mirror of
https://github.com/webinstall/webi-installers.git
synced 2026-08-23 22:16:48 +00:00
34 lines
698 B
Bash
34 lines
698 B
Bash
#!/bin/bash
|
|
|
|
{
|
|
set -e
|
|
set -u
|
|
|
|
default_size=2G
|
|
my_size=${1:-$default_size}
|
|
|
|
if [ "0" != "$EUID" ] && [ "0" != "$UID" ]; then
|
|
echo Usage:
|
|
echo ' sudo env PATH="$PATH" vps-addswap' $my_size
|
|
exit 1
|
|
fi
|
|
|
|
if [ -f "/var/swapfile" ]; then
|
|
swapoff /var/swapfile
|
|
fi
|
|
|
|
# Allocate a swapfile
|
|
fallocate -l "$my_size" /var/swapfile
|
|
|
|
# Only allow root to read it
|
|
# (this is not sufficient security for sensitive data)
|
|
chmod 0600 /var/swapfile
|
|
|
|
# Activate the swap
|
|
mkswap /var/swapfile
|
|
swapon /var/swapfile
|
|
|
|
# Cause swap to be activated on boot
|
|
echo '/var/swapfile none swap sw 0 0' | tee -a /etc/fstab
|
|
}
|