Shulou(Shulou.com)06/02 Report--

1. Install the public key

Sudo rpm-- import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

2. Download the kernel

Sudo rpm-Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

3. Check the kernel version

Sudo yum-y-disablerepo= "*"-enablerepo= "elrepo-kernel" list available

4. Install the latest version

Sudo yum-y-- enablerepo=elrepo-kernel install kernel-ml or yum-- enablerepo=elrepo-kernel install kernel-lt

5. Check all available kernels on the machine

Sudo awk-F\'$1 etc/grub2.cfg = "menuentry" {print iTunes + ":" $2}'/ etc/grub2.cfg

6. Edit the configuration file

Sudo vi / etc/default/grubGRUB_TIMEOUT=5GRUB_DEFAULT=0GRUB_DISABLE_SUBMENU=trueGRUB_TERMINAL_OUTPUT= "console" GRUB_CMDLINE_LINUX= "rd.lvm.lv=centos/root rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet" GRUB_DISABLE_RECOVERY= "true"

7. Write to the startup configuration file of grub2

Sudo grub2-mkconfig-o / boot/grub2/grub.cfg

8. Restart

Sudo reboot

9. View all the kernels in the system:

Rpm-qa | grep kernelyum remove package name sudo cat

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