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Centos(kernel)内核升级

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Centos(kernel)内核升级

内核版本列表

内核版本列表kernel.orgopen in new window

状态版本日期tarballpgppatchinc.patchview diffbrowsechangelog
mainline:6.8-rc72024-03-03tarballopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new window
stable:6.7.92024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:6.6.212024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:6.1.812024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:5.15.1512024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:5.10.2122024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:5.4.2712024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
longterm:4.19.3092024-03-06tarballopen in new windowpgpopen in new windowpatchopen in new windowinc. patchopen in new windowview diffopen in new windowbrowseopen in new windowchangelogopen in new window
linux-next:next-202403072024-03-07browseopen in new window
  • longterm：长期支持版本
  • stable：稳定版本
  • mainline：主线版本

导入该源的秘钥

http://www.elrepo.org/open in new window

# 1、导入该源的秘钥
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
# 2、启用该源仓库
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-6.el7.elrepo.noarch.rpm
或者：
yum -y install https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm

查看可升级的内核版本

yum --disablerepo="*" --enablerepo="elrepo-kernel" list available

可安装的软件包

kernel-lt(基于长期支持分支) 5.4.271-1.el7.elrepo

kernel-ml(主流的，来源于主线稳定分支提供) 5.4.271-1.el7.elrepo

安装内核

yum --enablerepo=elrepo-kernel install -y kernel-lt-5.4.211-1.el7.elrepo

查看当前系统内可用内核

awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg

设置开机从新内核版本启动

其中 0 是上面查询出来的可用内核编号

grub2-set-default 0 && reboot

删除当前无用的系统内核版本

查看所有已安装的内核版本

[root@init ~]# rpm -qa | grep kernel

kernel-tools-libs-3.10.0-1160.76.1.el7.x86_64
kernel-3.10.0-1160.76.1.el7.x86_64
kernel-headers-3.10.0-1160.76.1.el7.x86_64
kernel-devel-3.10.0-1160.el7.x86_64
kernel-tools-3.10.0-1160.76.1.el7.x86_64
kernel-devel-3.10.0-1160.76.1.el7.x86_64
kernel-lt-5.4.271-1.el7.elrepo.x86_64
kernel-3.10.0-1160.el7.x86_64
abrt-addon-kerneloops-2.1.11-60.el7.centos.x86_64

当前使用的内核版本

[root@init ~]# uname -r
5.4.271-1.el7.elrepo.x86_64

删除

yum remove -y kernel-3.10.0-1160.el7.x86_64 kernel-3.10.0-1160.76.1.el7.x86_64

或

yum remove $(rpm -qa | grep kernel | grep -v $(uname -r))

# 全部卸载后重新安装
[root@init ~]# yum --enablerepo=elrepo-kernel install -y kernel-lt-5.4.271-1.el7.elrepo \
kernel-lt-doc-5.4.271-1.el7.elrepo \
kernel-lt-headers-5.4.271-1.el7.elrepo \
kernel-lt-tools-5.4.271-1.el7.elrepo \
kernel-lt-tools-libs-5.4.271-1.el7.elrepo \
kernel-lt-tools-libs-devel-5.4.271-1.el7.elrepo \
kernel-lt-devel-5.4.271-1.el7.elrepo

[root@init ~]# rpm -qa | grep kernel
kernel-lt-5.4.271-1.el7.elrepo.x86_64
kernel-lt-doc-5.4.271-1.el7.elrepo.noarch
kernel-lt-tools-5.4.271-1.el7.elrepo.x86_64
kernel-lt-tools-libs-5.4.271-1.el7.elrepo.x86_64
kernel-lt-tools-libs-devel-5.4.271-1.el7.elrepo.x86_64
kernel-lt-headers-5.4.271-1.el7.elrepo.x86_64
abrt-addon-kerneloops-2.1.11-60.el7.centos.x86_64
kernel-lt-devel-5.4.271-1.el7.elrepo.x86_64

安装其他工具

yum install -y gcc make ncurses-devel openssl-devel flex bison  elfutils-libelf-devel
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