chromebook u盘启动，启动windows，启动ubuntu，启动linux
chromebook boot from usb or sdcard, start windows, start ubuntu, start linux

前言

部分chromebook 的bios默认是关闭u盘启动的。由于设备差异较大，关于chromebook u盘启动我这里给一个总结
不管怎样 开发者模式 一定首先开启，可以参考我之前几篇文章

第一种情况:无锁

如果主板本身没有锁
那么就可以使用下面的命令额可以开启

sudo crossystem dev_boot_usb=1 dev_boot_legacy=1

重启时在警告界面 按下ctrl +l
如果失败了那就说明 固件禁止u盘启动

第二种情况:主板锁了，软锁

如果主板锁了那么就必须通过刷bios来强行开启
参考上一遍文章刷bios

第三种情况:主板锁了，硬锁(大多数都是这个)

说明主板保护非常严格，先拆解电脑去主板保护（螺丝）
然后 shell里运行下面这个命令

flashrom --wp-disable

再参考上一边文章刷bios

EN:

Foreword

Part of the chromebook bios is turned off by default u disk. Due to the large differences in equipment, I started here on the chromebook u disk to give a summary
Anyway Developer Mode * must first open, you can refer to my previous articles

The first case: no lock

If the motherboard itself is not locked
Then you can use the following command can be opened

     sudo crossystem dev_boot_usb = 1 dev_boot_legacy = 1

Restart the ctrl + l in the warning screen
If it fails then the firmware banned u disk boot

The second case: the motherboard lock, soft lock

If the motherboard is locked, then you must force open by brush bios
Refer to the article brush bios again

The third case: the motherboard lock, hard lock (most of them are this)

Description motherboard protection is very strict, first disassemble the computer to the motherboard protection (screw)
Then run the following command in the shell

     flashrom --wp-disable

Refer to the previous article brush bios