Cobbler部署指南之安装虚拟化Xen系统篇 推荐

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《Cobbler部署指南》系列

1、《Cobbler部署指南之安装篇》http://dreamway.blog.51cto.com/blog/1281816/1166589

2、《Cobbler部署指南之配置管理篇[上文]》http://dreamway.blog.51cto.com/blog/1281816/1166921

3、《Cobbler部署指南之配置管理篇[下文]》http://dreamway.blog.51cto.com/blog/1281816/1166932

4、《Cobbler部署指南之yum仓库配置管理篇》http://dreamway.blog.51cto.com/blog/1281816/1166936

5、《Cobbler部署指南之Cobbler安装操作系统篇》http://dreamway.blog.51cto.com/blog/1281816/1166947

6、《Cobbler部署指南之安装虚拟化Xen系统篇》http://dreamway.blog.51cto.com/blog/1281816/1166950

7、《Cobbler部署指南之电源管理篇》http://dreamway.blog.51cto.com/blog/1281816/1166957

8、《Cobbler部署指南之FAQ处理篇》http://dreamway.blog.51cto.com/blog/1281816/1167078

7.5 安装Xen 宿主机

Cobbler PXE菜单里没有关于Xen虚拟机的系统版本，导入CentOS5.8系统镜像时，已经生成一个关于Xen的distros和profiles 即centos5.8-xen-x86_64，因为Cobbler知道它不可能PXE引导物理硬件。
如果你想安装Xen 宿主机，需要在安装脚本ks文件%packages部分添加xen包名 "kernel-xen"、“xen”。当然这样似乎不太方便，你可以使用命令“cobbler import”再导入一个关于xenserver宿主机的配置。
配置好ks文件，安装方法同步骤7.3。

7.6 安装Xen虚拟机

7.6.1 Xen宿主机安装koan

yum install koan -y

7.6.2 查看关于Xen宿主机的配置信息

koan --server=172.17.10.14 --list=profiles
- looking for Cobbler at http://172.17.10.14/cobbler_api centos5.8-xen-x86_64
centos6.4-x86_64
centos5.8-x86_64
centos6.3-x86_6

koan --server=172.17.10.14 --display --profile=centos5.8-xen-x86_64
- looking for Cobbler at http://172.17.10.14:80/cobbler_api - reading URL: http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 install_tree: http://172.17.10.14/cblr/links/centos5.8-xen-x86_64 name : centos5.8-xen-x86_64
distro : centos5.8-xen-x86_64
kickstart : http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 ks_meta : tree=http://@@http_server@@/cblr/links/centos5.8-xen-x86_64
install_tree : http://172.17.10.14/cblr/links/centos5.8-xen-x86_64 kernel : /var/www/cobbler/ks_mirror/centos5.8-x86_64/images/xen/vmlinuz
initrd : /var/www/cobbler/ks_mirror/centos5.8-x86_64/images/xen/initrd.img
kernel_options : ks=http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 ksdevice=link kssendmac lang= text
repos :
virt_ram : 512
virt_disk_driver : raw
virt_type : xenpv
virt_path :
virt_auto_boot : 0

7.6.3 安装Xen虚拟机

koan --server=172.17.10.14 --virt-name=testvm --virt --profile=centos5.8-xen-x86_64
- looking for Cobbler at http://172.17.10.14/cobbler_api - reading URL: http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 install_tree: http://172.17.10.14/cblr/links/centos5.8-xen-x86_64 libvirtd (pid 2749) is running...
downloading initrd initrd.img to /var/lib/xen/initrd.img
url=http://172.17.10.14/cobbler/images/centos5.8-xen-x86_64/initrd.img
- reading URL: http://172.17.10.14/cobbler/images/centos5.8-xen-x86_64/initrd.img downloading kernel vmlinuz to /var/lib/xen/vmlinuz
url=http://172.17.10.14/cobbler/images/centos5.8-xen-x86_64/vmlinuz
- reading URL: http://172.17.10.14/cobbler/images/centos5.8-xen-x86_64/vmlinuz Wed, 27 Mar 2013 16:12:17 DEBUG No conn passed to Guest, opening URI 'None'
libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName
libvir: Xen error : Domain not found: xenUnifiedDomainLookupByUUID
libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName
Wed, 27 Mar 2013 16:12:17 DEBUG Creating guest from:
<domain type='xen'>
<name>testvm</name>
<currentMemory>524288</currentMemory>
<memory>524288</memory>
<uuid>b0dee8f5-284b-1622-6191-2443ea10cc1c</uuid>
<os>
<type>linux</type>
<kernel>/var/lib/xen/vmlinuz</kernel>
<initrd>/var/lib/xen/initrd.img</initrd>
<cmdline>ks=http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 ksdevice=link kssendmac lang= text </cmdline>
</os>
<on_poweroff>destroy</on_poweroff>
<on_reboot>destroy</on_reboot>
<on_crash>destroy</on_crash>
<vcpu>1</vcpu>
<devices>
<disk type='file' device='disk'>
<source file='/var/lib/xen/images/testvm-disk0'/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
<source bridge='xenbr0'/>
<mac address='00:16:3e:28:12:79'/>
</interface>
<input type='mouse' bus='xen'/>
<graphics type='vnc' port='-1' keymap='en-us'/>
</devices>
</domain>

Wed, 27 Mar 2013 16:12:18 DEBUG Created guest, looking to see if it is running
Wed, 27 Mar 2013 16:12:18 DEBUG Saving XML boot config:
<domain type='xen'>
<name>testvm</name>
<currentMemory>524288</currentMemory>
<memory>524288</memory>
<uuid>b0dee8f5-284b-1622-6191-2443ea10cc1c</uuid>
<bootloader>/usr/bin/pygrub</bootloader>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<vcpu>1</vcpu>
<devices>
<disk type='file' device='disk'>
<source file='/var/lib/xen/images/testvm-disk0'/>
<target dev='xvda' bus='xen'/>
</disk>
<interface type='bridge'>
<source bridge='xenbr0'/>
<mac address='00:16:3e:28:12:79'/>
</interface>
<input type='mouse' bus='xen'/>
<graphics type='vnc' port='-1' keymap='en-us'/>
</devices>
</domain>

use virt-manager or reconnect with virsh console testvm

7.6.4 列出虚拟机列表

xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 7494 4 r----- 79.0
testvm 1 512 1 r----- 86.5

7.6.5 打开控制台管理虚拟机

xm console 1

或者

xm console testvm
Bootdata ok (command line is ks=http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 ksdevice=link kssendmac lang= text )
Linux version 2.6.18-308.el5xen (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-52)) #1 SMP Tue Feb 21 20:47:10 EST 2012
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000020800000 (usable)
No mptable found.
Built 1 zonelists. Total pages: 129529
Kernel command line: ks=http://172.17.10.14/cblr/svc/op/ks/profile/centos5.8-xen-x86_64 ksdevice=link kssendmac lang= text
Initializing CPU#0
…………略…………
Write protecting the kernel read-only data: 503k
Restarting system.

默认虚拟机配置文件在目录/etc/xen下

7.6.6 启动虚拟机

xm create -c testvm

在SecureCRT显示的启动、登录内容如下：

pyGRUB version 0.6
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
³ CentOS (2.6.18-308.el5xen) ³
³ ³
³ ³
³ ³
³ ³
³ ³
³ ³
³ ³
ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ
Use the ˜ and ™ keys to select which entry is highlighted.
Press enter to boot the selected OS, 'e' to edit the
commands before booting, 'a' to modify the kernel arguments
before booting, or 'c' for a command line.

………虚拟机启动过程略……………

登录界面

CentOS release 5.8 (Final)
Kernel 2.6.18-308.el5xen on an x86_64

host-d-115.sys.hexun login: root
Password:

查看虚拟机主机名

[root@host-d-115 ~]# hostname
host-d-115.sys.hexun

查看ip

[root@host-d-115 ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:16:3E:28:12:79
inet addr:172.17.188.115 Bcast:172.17.255.255 Mask:255.255.0.0
inet6 addr: fe80::216:3eff:fe28:1279/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:325 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25014 (24.4 KiB) TX bytes:1298 (1.2 KiB)

到此Xen虚拟机已经通过Cobbler安装完毕。

请看《Cobbler部署指南》系列续文

《Cobbler部署指南》系列文档下载：http://down.51cto.com/data/745895