如何利用xen3.2 在 ubuntu 8.04虛擬Windows系統
1、安裝虛擬主機
更改root密碼
~#sudo passwd root
安裝xen服務器
~#apt-get install ubuntu-xen-server
安裝lvm2
~#apt-get install lvm2
~#reboot
2、準備LVM-backed VBDs
創建lvm分區
~# fdisk /dev/sda
The number of cylinders for this disk is set to 19457.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
p
Selected partition 4
First cylinder (2008-19457, default 2008):
Using default value 2008
Last cylinder or +size or +sizeM or +sizeK (2008-19457, default 19457):
Using default value 19457
Command (m for help): t
Partition number (1-5): 4
Hex code (type L to list codes): 8e
Changed system type of partition 4 to 8e (Linux LVM)
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.
查看分區情況
~# fdisk /dev/sda -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x624aa2e0
Device Boot Start End Blocks Id System
/dev/sda1 * 1 62 497983+ 83 Linux
/dev/sda2 63 1278 9767520 5 Extended
/dev/sda3 1279 2007 5855692+ 82 Linux swap / Solaris
/dev/sda4 2008 19457 140167125 8e Linux LVM
/dev/sda5 63 1278 9767488+ 83 Linux
重啟系統，使剛劃分的分區有效，否則你用pvcreate或其它工具對這個分區進行操作，會產生無此分區的錯誤
~#reboot
創建物理卷
~# pvcreate /dev/sda4
Physical volume "/dev/sda4" successfully created
建立卷組
~# vgcreate vg1 /dev/sda4
Volume group "vg1" successfully created
建立邏輯卷
~# lvcreate -L15G -nvbox01-winxp vg1
Logical volume "vbox01-winxp" created
格式化剛建立的邏輯卷
~# mkfs.ext3 /dev/vg1/vbox01-winxp
mke2fs 1.40.8 (13-Mar-2008)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
983040 inodes, 3932160 blocks
196608 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4026531840
120 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information:
done
This filesystem will be automatically checked every 27 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
掛載和卸載邏輯卷
~# mount /dev/vg1/vbox01-winxp /mnt
~# umount /mnt
3、建立虛擬客戶機(winxp)
建立虛擬機配置文件
~# vi /etc/xen/vbox01-winxp.cfg
kernel='/usr/lib64/xen/boot/hvmloader'
builder='hvm'
name='vbox01-winxp'
device_model='/usr/lib64/xen/bin/qemu-dm'
disk=['phy:/dev/vg1/vbox01-winxp,hda,w','phy:/dev/loop0,hdc:cdrom,r']
boot='dc'
memory='512'
vcpus=3
vif=['type=ioemu,mac=00:21:41:e2:00:01,bridge=eth0']
on_poweroff='destroy'
on_reboot='restart'
on_crash='restart'
vnc=1
vnclisten='0.0.0.0'
vncdisplay=0
vncunused=1
vncpasswd='pass'
sdl=0
usb=1
usbdevice='mouse'
掛載ISO到模擬光驅
查找空閑loop設備
~# losetup -f
/dev/loop0
掛載ISO鏡象到loop0
~# losetup -f /home/wxt/VRMPVOL_EN.iso
root@vbox01:~# losetup -a
/dev/loop0: [0805]:383528 (/home/wxt/VRMPVOL_EN.iso)
卸載模擬光驅
~# losetup -d /dev/loop0
重新掛載
~# losetup -f /home/wxt/VRMPVOL_EN.iso
開啟虛擬客戶機vbox01-winxp.cfg
~# xm create vbox01-winxp.cfg
Using config file "/etc/xen/vbox01-winxp.cfg".
Started domain vbox01-winxp
現在就可以用vnc連接到虛擬主機的IP，就可以使用虛擬客戶機vbox01-winxp了
關掉vbox01-winxp
~# xm shutdown vbox01-winxp
4、利用dd復制虛擬客戶機
# lvcreate -L15G -n vbox01-dcd vg1
Logical volume "vbox01-dcd" created
# dd if=/dev/vg1/vbox01-winxp of=/dev/vg1/vbox01-dcd
31457280+0 records in
31457280+0 records out
16106127360 bytes (16 GB) copied, 1592.12 s, 10.1 MB/s
~# vi /etc/xen/vbox01-dcd.cfg
kernel='/usr/lib64/xen/boot/hvmloader'
builder='hvm'
guest_os_type='winxp'
name='vbox01-dcd'
device_model='/usr/lib64/xen/bin/qemu-dm'
disk=['phy:/dev/vg1/vbox01-dcd,hda,w','phy:/dev/loop0,hdc:cdrom,r']
boot='dc'
memory='512'
shadow_memory='32'
vcpus='3'
acpi=1
apic=1
vif=['type=ioemu,mac=00:21:41:e2:00:02,bridge=eth0']
on_poweroff='destroy'
on_reboot='restart'
vnclisten='0.0.0.0'
vnc=1
vncdisplay=1
vncunused=1
vncpasswd='password'
sdl=0
usb=1
usbdevice='mouse'
相對于被復制的主機，這里主要改四個地方
主機名vbox01-winxp => vbox01-dcd
虛擬硬盤phy:/dev/vg1/vbox01-winxp => phy:/dev/vg1/vbox01-dcd
網卡MAC地址00:21:41:e2:00:01 => 00:21:41:e2:00:02
VNC連接端口vncdisplay=0 => vncdisplay=1
vbox01-dcd開機
~#xm create vbox01-dcd.cfg
~# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 2702 3 r----- 2687.9
vbox01-dcd 23 512 2 r----- 14.7
vbox01-winxp 22 512 2 -b---- 1293.5
~# netstat -ln|grep 590[0-9]
tcp 0 0 0.0.0.0:5900 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5901 0.0.0.0:* LISTEN
5、利用xm restore備份和恢復虛擬客戶機
~# xm save vbox01-winxp /mnt/winxp.back
~# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 988 3 r----- 27570.4
~# ls -l /mnt/winxp.back
-rwxr-xr-x 1 root root 553009093 2009-02-02 21:15 /mnt/winxp.back
~# xm create vbox01-winxp.cfg
Using config file "./vbox01-winxp.cfg".
Started domain vbox01-winxp
在vbox01-winxp內新建文件等操作，更改虛擬機狀態
~# xm shutdown vbox01-winxp
~# xm restore /mnt/winxp.back
~# xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 988 3 r----- 27603.9
vbox01-winxp 57 512 2 r----- 5.8
進入vbox01-winxp系統，又恢復到備份點了
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