1：查看内存：grep memtotal /proc/meminfo查看swap：grep swaptotal /proc/meminfo2: 检查rpm包。red hat enterprise linux 4.0
1：查看内存：grep memtotal /proc/meminfo
查看swap：grep swaptotal /proc/meminfo
2: 检查rpm包。
red hat enterprise linux 4.0
 centos5.4
binutils-2.15.92.0.2-13.el4
 binutils-2.17.50.0.6-6.el5
compat-db-4.1.25-9
 compat-db-4.2.52-5.1
compat-libstdc++-296-2.96-132.7.2
 compat-libstdc++-33-3.2.3-61
control-center-2.8.0-12
 control-center-2.16.0-16.el5
gcc-3.4.3-22.1.el4
 gcc-4.1.2-42.el5
gcc-c++-3.4.3-22.1.el44
 gcc-c++-4.1.2-42.el5
glibc-2.3.4-2.9
 glibc-2.5-24
glibc-common-2.3.4-2.9
 glibc-common-2.5-24
gnome-libs-1.4.1.2.90-44.1
 libgnome-2.16.0-6.el5
libstdc++-3.4.3-22.1
 libstdc++-4.1.2-42.el5
libstdc++-devel-3.4.3-22.1
 libstdc++-devel-4.1.2-42.el5
make-3.80-5
 make-3.81-3.el5
pdksh-5.2.14-30
 ksh-20060214-1.7
sysstat-5.0.5-1
 sysstat-7.0.2-1.el5
xscreensaver-4.18-5.rhel4.2
 gnome-screensaver-2.16.1-8.el5
setarch-1.6-1
 setarch-2.0-1.1
libxp-1.0.0-8.1.el5
最主要的是 libxp-1.0.0-8.1.el5
如果他没有直接导致：
[oracle@linux database]$ ./runinstaller
starting oracle universal installer...
checking installer requirements...
checking operating system version: must be redhat-3, suse-9, redhat-4, unitedlinux-1.0, asianux-1 or asianux-2
                                      passed
all installer requirements met.
preparing to launch oracle universal installer from /tmp/orainstall2010-11-18_10-08-45pm.
please wait ...[oracle@linux database]$ exception in thread main java.lang.unsatisfiedlinkerror:
/tmp/orainstall2010-11-18_10-08-45pm/jre/1.4.2/lib/i386/libawt.so: libxp.so.6: cannot open shared object file: no such file or directory
        at java.lang.classloader$nativelibrary.load(native method)
        at java.lang.classloader.loadlibrary0(unknown source)
        at java.lang.classloader.loadlibrary(unknown source)
        at java.lang.runtime.loadlibrary0(unknown source)
        at java.lang.system.loadlibrary(unknown source)
        at sun.security.action.loadlibraryaction.run(unknown source)
        at java.security.accesscontroller.doprivileged(native method)
        at sun.awt.nativelibloader.loadlibraries(unknown source)
        at sun.awt.debughelper.(unknown source)
        at java.awt.component.(unknown source)
这个问题找了很久，才找到。最后才是这个包没有安装。
创建组：
groupadd oinstall
groupadd dba
groupadd oper
添加用户：
useradd -g oinstall -g dba,oper oracle
设置密码：passwd oracle
将oracle用户添加到oinstall组里面，他的两个辅助的组是dba,oper
在oracle的home目录下面创建u01目录，然后改变u01的权限。
chown oracle:oinstall /home/u01
后面是linux参数的配置：
/etc/sysctl.conf 文件
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
/etc/security/limits.conf file:
oracle              soft    nproc   2047
oracle              hard    nproc   16384
oracle              soft    nofile 1024
/etc/pam.d/login
session    required     pam_limits.so
/etc/profile
if [ $user = oracle ]; then
        if [ $shell = /bin/ksh ]; then
              ulimit -p 16384
              ulimit -n 65536
        else
              ulimit -u 16384 -n 65536
        fi
fi
查看shell：echo $shell
设置oracle的环境变量：
su oracle
vi .bash_profile
oracle_base=/u01/oracle
oracle_sid=orcl
export oracle_base oracle_sid
oracle_home=$oracle_base/u01/oracle/product/10.2.0
path=$oracle_home/bin:$path
unset=oracle_home
unset=tns_name
查看环境是否生效：env | grep ora
所有工作配置完了后到图形界面上面安装：
进入database目录，运行里面的runinstaller
命令：./runinstaller
后面跟windows上面安装的差不多。。。
不过有个地方不同，，在安装数据库软件后，会叫你去运行两个脚本。
/home/oracle/u01/orainventory/orainstroot.sh
/home/oracle/u01/oracle/product/10.2.0/db_1
这里直接按enter键即可。