这篇文章主要介绍了Centos 8.2 升级内核通过elrepo源,本文给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值，需要的朋友可以参考下
一、Centos 8.2 升级内核通过elrepo源
地址
- https://www.kernel.org
- http://elrepo.org/tiki/tiki-index.php
查看linux内核版本
[root@localhost ~]# cat /proc/version
Linux version 4.18.0-193.el8.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 8.3.1 20191121 (Red Hat 8.3.1-5) (GCC)) #1 SMP Fri May 8 10:59:10 UTC 2020
[root@localhost ~]# uname -a
Linux localhost.localdomain 4.18.0-193.el8.x86_64 #1 SMP Fri May 8 10:59:10 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
查看yum中可升级的内核版本
[root@localhost ~]# yum list kernel --showduplicates
CentOS Linux 8 - BaseOS 1.2 MB/s | 4.6 MB 00:03
CentOS-8 - Extras 4.9 kB/s | 11 kB 00:02
Last metadata expiration check: 0:00:01 ago on Sat 15 Oct 2022 02:58:01 PM CST.
Installed Packages
kernel.x86_64 4.18.0-193.el8 @anaconda
Available Packages
kernel.x86_64 4.18.0-348.el8 baseos
kernel.x86_64 4.18.0-348.2.1.el8_5 baseos
kernel.x86_64 4.18.0-348.7.1.el8_5 baseos注意：可能要配置yum原（去找找吧）当然在我 二进制安装kubernetes 最后标题报错有配置yum原
导入ELRepo软件仓库的公共秘钥
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.orgCentOS 8 系统安装ELRepo
[root@localhost ~]# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
[root@localhost ~]# yum install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm
Last metadata expiration check: 0:05:56 ago on Sat 15 Oct 2022 02:58:01 PM CST.
elrepo-release-8.el8.elrepo.noarch.rpm 6.7 kB/s | 13 kB 00:01
Dependencies resolved.
==================================================================================================================
Package Architecture Version Repository Size
==================================================================================================================
Installing:
elrepo-release noarch 8.3-1.el8.elrepo @commandline 13 k
Transaction Summary
==================================================================================================================
Install 1 Package
Total size: 13 k
Installed size: 5.0 k
Is this ok [y/N]: y
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : elrepo-release-8.3-1.el8.elrepo.noarch 1/1
Verifying : elrepo-release-8.3-1.el8.elrepo.noarch 1/1
Installed products updated.
Installed:
elrepo-release-8.3-1.el8.elrepo.noarch
Complete!查看ELRepo提供的内核版本
内核版本简写说明
kernel-lt(lt=long-term)长期有效
kernel-ml(ml=mainline)主流版本
[root@localhost ~]# yum --disablerepo="*" --enablerepo="elrepo-kernel" list available
ELRepo.org Community Enterprise Linux Kernel Repository - el8 31 kB/s | 2.1 MB 01:08
Last metadata expiration check: 0:00:01 ago on Sat 15 Oct 2022 03:06:34 PM CST.
Available Packages
bpftool.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-lt.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-core.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-devel.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-doc.noarch 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-headers.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-modules.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-modules-extra.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-tools.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-tools-libs.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-lt-tools-libs-devel.x86_64 5.4.217-1.el8.elrepo elrepo-kernel
kernel-ml.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-core.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-devel.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-doc.noarch 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-headers.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-modules.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-modules-extra.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-tools.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-tools-libs.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
kernel-ml-tools-libs-devel.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
perf.x86_64 6.0.1-1.el8.elrepo elrepo-kernel
python3-perf.x86_64 6.0.1-1.el8.elrepo elrepo-kerne安装长期支持的内核
[root@localhost ~]# yum --enablerepo=elrepo-kernel install kernel-lt.x86_64 kernel-lt-devel.x86_64
ELRepo.org Community Enterprise Linux Repository - el8 5.4 kB/s | 259 kB 00:47
ELRepo.org Community Enterprise Linux Kernel Repository - el8 353 kB/s | 2.1 MB 00:06
Last metadata expiration check: 0:00:01 ago on Sat 15 Oct 2022 03:14:19 PM CST.
Dependencies resolved.
==================================================================================================================
Package Architecture Version Repository Size
==================================================================================================================
Installing:
kernel-lt x86_64 5.4.217-1.el8.elrepo elrepo-kernel 75 k
kernel-lt-devel x86_64 5.4.217-1.el8.elrepo elrepo-kernel 13 M
Installing dependencies:
kernel-lt-core x86_64 5.4.217-1.el8.elrepo elrepo-kernel 28 M
kernel-lt-modules x86_64 5.4.217-1.el8.elrepo elrepo-kernel 25 M
Transaction Summary
==================================================================================================================
Install 4 Packages
Total download size: 66 M
Installed size: 136 M
Is this ok [y/N]: y
Downloading Packages:
(1/4): kernel-lt-5.4.217-1.el8.elrepo.x86_64.rpm 69 kB/s | 75 kB 00:01
(2/4): kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64.rpm 1.2 MB/s | 13 MB 00:10
(3/4): kernel-lt-core-5.4.217-1.el8.elrepo.x86_64.rpm 719 kB/s | 28 MB 00:40
(4/4): kernel-lt-modules-5.4.217-1.el8.elrepo.x86_64.rpm 339 kB/s | 25 MB 01:14
------------------------------------------------------------------------------------------------------------------
Total 371 kB/s | 66 MB 03:02
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : kernel-lt-core-5.4.217-1.el8.elrepo.x86_64 1/4
Running scriptlet: kernel-lt-core-5.4.217-1.el8.elrepo.x86_64 1/4
Installing : kernel-lt-modules-5.4.217-1.el8.elrepo.x86_64 2/4
Running scriptlet: kernel-lt-modules-5.4.217-1.el8.elrepo.x86_64 2/4
Installing : kernel-lt-5.4.217-1.el8.elrepo.x86_64 3/4
Installing : kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64 4/4
Running scriptlet: kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64 4/4
Running scriptlet: kernel-lt-core-5.4.217-1.el8.elrepo.x86_64 4/4
Running scriptlet: kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64 4/4
Verifying : kernel-lt-5.4.217-1.el8.elrepo.x86_64 1/4
Verifying : kernel-lt-core-5.4.217-1.el8.elrepo.x86_64 2/4
Verifying : kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64 3/4
Verifying : kernel-lt-modules-5.4.217-1.el8.elrepo.x86_64 4/4
Installed products updated.
Installed:
kernel-lt-5.4.217-1.el8.elrepo.x86_64 kernel-lt-core-5.4.217-1.el8.elrepo.x86_64
kernel-lt-devel-5.4.217-1.el8.elrepo.x86_64 kernel-lt-modules-5.4.217-1.el8.elrepo.x86_64
Complete!查看系统可用内核，并设置启动项
sudo awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg有知道的可以评论留言下，非常感谢！[8 不好使]
指定开机启动内核版本
grub2-set-default 0生成 grub 配置文件
[root@localhost ~]# grub2-set-default 0
[root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
done重启
reboot验证
cat /proc/version
uname -r
到此这篇关于Centos 8.2 升级内核通过elrepo源的文章就介绍到这了,更多相关Centos 8.2 升级内核内容请搜索编程学习网以前的文章希望大家以后多多支持编程学习网！
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