说明：  1.boot加了对内核的校验 2.boot跳过了出错的动画帧,开机动画出错时,不再黑屏 3.内核加了检验 4.之前发的内核没做校验 5.升级失败时,蓝屏或红屏 6.现在的boot会判断内核是1g的还是2g的,查不到这个标记,就会蓝屏 7.烧写工具：更改烧写2G Boot时PC电脑蓝屏或死机的现象。 8. hive空间增加到500M
(1.boot plus a checksum of the kernel 2.boot skip animation frames of the error, boot animation error, no longer black. Kernel plus test 4 previously issued by the kernel did not do checksum upgrade failure blue screen or red screen of the boot will determine kernel 1g or 2g, not find the tag, it will blue screen. programming tools: change the programming 2G the Boot PC computer blue screen or freezes up. The hive space increased to 500M)