Linux system kernel Upgrade instance

Background introduction:

Install Docker in a Redhat/centos environment. Official documentation requires at least 3.8 Linux kernel, and Docker can only run on a 64-bit system. Since the kernel version of RHEL6 and CentOS6 is 2.6, the kernel must be upgraded first

Operation Step 郰:

(1) Yum installs 3.10 cores with AUFS module

[[email protected] ~]# uname-r2.6.32-573.el6.x86_64[[email protected] ~]# Cd/etc/yum.repos.d[[email protected] yum.repos.d]# wget http://www.hop5.in/yum/el6/hop5.repo[[email protected] yum.repos.d]# Yum install Kernel-ml-aufs Kernel-ml-aufs-devel

(2) Modify the Grub Master Profile/etc/grub.conf, set default=0 to indicate that the content under the first title is the default startup kernel (typically the newly installed kernel is in the first position)

[[email protected] ~]# vim /etc/grub.conf# grub.conf generated by  Anaconda## note that you do not have to rerun grub after  making changes to this file# notice:  you have a /boot  partition.  This means that#           all kernel and initrd paths are relative to /boot/, eg.#           root  (hd0,0) #           kernel /vmlinuz-version ro root=/dev/sda3#           initrd /initrd-[generic-]version.img#boot=/dev/sdadefault=1                 # #设置default = 0, which indicates that the content under the first title is the default boot kernel (typically a newly installed internalNucleus in first position) timeout=5splashimage= (hd0,0)/grub/splash.xpm.gzhiddenmenutitle centos  (3.10.5-3.el6.x86_64)         root  (hd0,0)          kernel /vmlinuz-3.10.5-3.el6.x86_64 ro root=uuid=014d414a-2fad-41ca-b7b3-c10fbe3a53b8  rd_no_luks rd_no_lvm lang=en_us. utf-8 rd_no_md sysfont=latarcyrheb-sun16 crashkernel=auto  keyboardtype=pc  keytable=us rd_no_dm rhgb quiet        initrd / initramfs-3.10.5-3.el6.x86_64.imgtitle centos 6  (2.6.32-573.el6.x86_64)          root  (hd0,0)         kernel / Vmlinuz-2.6.32-573.el6.x86_64 ro root=uuid=014d414a-2fad-41ca-b7b3-c10fbe3a53b8 rd_no_luks  rd_no_lvm lang=en_us. Utf-8 rd_no_md sysfont=latarcyrheb-sun16 crashkernel=auto  keyboardtype=pc keytable=us rd_no_dm rhgb quiet         initrd /initramfs-2.6.32-573.el6.x86_64.img

(3) Rebooting the system

[[email protected] ~]# uname-r3.10.5-3.el6.x86_64[[email protected] ~]# grep aufs/proc/filesystemsnodev aufs

The above two cases show that the kernel upgrade is successful, also support Aufs

This article is from the "it--Brother" blog, please make sure to keep this source http://402753795.blog.51cto.com/10788998/1785690

Linux system kernel Upgrade instance