解放勞動力—Cobbler批量自動化部署多版本系統

Cobbler · 發表 2018-11-22 15:30:00

摘要： 1 Cobbler 介紹 Cobbler 是一個 Linux 伺服器安裝的服務，可以通過網路啟動(PXE)的方式來快速安裝、重灌物理伺服器和虛擬機器，同時還可以管理 DHCP，DNS 等。 Cobbler 可以使用命令列方式管理，也提供了基於 Web 的介面管理工具(cobbler-...

1 Cobbler 介紹

Cobbler 是一個 Linux 伺服器安裝的服務，可以通過網路啟動(PXE)的方式來快速安裝、重灌物理伺服器和虛擬機器，同時還可以管理 DHCP，DNS 等。

Cobbler 可以使用命令列方式管理，也提供了基於 Web 的介面管理工具(cobbler-web)，還提供了API 介面，可以方便二次開發使用。

Cobbler 是較早前的 kickstart 的升級版，優點是比較容易配置，還自帶 web 介面比較易於管理。

Cobbler 內建了一個輕量級配置管理系統，但它也支援和其它配置管理系統整合，如 Puppet，暫時不支援 SaltStack。

Cobbler 官網：https://fedorahosted.org/cobbler/

1.1 Cobbler 整合的服務

PXE 服務支援

DHCP 服務管理

DNS 服務管理(可選 bind,dnsmasq)

電源管理

Kickstart 服務支援

YUM 倉庫管理

TFTP(PXE 啟動時需要)

Apache(提供 kickstart 的安裝源，並提供定製化的 kickstart 配置)

1.2 Cobbler的工作流程

2 Cobbler安裝

#必要服務

（1）cobbler （cobbler 的核心）

（2）httpd （提供 cobbler 的 web 介面）

（3）dhcpd （為自動安裝系統分配 IP 地址）

（4）epel-release （為之提供 yum 源）

（5）rsync （cobbler 需要同步資訊）

（6）cobbler-web （cobbler 的一個 web 外掛）

（7）xinetd （為 rsync 和 tftp 的守護程序）

（8）tftp （傳送安裝的一些檔案的類似 ftp）

1. 關閉防火牆和 selinux

/etc/init.d/iptables stop
chkconfig iptables off
getenforce
sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config

2.開始安裝cobbler

#1. 安裝第三方源：

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
yum repolist

升級Django大於1.4版本否則安裝cobbler-web時報以下錯(如果不用可以先忽略)：

Error: Package: cobbler-web-2.6.11-7.git95749a6.el6.noarch (epel)

Requires: Django >= 1.4

升級Django方法如下：

wget "https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz#md5=834b2904f92d46aaa333267fb1c922bb" --no-check-certificat
tar -xf pip-1.5.4.tar.gz
cd pip-1.5.4
python setup.py install
pip install Django==1.5.1

#2.cobbler安裝相關服務

yum -y install cobbler dhcp tftp-server pykickstart httpd xinetd

#3.檢查

rpm -qa cobbler dhcp tftp-server pykickstart httpd xinetd

#4.檢視cobbler配置檔案

rpm -ql cobbler

/etc/cobbler # 配置檔案目錄
/etc/cobbler/settings # cobbler 主配置檔案，這個檔案是 YAML 格式，Cobbler 是 python 寫的程式。
/etc/cobbler/dhcp.template # DHCP 服務的配置模板
/etc/cobbler/tftpd.template # tftp 服務的配置模板
/etc/cobbler/rsync.template # rsync 服務的配置模板
/etc/cobbler/iso # iso 模板配置檔案目錄
/etc/cobbler/pxe # pxe 模板檔案目錄
/etc/cobbler/power # 電源的配置檔案目錄
/etc/cobbler/users.conf # Web 服務授權配置檔案
/etc/cobbler/users.digest #用於 web 訪問的使用者名稱密碼配置檔案
/etc/cobbler/dnsmasq.template #DNS 服務的配置模板
/etc/cobbler/modules.conf # Cobbler 模組配置檔案
/var/lib/cobbler # Cobbler 資料目錄
/var/lib/cobbler/config #配置檔案
/var/lib/cobbler/kickstarts # 預設存放 kickstart 檔案
/var/lib/cobbler/loaders # 存放的各種載入程式
/var/www/cobbler # 系統安裝映象目錄
/var/www/cobbler/ks_mirror # 匯入的系統映象列表
/var/www/cobbler/images # 匯入的系統映象啟動檔案
/var/www/cobbler/repo_mirror # yum 源儲存目錄
/var/log/cobbler # 日誌目錄
/var/log/cobbler/install.log # 客戶端系統安裝日誌
/var/log/cobbler/cobbler.log # cobbler 日誌

#啟動相關服務

/etc/init.d/httpd restart
/etc/init.d/cobblerd restart
/etc/init.d/xinetd restart

#4. 檢查cobbler配置會列出存在的問題，我們只要把問題都解決都ok了

#cobbler check的檢查命令

[root@localhost ~]# cobbler check

The following are potential configuration items that you may want to fix:

1 : The 'server' field in /etc/cobbler/settings must be set to something other than localhost, or kickstarting features will not work.This should be a resolvable hostname or IP for the boot server as reachable by all machines that will use it.
2 : For PXE to be functional, the 'next_server' field in /etc/cobbler/settings must be set to something other than 127.0.0.1, and should match the IP of the boot server on the PXE network.
3 : change 'disable' to 'no' in /etc/xinetd.d/tftp
4 : some network boot-loaders are missing from /var/lib/cobbler/loaders, you may run 'cobbler get-loaders' to download them, or, if you only want to handle x86/x86_64 netbooting, you may ensure that you have installed a *recent* version of the syslinux package installed and can ignore this message entirely.Files in this directory, should you want to support all architectures, should include pxelinux.0, menu.c32, elilo.efi, and yaboot. The 'cobbler get-loaders' command is the easiest way to resolve these requirements.
5 : change 'disable' to 'no' in /etc/xinetd.d/rsync
6 : debmirror package is not installed, it will be required to manage debian deployments and repositories
7 : The default password used by the sample templates for newly installed machines (default_password_crypted in /etc/cobbler/settings) is still set to 'cobbler' and should be changed, try: "openssl passwd -1 -salt 'random-phrase-here' 'your-password-here'" to generate new one
8 : fencing tools were not found, and are required to use the (optional) power management features. install cman or fence-agents to use them
Restart cobblerd and then run 'cobbler sync' to apply changes.

#解決方法

1. /etc/cobbler/settings 中'server'配置成具體的伺服器 ip 地址，我這修改為內網的
2. /etc/cobbler/settings 中'next_server'也修改為具體的 ip 地址
3. /etc/xinetd.d/tftp 中把'disable' 從'yes' 'no'
4. 執行'cobbler get-loaders'網路引導載入程式
5. 開啟 rsync 服務並設定為開機啟動，systemctl start rsyncd、systemctl enable rsyncd
6. debian 系統需要安裝 debmirror 包，我們這裡是 centos 所以不用安裝
7. "openssl passwd -1 -salt 'random-phrase-here' 'your-password-here'"生成新密碼並修改配置/etc/cobbler/settings 中'default_password_crypted'欄位
8. 應用修改後執行service restart cobblerd、cobbler sync

針對以上問題進行整改：

cp /etc/cobbler/settings{,.ori} && ll /etc/cobbler/settings{,.ori}
sed -i 's/server: 127.0.0.1/server: 192.168.247.141/' /etc/cobbler/settings && grep "server: 192.168.247.141" /etc/cobbler/settings
sed -i 's/next_server: 127.0.0.1/next_server: 192.168.247.141/' /etc/cobbler/settings
sed -i 's/manage_dhcp: 0/manage_dhcp: 1/' /etc/cobbler/settings && grep 'manage_dhcp: 1' /etc/cobbler/settings
sed -i 's/pxe_just_once: 0/pxe_just_once: 1/' /etc/cobbler/settings && grep 'pxe_just_once: 1' /etc/cobbler/settings
vim /etc/cobbler/settings
或者手動修改如下地方：
manage_dhcp: 1
manage_rsync: 1

#生成新密碼並修改配置/etc/cobbler/settings 中'default_password_crypted'欄位

hejianlai=`openssl passwd -1 -salt 'hejianlai' '123456'`
echo $hejianlai
#注意: "default_password_crypted: "後面有一個空格的，如果不留空格會報錯
sed -i "/default_password_crypted/c\default_password_crypted: \"$hejianlai"\" /etc/cobbler/settings

#網路引導載入程式會從官網自動下載

[root@localhost ~]# cobbler get-loaders

task started: 2018-11-21_005408_get_loaders
task started (id=Download Bootloader Content, time=Wed Nov 21 00:54:08 2018)
path /var/lib/cobbler/loaders/README already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.elilo already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.yaboot already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/COPYING.syslinux already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/elilo-ia64.efi already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/yaboot already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/pxelinux.0 already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/menu.c32 already exists, not overwriting existing content, use --force if you wish to update
path /var/lib/cobbler/loaders/grub-x86.efi already exists, not overwriting existing content, use --force if you wish to update
downloading http://cobbler.github.io/loaders/grub-0.97-x86_64.efi to /var/lib/cobbler/loaders/grub-x86_64.efi

#下載的內容

ll /var/lib/cobbler/loaders/

#修改rsync、tftp的配置檔案

[root@localhost ~]# vim /etc/xinetd.d/rsync
disable = no
[root@localhost ~]# vim /etc/xinetd.d/tftp
disable = no
#重啟
[root@localhost loaders]# /etc/init.d/xinetd restart
Stopping xinetd:[FAILED]
Starting xinetd:[OK]
[root@localhost loaders]# /etc/init.d/cobblerd restart
Stopping cobbler daemon:[OK]
Starting cobbler daemon:[OK]

#再檢查

[root@localhost loaders]# cobbler check

# 修改cobbler的 dhcp 模版，不要直接修改 dhcp 本身的配置檔案，因為 cobbler 會覆蓋,下面只列出修改的部分

vim /etc/cobbler/dhcp.template

...
subnet 192.168.247.0 netmask 255.255.255.0 {
option routers192.168.247.5;
option domain-name-servers 192.168.247.5;
option subnet-mask255.255.255.0;
range dynamic-bootp192.168.247.100 192.168.247.254;
...

5 同步cobbler配置出現TASK COMPLETE表示成功

# 同步最新 cobbler 配置，它會根據配置自動修改 dhcp 等服務。

[root@localhost ~]# cobbler sync
...
*** TASK COMPLETE ***

#設定開機自啟動

chkconfig httpd on
chkconfig xinetd on
chkconfig cobblerd on
chkconfig dhcpd on

#重啟所有服務

/etc/init.d/httpd restart
/etc/init.d/xinetd restart
/etc/init.d/cobblerd restart
/etc/init.d/dhcpd restart

6 掛載光碟讓 cobbler 處理生成

#1.掛載光碟或者匯入系統映象的方式，匯入系統映象請看下面部署多個系統部分內容。

mount /dev/cdrom /mnt/

# 匯入系統映象

[root@localhost ~]# cobbler import --path=/mnt/ --name=CentOS-6.8-x86_64 --arch=x86_64
# --path 映象路徑
# --name 為安裝源定義一個名字
# --arch 指定安裝源是 32 位、64 位、ia64, 目前支援的選項有: x86│x86_64│ia64
# 安裝源的唯一標示就是根據 name 引數來定義，本例匯入成功後，安裝源的唯一標示就是

# 檢視映象列表

[root@localhost ~]# cobbler distro list
CentOS-6.8-x86_64

# 映象存放目錄，cobbler 會將映象中的所有安裝檔案拷貝到本地一份，放在/var/www/cobbler/ks_mirror 下的 CentOS-6.8-x86_64 目錄下。因此/var/www/cobbler目錄必須具有足夠容納安裝檔案的空間

[root@localhost ~]# ll /var/www/cobbler/ks_mirror/CentOS-6.8-x86_64

total 276
-r--r--r-- 1 root root14 May 222016 CentOS_BuildTag
dr-xr-xr-x 3 root root4096 May 222016 EFI
-r--r--r-- 1 root root212 Nov 272013 EULA
-r--r--r-- 1 root root18009 Nov 272013 GPL
dr-xr-xr-x 3 root root4096 May 232016 images
dr-xr-xr-x 2 root root4096 May 222016 isolinux
dr-xr-xr-x 2 root root 212992 May 232016 Packages
-r--r--r-- 1 root root1359 May 222016 RELEASE-NOTES-en-US.html
dr-xr-xr-x 2 root root4096 May 232016 repodata
-r--r--r-- 1 root root1706 Nov 272013 RPM-GPG-KEY-CentOS-6
-r--r--r-- 1 root root1730 Nov 272013 RPM-GPG-KEY-CentOS-Debug-6
-r--r--r-- 1 root root1730 Nov 272013 RPM-GPG-KEY-CentOS-Security-6
-r--r--r-- 1 root root1734 Nov 272013 RPM-GPG-KEY-CentOS-Testing-6
-r--r--r-- 1 root root3380 May 232016 TRANS.TBL

開啟瀏覽器輸入 ofollow,noindex">http://192.168.247.141/cobbler/ks_mirror/CentOS-6.8-x86_64/

7 指定ks.cfg檔案及調整核心引數

# Cobbler 的 ks.cfg 檔案存放位置

[root@localhost ~]# cd/var/lib/cobbler/kickstarts/
[root@localhost kickstarts]# ll
total 60
-rw-r--r-- 1 root root115 Nov 21 01:59 default.ks
-rw-r--r-- 1 root root22 Nov 21 01:59 esxi4-ks.cfg
-rw-r--r-- 1 root root22 Jul 142016 esxi5-ks.cfg
drwxr-xr-x 2 root root 4096 Nov 21 00:37 install_profiles
-rw-r--r-- 1 root root 1424 Jul 142016 legacy.ks
-rw-r--r-- 1 root root292 Jul 142016 pxerescue.ks
-rw-r--r-- 1 root root 2916 Jul 142016 sample_autoyast.xml
-rw-r--r-- 1 root root 1825 Nov 21 01:59 sample_end.ks
-rw-r--r-- 1 root root0 Jul 142016 sample_esx4.ks
-rw-r--r-- 1 root root324 Jul 142016 sample_esxi4.ks
-rw-r--r-- 1 root root386 Jul 142016 sample_esxi5.ks
-rw-r--r-- 1 root root 1784 Jul 142016 sample.ks
-rw-r--r-- 1 root root 3419 Jul 142016 sample_old.seed
-rw-r--r-- 1 root root 5879 Jul 142016 sample.seed

# 在第一次匯入系統映象後，Cobbler 會給映象指定一個預設的 kickstart 自動安裝檔案在 /var/lib/cobbler/kickstarts 下的 sample_end.ks 。

預設用sample_end.ks檔案，以下是新建的一個名字為

CentOS-6.8-x86_64.cfg

：

# kickstart template for Fedora 8 and later.
# (includes %end blocks)
# do not use with earlier distros
 
#platform=x86, AMD64, or Intel EM64T
# System authorization information
#auth--useshadow--enablemd5
authconfig --enableshadow --passalgo=sha512
# System bootloader configuration
bootloader --location=mbr --driveorder=sda --append="nomodeset crashkernel=auto rhgb quiet"
# Partition clearing information
clearpart --all --initlabel
# Use text mode install
text
# Firewall configuration
firewall --disabled
# Run the Setup Agent on first boot
firstboot --disable
# System keyboard
keyboard us
# System language
lang en_US
# Use network installation
url --url=$tree
# If any cobbler repo definitions were referenced in the kickstart profile, include them here.
$yum_repo_stanza
# Network information
$SNIPPET('network_config')
# Reboot after installation
reboot
logging --level=info
 
#Root password
rootpw --iscrypted $default_password_crypted
# SELinux configuration
selinux --disabled
# Do not configure the X Window System
skipx
# System timezone
timezoneAsia/Shanghai
# Install OS instead of upgrade
install
# Clear the Master Boot Record
zerombr
# Allow anaconda to partition the system as needed
#autopart
part /boot --fstype=ext4 --asprimary --size=500
part swap --asprimary --size=1024
part / --fstype=ext4 --grow --asprimary --size=20480
 
%pre
$SNIPPET('log_ks_pre')
$SNIPPET('kickstart_start')
$SNIPPET('pre_install_network_config')
# Enable installation monitoring
$SNIPPET('pre_anamon')
%end
 
%packages
@base
@compat-libraries
@core
@debugging
@development
@dial-up
@hardware-monitoring
@performance
@server-policy
sgpio
device-mapper-persistent-data
systemtap-client
tree
lrzsz
telnet
nmap
dos2unix
%end
 
%post --nochroot
$SNIPPET('log_ks_post_nochroot')
%end
 
%post
$SNIPPET('log_ks_post')
# Start yum configuration
$yum_config_stanza
# End yum configuration
$SNIPPET('post_install_kernel_options')
$SNIPPET('post_install_network_config')
$SNIPPET('func_register_if_enabled')
$SNIPPET('download_config_files')
$SNIPPET('koan_environment')
$SNIPPET('redhat_register')
$SNIPPET('cobbler_register')
# Enable post-install boot notification
$SNIPPET('post_anamon')
# Start final steps
$SNIPPET('kickstart_done')
# End final steps
%end

# 檢視安裝映象檔案資訊

cobbler distro report --name=CentOS-6.8-x86_64

# 檢視指定的 profile 設定

cobbler profile report --name=CentOS-6.8-x86_64

# 編輯profile，修改關聯的ks檔案

cobbler profile edit --name=CentOS-6.8-x86_64 --kickstart=/var/lib/cobbler/kickstarts/CentOS-6.8-x86_64.cfg

# 每次修改完都要同步一次

cobbler sync

ok，這時我們新建虛擬機器配置分配高點就能成功自動安裝系統了！！

安裝中。。。

安裝完畢預設密碼：root/123456,IP地址會自動分配。耶。。。

3 部署多版本系統

1. 匯入光碟

(1)掛載光碟

給虛擬機器配置兩個光碟，分別掛載CentOS6和CentOS7的光碟，注意如果/mnt有掛載要先umonut。

掛載光碟到目錄：

mkdir /mnt/centos6
mkdir /mnt/centos7
mount /dev/sr0 /mnt/centos6
mount /dev/sr1 /mnt/centos7

如果是拷貝的iso檔案到伺服器，可以mount iso到目錄：

mkdir /mnt/centos6
mkdir /mnt/centos7
mount -o loop CentOS-6.9-x86_64-minimal.iso /mnt/centos6
mount -o loop CentOS-7-x86_64-Minimal-1708.iso /mnt/centos6

(2) cobbler import 匯入光碟

cobbler import --name=CentOS6.9 --path=/mnt/centos6 && cobbler import --name=CentOS7.4 --path=/mnt/centos7

如圖可以看到，我們添加了兩個發行版本到 distros ,也建立了兩個 profile (使用的是sample的ks檔案），名字都是 CentOSx.x-x86_64 ，是cobblerd自動偵測了是x86_64的版本，自動新增到上面 import 命令的 name 後面。

#檢視發行版檔案

cobbler distro list
cobbler profile list

#檢視匯入的發行版作業系統資訊( distro )：

cobbler distro report --name=CentOS6.9-x86_64

#編寫ks檔案

放到/var/lib/cobbler/kickstarts目錄下：

ks-centos6-mini.cfg模板;

# kickstart template for Fedora 8 and later.
# (includes %end blocks)
# do not use with earlier distros
 
#platform=x86, AMD64, or Intel EM64T
# System authorization information
#auth--useshadow--enablemd5
authconfig --enableshadow --passalgo=sha512
# System bootloader configuration
bootloader --location=mbr --driveorder=sda --append="nomodeset crashkernel=auto rhgb quiet"
# Partition clearing information
clearpart --all --initlabel
# Use text mode install
text
# Firewall configuration
firewall --disabled
# Run the Setup Agent on first boot
firstboot --disable
# System keyboard
keyboard us
# System language
lang en_US
# Use network installation
url --url=$tree
# If any cobbler repo definitions were referenced in the kickstart profile, include them here.
$yum_repo_stanza
# Network information
$SNIPPET('network_config')
# Reboot after installation
reboot
logging --level=info
 
#Root password
rootpw --iscrypted $default_password_crypted
# SELinux configuration
selinux --disabled
# Do not configure the X Window System
skipx
# System timezone
timezoneAsia/Shanghai
# Install OS instead of upgrade
install
# Clear the Master Boot Record
zerombr
# Allow anaconda to partition the system as needed
#autopart
part /boot --fstype=ext4 --asprimary --size=500
part swap --asprimary --size=1024
part / --fstype=ext4 --grow --asprimary --size=20480
 
%pre
$SNIPPET('log_ks_pre')
$SNIPPET('kickstart_start')
$SNIPPET('pre_install_network_config')
# Enable installation monitoring
$SNIPPET('pre_anamon')
%end
 
%packages
@base
@compat-libraries
@core
@debugging
@development
@dial-up
@hardware-monitoring
@performance
@server-policy
sgpio
device-mapper-persistent-data
systemtap-client
tree
telnet
nmap
dos2unix
%end
 
%post --nochroot
$SNIPPET('log_ks_post_nochroot')
%end
 
%post
$SNIPPET('log_ks_post')
# Start yum configuration
$yum_config_stanza
# End yum configuration
$SNIPPET('post_install_kernel_options')
$SNIPPET('post_install_network_config')
$SNIPPET('func_register_if_enabled')
$SNIPPET('download_config_files')
$SNIPPET('koan_environment')
$SNIPPET('redhat_register')
$SNIPPET('cobbler_register')
# Enable post-install boot notification
$SNIPPET('post_anamon')
# Start final steps
$SNIPPET('kickstart_done')
# End final steps
%end

ks-centos7-mini.cfg模板：

#platform=x86, AMD64, or Intel EM64T
#version=DEVEL
# System authorization information
auth --enableshadow --passalgo=sha512
# Install OS instead of upgrade
install
# Use Cobbler's network installation
url --url=$tree
# Root password
# Use graphical install
text
# ignore other disk
ignoredisk --only-use=sda
# Keyboard layouts
keyboard --vckeymap=us --xlayouts='us'
# System language
lang en_US.UTF-8 --addsupport=zh_CN.UTF-8
# SELinux configuration
selinux --disabled
# Firewall configuration
firewall --disabled
# Do not configure the X Window System
skipx
# Reboot after installation
reboot
# Network information
network--bootproto=dhcp --device=eth0 --onboot=on--ipv6=auto --activate
# Root password
rootpw --plaintext hejianlai
# Add User
# System services
services --disabled="chronyd"
# System timezone
timezone Asia/Shanghai --nontp
# System bootloader configuration
bootloader --append=" crashkernel=auto" --location=mbr
# Clear the Master Boot Record
zerombr
# Partition clearing information
clearpart --all
# Disk partitioning information
part /boot --fstype="xfs" --ondisk=sda --size=1024
part swap --fstype="swap" --ondisk=sda --size=4096
part / --fstype="xfs" --ondisk=sda --grow --size=1
# Agree EULA
eula --agreed

%post
# config local yum

%end

%packages
@^minimal
@core
kexec-tools

%end

%addon com_redhat_kdump --enable --reserve-mb='auto'

%end

%anaconda
pwpolicy root --minlen=6 --minquality=50 --notstrict --nochanges --notempty
pwpolicy user --minlen=6 --minquality=50 --notstrict --nochanges --notempty
pwpolicy luks --minlen=6 --minquality=50 --notstrict --nochanges --notempty
%end

刪掉預設例子，來重新新增新的kickstart檔案對應關係：

cobbler profile remove --name="CentOS6.9-x86_64" 
cobbler profile remove --name="CentOS7.4-x86_64" 
cobbler profile add --name=CentOS6.9-Mini-x86_64 --kickstart=/var/lib/cobbler/kickstarts/ks-centos6-mini.cfg --distro=CentOS6.9-x86_64 
cobbler profile add --name=CentOS7.4-Mini-x86_64 --kickstart=/var/lib/cobbler/kickstarts/ks-centos7-mini.cfg --distro=CentOS7.4-x86_64

檢視 pxelinux.cfg/default 檔案就能看到選單選項也跟著變。

cat /var/lib/tftpboot/pxelinux.cfg/default

重新同步資料：

cobbler sync

新建虛擬機器：

安裝完成後：