minor fixes

[webi-installers/.git] / vps-addswap / install.sh

diff --git a/vps-addswap/install.sh b/vps-addswap/install.sh
index f1f559f859ba2e40b96c4062fb363406f62256ff..e3e3702d254d2621cfe8e96b45373f76831c6867 100644 (file)
--- a/vps-addswap/install.sh
+++ b/vps-addswap/install.sh
@@ -7,6 +7,16 @@
     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
 
@@ -20,5 +30,4 @@
 
     # Cause swap to be activated on boot
     echo '/var/swapfile none swap sw 0 0' | tee -a /etc/fstab
-
 }