一、安装Xen虚拟机
一、用yum自动安装xen虚拟机软件包# yum –y install xen*//用yum安装解决依赖问题
安装XEN需要的服务
# yum -y install kernel-xen*
安装XEN的相关内核
二、检查启动选项是否使用xen内核启动1、检查xen内核文件安装是否正常：文件位于/boot# ls –lh /boottotal 9.5M-rw-r–r– 1 root root 61K Mar 16 08:19 config-2.6.18-8.el5-rw-r–r– 1 root root 60K Mar 16 09:27 config-2.6.18-8.el5xendrwxr-xr-x 2 root root 1.0K Aug 15 14:47 grub-rw——- 1 root root 1.5M Aug 13 17:18 initrd-2.6.18-8.el5.img-rw——- 1 root root 1.5M Aug 15 14:47 initrd-2.6.18-8.el5xen.imgdrwx—— 2 root root 12K Aug 13 17:15 lost+found-rw-r–r– 1 root root 79K Apr 1 22:49 message-rw-r–r– 1 root root 82K Mar 16 08:20 symvers-2.6.18-8.el5.gz-rw-r–r– 1 root root 83K Mar 16 09:28 symvers-2.6.18-8.el5xen.gz-rw-r–r– 1 root root 865K Mar 16 08:19 System.map-2.6.18-8.el5-rw-r–r– 1 root root 848K Mar 16 09:27 System.map-2.6.18-8.el5xen-rw-r–r– 1 root root 1.7M Mar 16 08:19 vmlinuz-2.6.18-8.el5-rw-r–r– 1 root root 2.0M Mar 16 09:27 vmlinuz-2.6.18-8.el5xen-rw-r–r– 1 root root 269K Mar 16 07:51 xen.gz-2.6.18-8.el5-rwxr-xr-x 1 root root 595K Mar 16 09:43 xen-syms-2.6.18-8.el5
2、检查grub配置# cat /boot/grub/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-version.img#boot=/dev/sdadefault=1timeout=5splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle CentOS (2.6.18-8.el5xen)root (hd0,0)kernel /xen.gz-2.6.18-8.el5module /vmlinuz-2.6.18-8.el5xen ro root=LABEL=/module /initrd-2.6.18-8.el5xen.imgtitle CentOS (2.6.18-8.el5)root (hd0,0)kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/initrd /initrd-2.6.18-8.el5.img修改其中的default=1为default=0，启用xen内核
3、reboot重新启动计算机
4、重启后登录系统，检查XEN是否正常
5、 执行# xm listName ID Mem(MiB) VCPUs State Time(s)Domain-0 0 3919 4 r—– 16.9出现上述结果表示xen启动正常
6、检查log：#ls -lh /var/log/xentotal 8.0K-rwxr-xr-x 1 root root 36 Aug 15 15:43 xend-debug.log-rw-r–r– 1 root root 1.8K Aug 15 15:43 xend.log# cat /var/log/xen/xend-debug.logNothing to flush.Nothing to flush.表示一切正常
，每个人在他的人生发轫之初，总有一段时光，
