Xen入門 ppt

Transcription

1

2 Xen Xen 2

3 Fedora Core 5 IP IP IP /24 server.example.com HDD Web Disabled SELinux Disabled 3

4 Xen Virtual Machine Monitor 4 Hypervisor Xenoserver

5 5

6 6 Xen OS VT AMD-V OSWindows VMware VMotion

7 7 Paravirtualizing Virtual Machine Monitor Xen OS OS VMMhypercall hypercallos

8 Xen 8

9 Xen OS OS Linux NetBSD FreeBSD Solaris OpenBSD Plan9 Netware Domain0 OS Linux NetBSD βfreebsd α 9

10 Xen

11 Xen 11 A) B) XenSource VT 1. Linux 2. glibc

12 FC5 DVD-ROM /media/cdrecorder 12 /etc/fstab OSWeb /var/www/html/ 1. mount # mount -t iso9660 /dev/cdrom /var/www/html

13 Xen RPM # rpm -ivh /var/www/html/fedora/rpms/ rpm 1. sysfsutils bridge-utils 2. Xen Xen xen kernel-xen0 kernel-xenu 13

14 3 1. FC5 2. Domain0Xen 3. DomainU OS 1. Domain0 /etc/grub.conf default default=2 title 0 2. Domain0 14

15 DomainU DomainUOS A) xenguest-install.py 15 B) yum

16 1. DVD-ROM /var/www/html # mount -t iso9660 /dev/cdrom /var/www/html 2. Web # service httpd start 3. Web DVD 4. # useradd xen 16

17 # xenguest-install.py What is the name of your virtual machine? fc5vm1 How much RAM should be allocated (in megabytes)? 256 What would you like to use as the disk (path)? /home/xen/fc5vm1.img How large would you like the disk to be (in gigabytes)? 4 What is the install location? fc5vm1 256MB /home/xen/fc5vm1.img (4GB) 17

18 CUI English jp106 IP Use test mode vm1.example.com Web server X 18

19 19 DomainU xm # xm create -c fc5vm1 setup Firewall Disable Keyboard:Japanese Web # service httpd start Webhttp:// / iptables

20 DomainU Domain0Ctrl+] DomainUxm console ID xm list ID xm top xentop xm mem-set ID xm mem-max ID DomainU xm shutdown ID DomainU xm destroy ID DomainUxm save ID DomainUxm restore 20

21 DomainU 1. Domain0 2. DomainU ID 3. DomainU 4. xentop 5. DomainU 21

22 /etc/xen DomainU /home/xen 22

23 23 DomainU /etc/xen/fc5vm1 name = "fc5vm1" memory = "256" disk = [ 'file:/home/xen/fc5vm1.img,xvda,w' ] vif = [ mac=00:16:3e:1b:60:98 ] AC bootloader="/usr/bin/pygrub" on_reboot = 'restart' on_crash = 'restart'

24

25 OS OS A) B) tar,afio C) yum rpmstrap(red Hat ),debootstrap Debian 25

26 1. # dd if=/dev/zero of=/home/xen/fc5vm2.img bs=1024k count=1 seek= # mkfs.ext3 /home/xen/fc5vm2.img 3. # mount -o loop /home/xen/fc5vm2.img /mnt 26

27 boot DomainU DomainU / etc dev xen DomainU mnt etc dev DomainU 27

28 1. /mnt/dev # mkdir /mnt/dev # cp -a /dev/* /mnt/dev 2. /proc # mkdir /mnt/proc # mount -t proc none /mnt/proc 28

29 yum /root/yum-xen.conf [main] cachedir=/var/cache/yum debuglevel=2 logfile=/var/log/yum.log exclude=*-debuginfo gpgcheck=0 obsoletes=1 reposdir=/dev/null [base] name=fedora Core 5 - $basearch - Base #mirrorlist= baseurl= enabled=1 [updates-released] name=fedora Core 5 - $basearch - Released Updates #mirrorlist= baseurl= enabled=1 29 /etc/yum.conf /etc/yum.repo.d/

30 1. mirrorlist URL 2. URL 3. $ARCH i URL baseurl baseurl= 5. mirrorlist 30

31 Base 1. yum # yum check-update 2. yumfedora Core 5 Base # yum --installroot=/mnt -c yum-xen.conf -y groupinstall Base 31

32 DomainU 1. cp -a /lib/modules/ _fc5xenu /mnt/lib/modules 2. /mnt/etc/fstab # cp /etc/fstab /mnt/etc OK /mnt/etc/fstab 32

33 1. # cp /mnt/etc/modprobe.conf.dist /mnt/etc/modprobe.conf alias eth0 xennet 2. /etc/sysconfig/network # cp /etc/sysconfig/network /mnt/etc/sysconfig/network HOSTNAME=vm2.example.com 3. /etc/sysconfig/network-scripts/ifcfg-eth0 # cp /etc/sysconfig/network-scripts/ifcfg-eth0 /mnt/etc/sysconfig/network-scripts/ifcfg-eth0 IP HWADDRDomain0 HWADDR 33

34 Xen 1. # cp /etc/xen/fc5vm1 /etc/xen/fc5vm /etc/xen/fc5vm2 name = "fc5vm2" memory = "256" disk = [ 'file:/home/xen/fc5vm2.img,hda1,w' ] vif = [ 'mac=00:16:3e:1b:60:98' ] kernel = "/boot/vmlinuz _fc5xenu" ramdisk = "/boot/initrd _fc5xenu.img root = "/dev/hda1 ro"

35 DomainU 1. # umount /mnt/proc # umount /mnt 2. xm DomainU # xm create -c fc5vm2 3. root passwd 4. setup Firewall Network 5. yum Web # yum -y install httpd # service httpd start 35 Webhttp://

36 Xen Xen 36 DNS Web IP Xen Xen on CentOS DomainU CentOS on Fedora Core 5 VTCPU Xen Para-Virtualize