add debug info

IMG/cpio/ventoy/hook/ventoy-hook-lib.sh

@@ -57,14 +57,14 @@ vterr() {
 
 
 is_ventoy_hook_finished() {
-	[ -e $VTOY_PATH/hook_finish ]
+    [ -e $VTOY_PATH/hook_finish ]
 }
 
 set_ventoy_hook_finish() {
-	echo 'Y' > $VTOY_PATH/hook_finish
+    echo 'Y' > $VTOY_PATH/hook_finish
 }
 
-get_ventoy_disk_name() {	
+get_ventoy_disk_name() {    
     line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
     if [ $? -eq 0 ]; then
         echo ${line%%#*}
@@ -74,7 +74,7 @@ get_ventoy_disk_name() {
 }
 
 get_ventoy_iso_name() {
-	line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
+    line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
     if [ $? -eq 0 ]; then
         echo ${line##*#}
     else    
@@ -83,8 +83,9 @@ get_ventoy_iso_name() {
 }
 
 wait_for_usb_disk_ready() {
-	while [ -n "Y" ]; do
-		usb_disk=$(get_ventoy_disk_name)
+    vtloop=0
+    while [ -n "Y" ]; do
+        usb_disk=$(get_ventoy_disk_name)
         vtlog "wait_for_usb_disk_ready $usb_disk ..."
         
         if echo $usb_disk | $EGREP -q "nvme|mmc|nbd"; then
@@ -95,13 +96,20 @@ wait_for_usb_disk_ready() {
         
         if [ -e "${vtpart2}" ]; then
             vtlog "wait_for_usb_disk_ready $usb_disk finish"
-			break
-		else
-			$SLEEP 0.3
-		fi
-	done
+            break
+        else
+            let vtloop=vtloop+1
+            if [ $vtloop -gt 2 ]; then
+                if [ "$VTLOG" != "$VTOY_PATH/log" ]; then
+                    $VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param -v > $VTLOG
+                fi
+            fi
+            $SLEEP 0.3
+        fi
+    done
 }
 
+
 check_usb_disk_ready() {
     if echo $1 | $EGREP -q "nvme|mmc|nbd"; then
         vtpart2=${1}p2