- vtwarn "$DISK does not contain Ventoy or data corrupted"
- echo ""
- vtwarn "Please use -i option if you want to install ventoy to $DISK"
- echo ""
- exit 1
+ if is_disk_contains_ventoy $DISK; then
+ oldver="Unknown"
+ else
+ vtwarn "$DISK does not contain Ventoy or data corrupted"
+ echo ""
+ vtwarn "Please use -i option if you want to install ventoy to $DISK"
+ echo ""
+ exit 1
+ fi