fix: Do not match multiple files (#1211)

src/disk.sh

@@ -567,6 +567,7 @@ addDisk () {
     USED=$(du -sB 1 "$DISK_FILE" | cut -f1)
     FREE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
     LEFT=$(( CUR_SIZE - USED - FREE ))
+    (( LEFT < 0 )) && LEFT=0
 
     if (( LEFT > 0 )); then
 

src/install.sh

@@ -205,11 +205,12 @@ fi
 MSG="Preparing system partition..."
 info "Install: $MSG" && html "$MSG"
 
-BOOT=$(find "$TMP" -name "*.bin.zip")
-[ ! -s "$BOOT" ] && error "The PAT file contains no boot image." && exit 67
+BOOT=$(find "$TMP" -name "*.bin.zip" -print -quit)
+[ -z "$BOOT" ] && error "The PAT file contains no boot image." && exit 67
+[ ! -s "$BOOT" ] && error "The PAT boot image archive is empty." && exit 67
 
-BOOT=$(echo "$BOOT" | head -c -5)
-unzip -q -o "$BOOT".zip -d "$TMP"
+unzip -q -o "$BOOT" -d "$TMP"
+BOOT="${BOOT%.zip}"
 
 SYSTEM="$STORAGE/$BASE.system.img"
 rm -f "$SYSTEM"

src/serial.sh

@@ -85,7 +85,7 @@ configureSerialPorts() {
         -chardev socket,id=charchannel0,host=127.0.0.1,port=$CHR_PORT,reconnect=10 \
         -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=vchannel"
 
-        return 0
+  return 0
 }
 
 validateHostMac