CentOS 6.5 ships with kernel 2.6 and it's a quite old for now(CentOS 7 already comes with 3.10),but compile a kernel on CentOS is a mess and it's not recommended. But fear no more,guys fromElrepo took care of that for us and made a package,let's see how we can install it.
Install the kernel
<span style="font-size:14px;">rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm </span>
Install the kernel
<span style="font-size:18px;">yum --enablerepo=elrepo-kernel install kernel-lt <strong> </strong></span>
Configure grub
You also need edit /etc/grub.conf
to change the kernel order,change default from 1 to 0,must looks like the below:
default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (3.10.55-1.el6.elrepo.x86_64) root (hd0,0) kernel /vmlinuz-3.10.55-1.el6.elrepo.x86_64 ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root rd_NO_DM KEYBOARDTYPE=pc KEYTABLE=br-abnt2 rhgb quiet
Reboot and profit!
reboot
Now you have a fresh(not so much) kernel on CentOS.
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