rpm -qa|grep jdk
确认gcj 的版本号
rpm -qa | grep gcj
卸载gcj
yum -y remove java-1.4.2-gcj-compat
从SUN 下载jdk-1_5_0_14-linux-i586-rpm.bin 或jdk-1_5_0_14-linux-i586.bin
mkdir /usr/java
cd /usr/java
1. jdk-1_5_0_14-linux-i586-rpm.bin 文件安装
chmod 777 jdk-1_5_0_14-linux-i586-rpm.bin
rpm -ivh jdk-1_5_0_14-linux-i586.rpm
2. jdk-1_5_0_14-linux-i586.bin 文件安装
chmod u+x jdk-1_5_0_14-linux-i586.bin
./jdk-1_5_0_14-linux-i586.bin
添加环境变量
vi /etc/profile
export JAVA_HOME=/usr/local/java/jdk1.6.0_23
export
CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
reboot 重启生效
##################################
xen 管理
查看虚拟主机列表
xm list
使用文本方式连接虚拟系统
xm console test
启动虚拟主机
xm create test
虚拟机和主机切换
ctrl+]
关闭虚拟主机
xm shutdown 主机名
虚拟机克隆(关闭后克隆)
virt-clone -o test -n test1 -f /data/xen/test1.img
虚拟机增加硬盘
dd if=/dev/zero of=/data/xen/test.img bs=1M count=8
编辑原来配置文件，添加新磁盘文件
vi /etc/xen/vm11
name = "vm11"
uuid = "91b0200b-eb41-46d3-1e11-ee2a87035f24"
maxmem = 128
memory = 128
vcpus = 1
bootloader = "/usr/bin/pygrub"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
disk = [ "tap:aio:/data/vm11.img,xvda,w", "tap:aio:/data/vm11b.img,xvdb,w" ]
vif = [ "mac=00:16:36:75:8a:ea,bridge=virbr0,script=vif-bridge" ]
启动XEN 虚拟机并登陆测试新加的磁盘
增加虚拟机网卡
cat /etc/xen/vm11
name = "vm11"
uuid = "91b0200b-eb41-46d3-1e11-ee2a87035f24"
maxmem = 512
memory = 128
vcpus = 1
bootloader = "/usr/bin/pygrub"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
disk = [ "tap:aio:/data/vm11.img,xvda,w" ]
vif = [ "mac=00:16:36:75:8a:ea,bridge=xenbr0,script=vif-bridge",
"mac=00:16:36:75:8a:eb,bridge=xenbr0,script=vif-bridge" ]
以上所述是小编给大家介绍的linux运维常用命令，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对易采站长站网站的支持！
