Centos?8.2?升級(jí)內(nèi)核通過(guò)elrepo源的方法
一、Centos 8.2 升級(jí)內(nèi)核通過(guò)elrepo源
地址
查看linux內(nèi)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中可升級(jí)的內(nèi)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)當(dāng)然在我 二進(jìn)制安裝kubernetes 最后標(biāo)題報(bào)錯(cuò)有配置yum原
導(dǎo)入ELRepo軟件倉(cāng)庫(kù)的公共秘鑰
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
CentOS 8 系統(tǒng)安裝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提供的內(nèi)核版本
內(nèi)核版本簡(jiǎn)寫(xiě)說(shuō)明
kernel-lt(lt=long-term)長(zhǎng)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
安裝長(zhǎng)期支持的內(nèi)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!
查看系統(tǒng)可用內(nèi)核,并設(shè)置啟動(dòng)項(xiàng)
sudo awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg
有知道的可以評(píng)論留言下,非常感謝![8 不好使]
指定開(kāi)機(jī)啟動(dòng)內(nèi)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
重啟
reboot
驗(yàn)證
cat /proc/version uname -r
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