Add SWAP partition on CentOS 6/7
任务:新增一个1GB的SWAP分区,并开机自动挂载
1、在/var目录下新增SWAPFILE交换区文件
dd if=/dev/zero of=/var/SWAPFILE bs=1k count=1024000
2、生成SWAP分区
mkswap /var/SWAPFILE
3、激活SWAP分区
swapon /var/SWAPFILE
4、开机自动挂载SWAP分区,编辑/etc/fstab,末行添加:
/var/SWAPFILE swap swap defaults 0 0
5、检查SWAP分区状态
swapon -s
6、停止SWAP分区
swapoff /var/SWAPFILE
7、删除SWAP文件
rm /var/SWAPFILE
删除/etc/fstab相应的行即可
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