LorDong's Blog

1. How to Install or Upgrade to Kernel 4.20 in CentOS 7
来源: https://www.tecmint.com/install-upgrade-kernel-version-in-centos-7/ ，逐行复制到命令行执行，共9行：

uname -sr
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.rpm
yum --disablerepo="*" --enablerepo="elrepo-kernel" list available
yum --enablerepo=elrepo-kernel install kernel-ml -y
sed -i 's/GRUB_DEFAULT=saved/GRUB_DEFAULT=0/g' /etc/default/grub
grub2-mkconfig -o /boot/grub2/grub.cfg
reboot
uname -sr

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