背景介紹:
在RedHat/CentOS環境下安裝Docker。官方文檔要求Linux kernel至少3.8以上,且docker隻能運作在64位的系統中。由于RHEL6和CentOS6的核心版本為2.6,是以必須要先更新核心
操作步郰:
(1)yum安裝帶aufs子產品的3.10核心
[root@xiaoya ~]# uname -r
2.6.32-573.el6.x86_64
[root@xiaoya ~]# cd /etc/yum.repos.d
[root@xiaoya yum.repos.d]# wget http://www.hop5.in/yum/el6/hop5.repo
[root@xiaoya yum.repos.d]# yum install kernel-ml-aufs kernel-ml-aufs-devel
[root@xiaoya ~]# 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/sda
default=1 ##設定default=0,表示第一個title下的内容為預設啟動的kernel(一般新安裝的核心在第一個位置)
timeout=5
splashp_w_picpath=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title 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 r
d_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.img
title 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
[root@xiaoya ~]# uname -r
3.10.5-3.el6.x86_64
[root@xiaoya ~]# grep aufs /proc/filesystems
nodev aufs