如何直接启动到 USB Live (Linux Mint)？

Question

我一直在尝试让 Grub 自动启动到 Linux Mint Live（使用带有持久性的 rufus），但即使我尝试编辑 isolinux.cfg（在 USB 文件夹中），但它仍然不会直接启动到 Linux Mint Live，除非我自己手动选择。这是我的 ioslinux.cfg

default live
timeout 5

menu background splash.png
menu title Welcome to Linux Mint 20.3 Cinnamon 64-bit

menu color screen   37;40      #80ffffff #00000000 std
MENU COLOR border       30;44   #40ffffff #a0000000 std
MENU COLOR title        1;36;44 #ffffffff #a0000000 std
MENU COLOR sel          7;37;40 #e0ffffff #20ffffff all
MENU COLOR unsel        37;44   #50ffffff #a0000000 std
MENU COLOR help         37;40   #c0ffffff #a0000000 std
MENU COLOR timeout_msg  37;40   #80ffffff #00000000 std
MENU COLOR timeout      1;37;40 #c0ffffff #00000000 std
MENU COLOR msg07        37;40   #90ffffff #a0000000 std
MENU COLOR tabmsg       31;40   #ffDEDEDE #00000000 std
MENU WIDTH 78
MENU MARGIN 15
MENU ROWS 7
MENU VSHIFT 10
MENU TABMSGROW 12
MENU CMDLINEROW 12
MENU HELPMSGROW 16
MENU HELPMSGENDROW 29

label live
  menu label Start Linux Mint
  kernel /casper/vmlinuz
  append  persistent file=/cdrom/preseed/linuxmint.seed boot=casper initrd=/casper/initrd.lz quiet splash --
menu default
label xforcevesa
  menu label Start in compatibility mode
  kernel /casper/vmlinuz
  append  persistent file=/cdrom/preseed/linuxmint.seed boot=casper initrd=/casper/initrd.lz noapic noacpi nosplash irqpoll nomodeset --
label oem
  menu label OEM install (for manufacturers)
  kernel /casper/vmlinuz
  append  persistent file=/cdrom/preseed/linuxmint.seed oem-config/enable=true only-ubiquity boot=casper initrd=/casper/initrd.lz quiet splash --
label check
  menu label Integrity check
  kernel /casper/vmlinuz
  append  boot=casper integrity-check initrd=/casper/initrd.lz quiet splash --
label hdt
  menu label Hardware Detection
  kernel hdt.c32
label local
  menu label Boot from local drive
  COM32 chain.c32
  APPEND hd0
label memtest
  menu label Memory test
  kernel /casper/memtest

谢谢你，我对我对此缺乏了解表示歉意