unbuntu添加交换分区

环境:

OS:16.04

 

安装ubuntu的时候采用的是lvm方式自动安装的，划分的swap分区太小了，无法满足安装oracle的要求,下面单独创建一个交换分区

fallocate -l 4G /swapfile
ls -lh /swapfile
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile
swapon --show
echo '/swapfile none swap sw 0 0' | tee -a /etc/fstab

 

注释掉之前分配太小的

root@11g:/lib64# more /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/ubuntu--vg-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda1 during installation
UUID=e9dd596c-d06f-450a-b4e9-a00d4088fbea /boot           ext2    defaults        0       2
##/dev/mapper/ubuntu--vg-swap_1 none            swap    sw              0       0
/swapfile none swap sw 0 0