cfe中的分区都是什么作用？

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CFE中的分区都是什么作用？
刷机是刷进nflash0还是刷进nflash1？开机，BOOTP，NVRAM，TRX，操作系统，TRX2，OS2都是做什么的？谢谢谢谢大神们

1. CFE> nvram erase
   
2. *** command status = 0
   
3. CFE>
   
4. CFE> show devices
   
5. Device Name Description
   
6. ------------------- ---------------------------------------------------------
   
7. uart0 NS16550 UART at 0x18000300
   
8. uart1 NS16550 UART at 0x18000400
   
9. nflash0 Unknown type 146 NAND flash size 131072KB
   
10. nflash0.boot Unknown type 146 NAND flash offset 00000000 size 512KB
    
11. nflash0.bootp Unknown type 146 NAND flash offset 00080000 size 128KB
    
12. nflash0.nvram Unknown type 146 NAND flash offset 000A0000 size 1408KB
    
13. nflash0.trx Unknown type 146 NAND flash offset 00200000 size 1KB
    
14. nflash0.os Unknown type 146 NAND flash offset 0020001C size 31744KB
    
15. nflash0.trx2 Unknown type 146 NAND flash offset 02100000 size 1KB
    
16. nflash0.os2 Unknown type 146 NAND flash offset 0210001C size 31744KB
    
17. nflash1.boot Unknown type 146 NAND flash offset 00000000 size 512KB
    
18. nflash1.bootp Unknown type 146 NAND flash offset 00080000 size 128KB
    
19. nflash1.nvram Unknown type 146 NAND flash offset 000A0000 size 1408KB
    
20. nflash1.trx Unknown type 146 NAND flash offset 00200000 size 31744KB
    
21. nflash1.trx2 Unknown type 146 NAND flash offset 02100000 size 31744KB
    
22. nflash1.brcmnand Unknown type 146 NAND flash offset 04000000 size 64512KB
    
23. nflash1.bbt Unknown type 146 NAND flash offset 07F00000 size 1024KB
    
24. eth0 Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller
    
25. *** command status = 0

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因为有你而努力

求大神指教  CFE中的分区都是什么作用？