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This article introduces kubernetes how to manually deploy kernel upgrade, the content is very detailed, interested friends can use for reference, I hope it can be helpful to you.

Upgrade the kernel version to 4.4

2.1 check to install the kernel dependency package [!-f / usr/bin/perl] & & yum install perl-y2.2 configure elrepo source rpm-- import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm-Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm2.3 installation maintenance kernel yum-- disablerepo= "*"-- enablerepo= "elrepo-kernel" list available-- showduplicates | grep-Po'^ kernel-lt.x86_64\ s +\ K\ S+ (? = .el7) 'yum-- disablerepo= "*-- enablerepo=elrepo-kernel install-y kernel-lt { -devel} 2.4Modification of the kernel boot sequence grub2-set-default 0 & & grub2-mkconfig-o / etc/grub2.cfg2.5 View the installed kernel version grubby-default-kernel2.6 docker's official kernel check script recommendation (RHEL7/CentOS7: User namespaces disabled Add 'user_namespace.enable=1' to boot command line) Open grubby-- args= "user_namespace.enable=1"-- update-kernel= "$(grubby-- default-kernel)" 2.7 restart the server reboot2.8 using the following command to check the default kernel boot version # uname-a Linux master-1 4.4.229-1.el7.elrepo.x86_64 # 1 SMP Wed Jul 1 10:43:08 EDT 2020 x86 "64" 64 x86 "64 GNU/Linux off This is how to manually deploy kernel upgrades in kubernetes. I hope the above content can be of some help to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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