注册Ubuntu系统

本节我们将把一台已有的Ubuntu机器注册到Spacewalk服务器。

创建新密钥

在Spacewalk服务器上，点击系统 -> 激活码 -> 密钥, 创建一个新的密钥，结果如下所示:

在"子频道"一栏里，选择上三个子频道:

节点机准备

新增一台已经安装好的Ubuntu机器到SpacewalkNetwork网络。
注意更改其DNS地址为Spacewalk服务器，IP地址可以由DHCP获得或者静态设置。

可以参考下列配置，我们增加了一台主机名为UbuntuNode, IP地址为10.17.20.202的机器:

adminubuntu@UbuntuNode:~$ cat /etc/hosts
127.0.0.1       localhost
127.0.1.1       UbuntuNode
10.17.20.201    UbuntuNode

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
adminubuntu@UbuntuNode:~$ cat /etc/hostname
UbuntuNode
adminubuntu@UbuntuNode:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 10.17.20.202
netmask 255.255.255.0
gateway 10.17.20.1
dns-nameservers 10.17.20.2

安装包

Ubuntu系统上需要安装相应的客户端包才可以使用Spacewalk服务器提供的服务。

# apt-get install -y apt-transport-spacewalk rhnsd

修正一个python XMLRPCLib的Bug:

# vim /usr/lib/python2.7/xmlrpclib.py
def dump_nil (self, value, write):
- if not self.allow_none:
- raise TypeError, "cannot marshal None unless allow_none is enabled"
+# if not self.allow_none:
+# raise TypeError, "cannot marshal None unless allow_none is enabled"
write("<value><nil/></value>")

现在开始，把节点机注册到Spacewalk服务器上:

# apt-get install -y python-libxml2
# mkdir /var/lock/subsys
# rhnreg_ks --activationkey=1-ubuntu1404 --serverUrl=http://spacewalkrootnode/XMLRPC

登记仓库到本机：

# cat /etc/apt/sources.list.d/spacewalk.list
deb spacewalk://spacewalkrootnode channels: main trusty-backports trusty-updates trusty-security
# mv /etc/apt/sources.list /etc/apt/sources.list.bak
# apt-get update

登记完毕后，本机就可以使用Spacewalk服务器提供的仓库来安装、同步软件了。可以通过以下命令检查本机注册到的频道:

# rhn-channel --list
trusty-backports
trusty-security
trusty-updates
ubuntu1404

已知问题

用Spacewalk频道安装包时，会出现以下错误:

# apt-get install vim
Reading package lists... Done
Building dependency tree       
Reading state information... Done
vim is already the newest version.
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 dh-python : Depends: python3:any (>= 3.3.2-2~) but it is not installable
 lsb-release : Depends: python3:any (>= 3.3.2-2~) but it is not installable
 python-apt : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-dbus : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-gi : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-gobject-2 : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-libxml2 : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-newt : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
 python-openssl : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a
solution).

这是因为Debian 引入的Multi-Arch:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=723586

而Spacewalk在创建软件库用的metadata时候，忽略了Multi-Arch这个选项。

我们可以手动的更改Packages和Packages.gz文件，把这个选项添加上去:

# vim /var/cache/rhn/repodata/ubuntu1404/Packages
Package: python
Version: 2.7.5-5ubuntu3
+ Multi-Arch: allowed
Architecture: amd64

--------------

Package: python3
Version: 3.4.0-0ubuntu2
+ Multi-Arch: allowed
Architecture: amd64

然后手动创建Packages.gz:

# mv Packages.gz Packages.gz.back
# gzip -c Packages>Packages.gz

这时再执行apt-get安装包就不会出现上面的冲突了。

注册Ubuntu系统