -i linux-headers-4.2*.deb linux-image-4.2*.deb

卸载 kernel:

sudo apt-get remove linux-header-4.2* linux-image-4.2*

CentOS 7 用户安装

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

卸载 kernel 4.2

yum remove kernel-ml

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