From 85e6118ae30787b9f70e811ab42cd56ab3588697 Mon Sep 17 00:00:00 2001
From: Michael Kroes <michael@kroes.email>
Date: Wed, 16 Mar 2016 12:54:19 +0100
Subject: [PATCH] Add extra comment about blocksizes. Inline if, to check if
 swap was mounted

---
 setup/system.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/setup/system.sh b/setup/system.sh
index 7904b1f6..93086322 100755
--- a/setup/system.sh
+++ b/setup/system.sh
@@ -41,7 +41,8 @@ if
 then
 	echo "Adding swap to the system..."
 
-	# Allocate and activate the swap file
+	# Allocate and activate the swap file. Allocate in 1KB chuncks
+	# doing it in one go, could fail on low memory systems
 	dd if=/dev/zero of=/swapfile bs=1024 count=$[1024*1024] status=none
 	if [ -e /swapfile ]; then
 		chmod 600 /swapfile
@@ -50,7 +51,7 @@ then
 	fi
 
 	# Check if swap is mounted then activate on boot
-        if [ -n "$(swapon -s | grep "\/swapfile")" ]; then
+        if swapon -s | grep -q "\/swapfile"; then
 		echo "/swapfile   none    swap    sw    0   0" >> /etc/fstab
 	else
 		echo "ERROR: Swap allocation failed"