diff --git a/setup-alpine.sh b/setup-alpine.sh
index 70b5907..93b5f1b 100644
--- a/setup-alpine.sh
+++ b/setup-alpine.sh
@@ -2,12 +2,12 @@
 
 wget "https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/x86_64/alpine-virt-3.21.3-x86_64.iso" alpine.iso
 
-if [ -f /dev/sda ]; then
+if [ -f /dev/sda && -f alpine.iso ]; then
   dd if=alpine.iso of=/dev/sda
-  reboot
-elif
+elif [ -f /dev/vda -f alpine.iso ]; then
   dd if=alpine.iso of=/dev/vda
-  reboot
 else
   exit 1
 fi
+
+reboot
\ No newline at end of file