修复树莓派 4B WiFi 驱动

遥望nas

树莓派安装飞牛fnos教程：
一、 1.工具准备：sd卡一张（tf卡，容量16G以上，我是用的64G），U盘一个(系统盘)，USB移动硬盘一个（用作存储）

2.下载飞牛UEFI固件
官方下载：
fnos_Mainland-PE_arm_1.1.19_armsr_624.iso
迅雷下载：
thunder://QUFodHRwOi8vdGh1bmRlci5saXZldXBkYXRlLmZubmFzLmNvbTo4MDgwL2FybS9mbm9zX01haW5sYW5kLVBFX2FybV8xLjAuMF8xNzguaXNvWlo=
树莓派UEFI引导
https://github.com/pftf/RPi4/releases
二、将sd卡格式化为fat32将RPi4_UEFI_Firmware_v1.51-rc解压后的文件复制到sd卡根目录，用balenaEtcher将飞牛UEFI系统刻录到u盘或移动硬盘，树莓派开机按esc进入bios设置，进入高级设置取消3GB内存限制

选择U盘的飞牛系统

然后成功引导飞牛进入安装，选择sd安装，直到安装结束
三、修复引导
安装结束后，拔掉u盘，用DiskGenius打开sk的esp分区（特征是该分区存在efi目录），将之前的RPi4_UEFI_Firmware文件重新复制到该分区的根目录
将sd卡插回到树莓派开机按esc键，重新关闭3GB内存限制，然后进入引导选项，选择uefi文件为boot目录下的efi文件即可，然后进入飞牛的首次设置页面

立刻修复树莓派 4B WiFi 驱动（直接复制运行）

1. 创建固件目录

mkdir -p /lib/firmware/brcm
cd /lib/firmware/brcm

2. 直接下载缺失的固件（fnOS 专用）

wget -O brcmfmac43455-sdio.bin https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm/brcmfmac43455-sdio.bin
wget -O brcmfmac43455-sdio.clm_blob https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm/brcmfmac43455-sdio.clm_blob
wget -O brcmfmac43455-sdio.txt https://raw.githubusercontent.com/RPi-Distro/firmware-nonfree/master/brcm/brcmfmac43455-sdio.txt

3. 复制一个系统要的名字（解决 error -2）

cp brcmfmac43455-sdio.txt "brcmfmac43455-sdio.Raspberry Pi Foundation-Raspberry Pi 4 Model B.txt"

4.重启

reboot

5.重启后验证（修复成功）

ip link

wlan0 出现 = WiFi 修复完成

田鑫

稳定嘛，有人试过嘛

田鑫

刚刚试了一下。成功跑起来了，但是智能通过efi文件启动，每次重启或者断 电需要手动在bios走文件启动，这个有办法解决嘛

墨落九天

豆包的回答也装上了

墨落九天

树莓派5好像还不能用飞牛

魏公村的猎户

内核报错，这是怎么回事

.738836] brcmfmac: brcmf_set_channel: set chanspec 0xd099 fail, reason -52
[ 66.746265] brcmfmac: brcmf_set_channel: set chanspec 0xd09d fail, reason -52
[ 66.753674] brcmfmac: brcmf_set_channel: set chanspec 0xd0a1 fail, reason -52
[ 84.875901] brcmfmac: brcmf_set_channel: set chanspec 0x100e fail, reason -52
[ 84.876224] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail, reason -52
[ 84.979906] brcmfmac: brcmf_set_channel: set chanspec 0xd026 fail, reason -52
[ 85.079840] brcmfmac: brcmf_set_channel: set chanspec 0xd02a fail, reason -52
[ 85.179893] brcmfmac: brcmf_set_channel: set chanspec 0xd02e fail, reason -52
[ 86.752000] brcmfmac: brcmf_set_channel: set chanspec 0xd090 fail, reason -52
[ 86.759484] brcmfmac: brcmf_set_channel: set chanspec 0xd095 fail, reason -52
[ 86.767000] brcmfmac: brcmf_set_channel: set chanspec 0xd099 fail, reason -52
[ 86.774660] brcmfmac: brcmf_set_channel: set chanspec 0xd09d fail, reason -52
[ 86.775051] brcmfmac: brcmf_set_channel: set chanspec 0xd0a1 fail, reason -52
[ 113.871026] brcmfmac: brcmf_set_channel: set chanspec 0x100e fail, reason -52
[ 113.878423] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail, reason -52
[ 113.986997] brcmfmac: brcmf_set_channel: set chanspec 0xd026 fail, reason -52
[ 114.090955] brcmfmac: brcmf_set_channel: set chanspec 0xd02a fail, reason -52
[ 114.195006] brcmfmac: brcmf_set_channel: set chanspec 0xd02e fail, reason -52
[ 115.739128] brcmfmac: brcmf_set_channel: set chanspec 0xd090 fail, reason -52
[ 115.746547] brcmfmac: brcmf_set_channel: set chanspec 0xd095 fail, reason -52
[ 115.753953] brcmfmac: brcmf_set_channel: set chanspec 0xd099 fail, reason -52
[ 115.761350] brcmfmac: brcmf_set_channel: set chanspec 0xd09d fail, reason -52
[ 115.768740] brcmfmac: brcmf_set_channel: set chanspec 0xd0a1 fail, reason -52
[ 156.868416] brcmfmac: brcmf_set_channel: set chanspec 0x100e fail, reason -52
[ 156.868770] brcmfmac: brcmf_set_channel: set chanspec 0xd022 fail, reason -52
[ 156.968396] brcmfmac: brcmf_set_channel: set chanspec 0xd026 fail, reason -52
[ 157.068367] brcmfmac: brcmf_set_channel: set chanspec 0xd02a fail, reason -52
[ 157.168372] brcmfmac: brcmf_set_channel: set chanspec 0xd02e fail, reason -52
[ 158.732426] brcmfmac: brcmf_set_channel: set chanspec 0xd090 fail, reason -52
[ 158.739836] brcmfmac: brcmf_set_channel: set chanspec 0xd095 fail, reason -52
[ 158.747213] brcmfmac: brcmf_set_channel: set chanspec 0xd099 fail, reason -52
[ 158.754620] brcmfmac: brcmf_set_channel: set chanspec 0xd09d fail, reason -52
[ 158.762018] brcmfmac: brcmf_set_channel: set chanspec 0xd0a1 fail, reason -52