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Ubuntu安装Oracle-XE-Client

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Jun 07, 2016 pm 04:54 PM

oracle

第一次在Ubuntu下写blog中的东东，好久没有更新了，今天来点儿吧安装oracle-xe-client第一个我们要考虑的就是交换分区是否足够大

第一次在Ubuntu下写blog中的东东，好久没有更新了，今天来点儿吧

安装Oracle-xe-client第一个我们要考虑的就是交换分区是否足够大，
This system does not meet the minimum requirements for swap space. Based on the amount of physical memory available on the system, Oracle Client 10g Express Edition requires 1024 MB of swap space. This system has 951 MB of swap space. Configure more swap space on the system and retry the installation.
Oracle-xe-client 要求1024M的swap空间，如何查看Ubuntu中swap空间具体有多大呢？
首先使用命令free -m 查看系统内swap为多大
free -m

total used free shared buffers cached
Mem: 1002 964 38 0 21 410
-/+ buffers/cache: 532 470
Swap: 951 32 929
我们知道，swap为951M，不符合Oracle-xe-client安装条件 1024M

创建一个swap文件夹
sudo mkdir swap
cd swap
sudo dd if=/dev/zero of=swapfile bs=1024 count=100000
出现下列提示，上面命令中的 count 即代表swap文件大小。

记录了 100000+0 的读入
记录了 100000+0 的写出
102400000 字节 (102 MB) 已复制，0.74704 秒，137 MB/秒
把生成的文件转换成swap文件
sudo mkswap swapfile
提示如下：
Setting up swapspace version 1, size = 102395 kB
no label, UUID=09fde987-5567-498a-a60b-477e302a988b

现在我们来激活这个swap文件
sudo swapon swapfile
再次查看 free -m 的结果。

total used free shared buffers cached
Mem: 1002 967 34 0 22 410
-/+ buffers/cache: 534 467
Swap: 1053 32 1021

扩展swap空间成功。
如果需要卸载这个 swap 文件，可以进入建立的 swap 文件目录。执行下列命令。
sudo swapoff swapfile
如果需要一直保持这个 swap ，可以把它写入 /etc/fstab 文件。
swapfilepath swap swap defaults 0 0

现在我们来安装oracle-xe-client

Oracle 为 Ubuntu 用户设立了专门的 apt 源服务器，，只需要在 /etc/apt/source.list 中添加一行：
deb unstable main non-free

这时不要急于更新，还要将该源服务器的公钥添加到本地密钥库中，先下载公钥：
sudo wget

下载完成后，添加到密钥库中
sudo apt-key add RPM-GPG-KEY-oracle
现在我们可以执行更新的命令了
sudo apt-get update
同步软件包索引文件，同步完成后我们可以查看一下，更新了什么文件
sudo apt-cache seaarch oracle

我们在执行命令的最下面看到三个相关文件
oracle-xe - Oracle Database 10g Express Western European Edition
oracle-xe-client - Oracle Client 10g Express Edition
oracle-xe-universal - Oracle Database 10g Express Universal Edition

开发只需要安装oracle客户端，安装 oracle-xe-client这个软件包
执行
sudo apt-get install oracle-xe-client
安装成功后，在“应用程序”的上面出现一个“Oracle client 10g Express Edition”

安装成功！～

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