Recently K8s ready to install on Centos, feeling kernel version requires a high point, so the upgrade!
1, backup the grub.cfg
CP /boot/grub2/grub.cfg /boot/grub2/grub.cfg_bak
2,
Sed -i 'S / rhgb quiet / quiet / G' /boot/grub2/grub.cfg
. 3,
RPM - IVH Kernel-ml-4.19.9-1.el7.elrepo.x8664.rpm
4,
CAT /boot/grub2/grub.cfg | grep menuentry
grub2-the SET-default "CentOS Linux (4.19.9-1.el7.elrepo .x86_64). 7 (Core) "
grub2-editenv List
yum the install Perl -Y
RPM -ivh Kernel-ml-devel-4.19.8-1.el7.elrepo.x8664.rpm
Note: These two kernel files, Ali cloud in my warehouse to save ~