Download replacement kernel
The CentOS6 kernel is replaced with: 2.6.32-504.3.3.el6.x86_64
The CentOS7 kernel is replaced with: 3.10.0-229.1.2.el7.x86_64
Check if the kernel is installed successfully
If it shows that there is this kernel in it, that’s right.
Restart to see if kernel is successfully replaced
Reboot machine and check the kernel again:
[root@centos7-test1 ~]# uname -r
3.10.0-229.1.2.el7.x86_64
[root@centos7-test1 ~]# rpm -ivh http://soft.91yun.pw/ISO/Linux/CentOS/kernel/kernel-3.10.0-229.1.2.el7.x86_64.rpm --force
Retrieving http://soft.91yun.pw/ISO/Linux/CentOS/kernel/kernel-3.10.0-229.1.2.el7.x86_64.rpm
Preparing... ################################# [100%]
Updating / installing...
1:kernel-3.10.0-229.1.2.el7 ################################# [100%]
bash
modsign
nss-softokn
i18n
network
ifcfg
drm
plymouth
btrfs
crypt
dm
dmraid
kernel-modules
lvm
mdraid
qemu
qemu-net
iscsi
nfs
oci
resume
rootfs-block
terminfo
udev-rules
virtfs
biosdevname
systemd
usrmount
base
fs-lib
microcode_ctl-fw_dir_override
shutdown
bash
modsign
rescue
nss-softokn
i18n
network
ifcfg
drm
plymouth
btrfs
crypt
dm
dmraid
kernel-modules
lvm
mdraid
qemu
qemu-net
iscsi
nfs
oci
resume
rootfs-block
terminfo
udev-rules
virtfs
biosdevname
systemd
usrmount
base
fs-lib
microcode_ctl-fw_dir_override
shutdown
[root@centos7-test1 ~]#