如何使用 SD 卡在 sama5d27-som1-ek 套件中加载图像

Question

我正在按照标准流程使用 SDcard 启动 sama5d27-som1-ek 套件，但出现以下错误

我不明白为什么它显示无法打开根设备。我在这个过程中使用了 8GB sd

VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2): error -30                         
Please append a correct "root=" boot option; here are the available partitions:                     
0100            8192 ram0                                                                           
 (driver?)                                                                                          
0101            8192 ram1                                                                           
 (driver?)                                                                                          
0102            8192 ram2                                                                           
 (driver?)                                                                                          
0103            8192 ram3                                                                           
 (driver?)                                                                                          
1f00              64 mtdblock0                                                                      
 (driver?)                                                                                          
1f01             640 mtdblock1                                                                      
 (driver?)                                                                                          
1f02              64 mtdblock2                                                                      
 (driver?)                                                                                          
1f03             128 mtdblock3                                                                      
 (driver?)                                                                                          
1f04            4096 mtdblock4                                                                      
 (driver?)                                                                                          
b300         7864320 mmcblk0                                                                        
 driver: mmcblk                                                                                     
  b301           65536 mmcblk0p1 da6e5492-01                                                        

  b302          914432 mmcblk0p2 da6e5492-02                                                        

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)                    
CPU: 0 PID: 1 Comm: swapper Not tainted 4.19.78-linux4sam-6.2 #1                                    
Hardware name: Atmel SAMA5                                                                          
Function entered at [<c010dcd8>] from [<c010ae5c>]                                                  
Function entered at [<c010ae5c>] from [<c0117f48>]                                                  
Function entered at [<c0117f48>] from [<c0a01270>]                                                  
Function entered at [<c0a01270>] from [<c0a01590>]                                                  
Function entered at [<c0a01590>] from [<c0a01730>]                                                  
Function entered at [<c0a01730>] from [<c0a00e1c>]                                                  
Function entered at [<c0a00e1c>] from [<c0729e00>]                                                  
Function entered at [<c0729e00>] from [<c01010e8>]                                                  
Exception stack(0xc642dfb0 to 0xc642dff8)                                                           
dfa0:                                     00000000 00000000 00000000 00000000                       
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000                       
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000                                         
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2) ]---      
random: fast init done                                                                              
random: crng init done  

请帮助了解错误。因为我遵循标准流程。

Answer 1

内核无法挂载rootfs。 （找不到初始化） 你能显示内核命令行吗？ 你使用什么文件系统？ 看起来你有 2 个分区。