内存中inode与磁盘中inode

　1、【适用CentOS操作系统】利用CentOS
Linux系统自带的yum命令安装、升级所需的程序库（RedHat等其他Linux发行版可从安装光盘中找到这些程序库的RPM包，进行安装）：

sudo
-s

LANG=C

yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng
libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc
glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl
curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl
openssl-devel openldap openldap-devel nss_ldap openldap-clients
openldap-servers