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May 16, 2018 / Linux

Linux VPS添加SWAP(交换分区)

Linux VPS添加SWAP(交换分区)

1.进入目录

cd /var/

2.获取要增加的SWAP文件块(这里以1GB为例)

dd if=/dev/zero of=swapfile bs=1024 count=1038336

2G

dd if=/dev/zero of=swapfile bs=2048 count=2097152

3.创建SWAP文件

/sbin/mkswap swapfile

4.激活SWAP文件

/sbin/swapon swapfile

5.查看SWAP信息是否正确

/sbin/swapon –s

6.添加到fstab文件中让系统引导时自动启动

echo "/var/swapfile swap swap defaults 0 0" >>/etc/fstab

上面这步也可以修改/etc/fstab,末尾加入/var/swapfile swap swap defaults 0 0

7.查看是否挂载成功

free -m

一次性安装代码

cd /var/
dd if=/dev/zero of=swapfile bs=1024 count=1038336
/sbin/mkswap swapfile
/sbin/swapon swapfile
echo "/var/swapfile swap swap defaults 0 0" >>/etc/fstab
 

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