導(dǎo)入key
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
安裝elrepo 的yum源
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
安裝內(nèi)核
yum --enablerepo=elrepo-kernel install kernel-ml-devel kernel-ml -y
設(shè)置系統(tǒng)啟動(dòng)順序
$ cat /boot/grub2/grub.cfg | grep menuentry ?#查看系統(tǒng)啟動(dòng)項(xiàng)可以發(fā)現(xiàn)有最新版本的內(nèi)核4.16.8-1.el7.elrepo.x86_64
if [ x"${feature_menuentry_id}" = xy ]; then
??menuentry_id_option="--id"
??menuentry_id_option=""
export menuentry_id_option
menuentry 'CentOS Linux (4.16.8-1.el7.elrepo.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-514.26.2.el7.x86_64-advanced-b7792c31-ad03-4f04-a650-a72e861c892d' {
menuentry 'CentOS Linux (3.10.0-693.21.1.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-514.26.2.el7.x86_64-advanced-b7792c31-ad03-4f04-a650-a72e861c892d' {
menuentry 'CentOS Linux (3.10.0-514.26.2.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-514.26.2.el7.x86_64-advanced-b7792c31-ad03-4f04-a650-a72e861c892d' {
menuentry 'CentOS Linux (3.10.0-514.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-514.el7.x86_64-advanced-b7792c31-ad03-4f04-a650-a72e861c892d' {
menuentry 'CentOS Linux (0-rescue-fbdeed638cd24a09bc5ea0ae945cd465) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-fbdeed638cd24a09bc5ea0ae945cd465-advanced-b7792c31-ad03-4f04-a650-a72e861c892d' {
$ grub2-set-default 'CentOS Linux (4.16.8-1.el7.elrepo.x86_64) 7 (Core)' ?#設(shè)置最新版本內(nèi)核為默認(rèn)啟動(dòng)
$ grub2-editenv list ?#查看默認(rèn)啟動(dòng)的系統(tǒng)版本
uname -r
