环境：

windows7+vmware7+rhel6

操作：

以前写的记录不要了，下面用删除线表示，重新写了个脚本，免得每次在虚拟机中重新安装linux后都需要手工设置。

#!/bin/sh
#filename:configure_server.sh

######################################
#disableserviceandstopservice,enableserviceandstartservice
######################################
service_on="cpuspeedcrondnetworkrsyslogsshdsysstat"
#service_off="abrtdacpidatdautofscups"
service_off=`chkconfig--list|awk'{print$1}'|grep-v-E$(echo$service_on|tr"""|")`

fornamein$service_off
do
chkconfig$nameoff
service$namestop
done

fornamein$service_on
do
chkconfig$nameon
service$namestart
done

######################################
#disableselinux
######################################
setenforce0
sed-i's/^SELINUX=.*$/SELINUX=disabled/'/etc/selinux/config

######################################
#setstartupintoconsolemode
######################################
sed-i's/^id:5:initdefault:/id:3:initdefault:/'/etc/inittab

######################################
#showdetailstartupinformation
######################################
sed-i-e'/\s.*kernel/s/rhgb//'-e'/\s.*kernel/s/quiet//'/boot/grub/grub.conf

这里发现个问题：

如果用sed-i来修改menu.lst链接文件，会发现menu.lst链接文件变成了一个普通文件，而menu.lst实际指向的grub.conf文件并没有被修改，所以才有下面一段我记录的内容。上面贴的脚本文件已经是我修改过了的，这里是后来找到了原因补充做的一些记录。

这两个文件原本的属性如下：

-rw-------.1rootroot766Dec815:45grub.conf

lrwxrwxrwx.1rootroot11Dec814:25menu.lst->./grub.conf

运行脚本并重启虚拟机，但是系统启动时并没有显示详细信息，又是一个进度条的显示界面，但menu.lst文件确实修改了，不知道是什么原因。

启动后free看了一下只使用了76M内存。

[root@RHEL6A~]#free

totalusedfreesharedbufferscached

Mem:10313207628895503201322029612

-/+buffers/cache:33456997864

Swap:209714402097144

[root@RHEL6A~]#chkconfig--list|grep3:on

cpuspeed0:off1:on2:on3:on4:on5:on6:off

crond0:off1:off2:on3:on4:on5:on6:off

network0:off1:off2:on3:on4:on5:on6:off

rsyslog0:off1:off2:on3:on4:on5:on6:off

sshd0:off1:off2:on3:on4:on5:on6:off

sysstat0:off1:on2:on3:on4:on5:on6:off

刚安装完启动后：

[root@RHEL6A~]#chkconfig--list|grep'on'
NetworkManager0:off1:off2:on3:on4:on5:on6:off
abrtd0:off1:off2:off3:on4:off5:on6:off
acpid0:off1:off2:on3:on4:on5:on6:off
atd0:off1:off2:off3:on4:on5:on6:off
auditd0:off1:off2:on3:on4:on5:on6:off
autofs0:off1:off2:off3:on4:on5:on6:off
avahi-daemon0:off1:off2:off3:on4:on5:on6:off
bluetooth0:off1:off2:off3:on4:on5:on6:off
certmonger0:off1:off2:off3:off4:off5:off6:off
cgconfig0:off1:off2:on3:on4:on5:on6:off
cpuspeed0:off1:on2:on3:on4:on5:on6:off
crond0:off1:off2:on3:on4:on5:on6:off
cups0:off1:off2:on3:on4:on5:on6:off
haldaemon0:off1:off2:off3:on4:on5:on6:off
ip6tables0:off1:off2:on3:on4:on5:on6:off
iptables0:off1:off2:on3:on4:on5:on6:off
irqbalance0:off1:off2:off3:on4:on5:on6:off
iscsi0:off1:off2:off3:on4:on5:on6:off
iscsid0:off1:off2:off3:on4:on5:on6:off
libvirt-guests0:off1:off2:off3:on4:on5:on6:off
libvirtd0:off1:off2:off3:on4:on5:on6:off
lvm2-monitor0:off1:on2:on3:on4:on5:on6:off
mdmonitor0:off1:off2:on3:on4:on5:on6:off
messagebus0:off1:off2:on3:on4:on5:on6:off
microcode_ctl0:off1:off2:on3:on4:on5:on6:off
netconsole0:off1:off2:off3:off4:off5:off6:off
netfs0:off1:off2:off3:on4:on5:on6:off
network0:off1:off2:on3:on4:on5:on6:off
nfslock0:off1:off2:off3:on4:on5:on6:off
portreserve0:off1:off2:on3:on4:on5:on6:off
postfix0:off1:off2:on3:on4:on5:on6:off
restorecond0:off1:off2:off3:off4:off5:off6:off
rhnsd0:off1:off2:on3:on4:on5:on6:off
rpcbind0:off1:off2:on3:on4:on5:on6:off
rpcgssd0:off1:off2:off3:on4:on5:on6:off
rpcidmapd0:off1:off2:off3:on4:on5:on6:off
rsyslog0:off1:off2:on3:on4:on5:on6:off
sshd0:off1:off2:on3:on4:on5:on6:off
sysstat0:off1:on2:on3:on4:on5:on6:off
udev-post0:off1:on2:on3:on4:on5:on6:off

启动的我不需要的服务太多了，写个脚本禁用掉一些：

[root@RHEL6A~]#moredisable_serv.sh
#!/bin/sh
chkconfigatdoff
chkconfigautofsoff
chkconfigbluetoothoff
chkconfigcupsoff
chkconfigip6tablesoff
chkconfiglvm2-monitoroff
chkconfigmdmonitoroff
chkconfignetfsoff
chkconfignfslockoff

[root@RHEL6A~]#./disable_serv.sh

[root@RHEL6A~]#grep-v^#/etc/inittab
id:5:initdefault:

我不需要虚拟机每次都用图形界面启动，改一下/etc/inittab文件以便每次系统启动后进入文本模式。
[root@RHEL6A~]#vim/etc/inittab
[root@RHEL6A~]#grep-v^#/etc/inittab
id:3:initdefault:
[root@RHEL6A~]#

rhel6默认启动时只在界面下方显示一个进度条，我想要看到详细的启动信息，因此改一下/boot/grub/menu.lst文件：

[root@RHEL6A~]#grep-v^#/boot/grub/menu.lst
default=0
timeout=5
splashp_w_picpath=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
titleRedHatEnterpriseLinux(2.6.32-71.el6.i686)
root(hd0,0)
kernel/vmlinuz-2.6.32-71.el6.i686roroot=UUID=7a06ec30-9b6c-40cb-8726-4b3835f1ff4brd_NO_LUKSrd_NO_LVMrd_NO_MDrd_NO_DM.UTF-8SYSFONT=latarcyrheb-sun16KEYBOARDTYPE=pcKEYTABLE=uscrashkernel=autorhgbquiet
initrd/initramfs-2.6.32-71.el6.i686.img

把rhgbquiet删掉
[root@RHEL6A~]#vim/boot/grub/menu.lst
[root@RHEL6A~]#grep-v^#/boot/grub/menu.lst
default=0
timeout=5
splashp_w_picpath=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
titleRedHatEnterpriseLinux(2.6.32-71.el6.i686)
root(hd0,0)
kernel/vmlinuz-2.6.32-71.el6.i686roroot=UUID=7a06ec30-9b6c-40cb-8726-4b3835f1ff4brd_NO_LUKSrd_NO_LVMrd_NO_MDrd_NO_DM.UTF-8SYSFONT=latarcyrheb-sun16KEYBOARDTYPE=pcKEYTABLE=uscrashkernel=auto
initrd/initramfs-2.6.32-71.el6.i686.img
[root@RHEL6A~]#

先暂时OK了，重启一下看看。

[root@RHEL6A~]#free
totalusedfreesharedbufferscached
Mem:1359000153756120524401348856184
-/+buffers/cache:840841274916
Swap:209714402097144

用了153MB内存，好多了，先这样吧。

发现一点问题，把NetworkManager服务禁用后，在虚拟机rhel6中老是ping不通域名，但是能ping通dns地址。修改/etc/resolv.conf文件但是总是不起作用。后来把NetworkManager服务给启动起来，进入图形界面里用图形工具来设置网卡的dns参数后，重启network服务后就可以ping通域名了。NetworkManager这个要启动起来才能用图形界面的网络连接设置工具来设置网络参数。

NetworkManager这个服务还是要启用，这点资源暂时节省不了了，如果要在虚拟机里上网的话。不知道跟什么东西有关。