Buildroot-系统无法启动-/dev/ttyS0没有这样的文件 [英] Buildroot - System doesn't boot - /dev/ttyS0 no such file

问题描述

我正在使用buildroot为Raspberry Pi创建文件系统.我已经解压了SD卡Root分区中的文件系统映像，但是无法启动操作系统.我收到以下错误:

I m using buildroot to create a filesystem for a Raspberry Pi. I have uncompressed the filesystem image in the Root partition of my SD card but I can't boot the operative system. I get the following errors:

无法打开/dev/null没有这样的文件或目录

Can't open /dev/null no such file or directory

无法打开/dev/ttyS0没有这样的文件或目录

Can't open /dev/ttyS0 no such file or directory

我应该启用或修改配置工具的哪一行来引导系统?

Which line of the configuration tool should I enable or modify in order to boot the system?

编辑

我遵循了Thomas Petazzoni提供的步骤，并使用了buildroot的预配置版本.现在该系统可以运行了，但是我仍然不知道内核配置工具中的哪个选项导致了问题.

I've followed the steps provided by Thomas Petazzoni and used a preconfigured version of buildroot. Now the system works but I still don't know which option in the kernel configuration tool was causing the problem.

推荐答案

您的内核中未启用devtmpfs.

You don't have devtmpfs enabled in your kernel.

此外，您应该从Buildroot中使用raspberrypi_defconfig开始，而不要自己动手.做:

Also, you should start by using the raspberrypi_defconfig in Buildroot instead of rolling your own. Do:

make distclean
make raspberrypi_defconfig
make

然后按照board/raspberrypi/readme.txt中的说明来了解如何使用生成的图像.

And then follow the instructions in board/raspberrypi/readme.txt to know how to use the resulting images.

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