树莓派sd卡上面两个分区，只能挂载sd0，挂载sd1就失败

发布于 2020-06-14 15:20:51 浏览：2025 订阅该版

系统启动正常，也能识别到两个sd，sd0和sd1如下所示：

```
\ | /
- RT -     Thread Operating System
 / | \     4.0.3 build May 31 2020
 2006 - 2020 Copyright by rt-thread team
[32m[I/I2C] I2C bus [i2c0] registered[0m
[32m[I/I2C] I2C bus [i2c1] registered[0m

[15:06:39.181]收←◆[32m[I/SDIO] SD card capacity 31166976 KB.[0m
file system initialization failed!
boot cpu:3
cpu 3 startup.
found part[0], begin: 4194304, size: 256.0MB
found part[1], begin: 272629760, size: 6.580GB
start OK: CPU 3 
boot cpu:2
cpu = 0x00000002
cpu 2 startup.
start OK: CPU 2 
boot cpu:1
cpu = 0x00000001
cpu 1 startup.
start OK: CPU 1 
```

也能发现两个设备，如下所示：

```
[15:06:48.373]收←◆list_device
device           type         ref count
-------- -------------------- ----------
sd1      Block Device         0       
sd0      Block Device         1       
hdmi     Graphic Device       0       
rtc      RTC                  0       
spi0.1   SPI Device           0       
spi0.0   SPI Device           0       
spi0     SPI Bus              0       
wdg      Miscellaneous Device 0       
i2c1     I2C Bus              0       
i2c0     I2C Bus              0       
gpio     Miscellaneous Device 0       
timer3   Timer Device         0       
timer1   Timer Device         0       
uart1    Character Device     2 
```

但是代码里，dfs_mount只能挂载sd0，sd0改成sd1就挂载失败

`dfs_mount("sd0", "/", "elm", 0, 0)`     可以
`dfs_mount("sd1", "/", "elm", 0, 0)`     失败