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s3c6410 arm移植实验一：nfs 无法挂载的问题。

分类： 嵌入式

2013-07-15 16:59:56

最近在学习嵌入式系统的移植，用的飞凌的6410的开发板。
最先依照飞凌的资料完成了一遍，可以通过nfs挂载系统。

接着自己着手移植3.6.6的系统，以及busybox，但是在nfs挂载的时候出现了问题。
具体情况如下：
服务端系统是Fedora18，关闭了firewalld，启动rpcbind和nfs-server（飞凌的2.6.28kernel可以挂载飞凌的系统文件）。

NFS-server：

点击(此处)折叠或打开

  1. [ZhShiH@localhost ~]$ cat /etc/exports
  2. /zhangsh *(rw,sync,no_root_squash)
  3. [ZhShiH@localhost ~]$

Uboot参数：

点击(此处)折叠或打开

  1. SMDK6410 # printenv
  2. bootdelay=3
  3. baudrate=115200
  4. ethaddr=00:40:5c:26:0a:5b
  5. bootm=
  6. filesize=207bb0
  7. fileaddr=C0008000
  8. gatewayip=192.168.1.1
  9. netmask=255.255.255.0
  10. serverip=192.168.1.108
  11. bootcmd=nand read 0xc0008000 0x100000 0x300000;bootm 0xc0008000
  12. ipaddr=192.168.1.109
  13. bootargs=root=/dev/nfs nfsroot=192.168.1.108:/zhangsh/rootfs,nolock ip=192.168.1.109:192.168.1.108:192.168.1.1:255.255.255.0::eth0:off console=ttySAC0,115200 init=/linuxrc
  14. stdin=serial
  15. stdout=serial
  16. stderr=serial

  18. Environment size: 460/16380 bytes
  19. SMDK6410 #

内核配置：

点击(此处)折叠或打开

  1. [ZhShiH@localhost linux-3.6.6]$ cat .config| grep PNP
  2. CONFIG_IP_PNP=y
  3. CONFIG_IP_PNP_DHCP=y
  4. CONFIG_IP_PNP_BOOTP=y
  5. CONFIG_IP_PNP_RARP=y

  7. [ZhShiH@localhost linux-3.6.6]$ cat .config| grep NFS
  8. CONFIG_NFS_FS=y
  9. CONFIG_NFS_V2=y
  10. CONFIG_NFS_V3=y
  11. CONFIG_NFS_V3_ACL=y
  12. CONFIG_NFS_V4=y
  13. CONFIG_NFS_SWAP=y
  14. # CONFIG_NFS_V4_1 is not set
  15. CONFIG_ROOT_NFS=y
  16. # CONFIG_NFS_USE_LEGACY_DNS is not set
  17. CONFIG_NFS_USE_KERNEL_DNS=y
  18. # CONFIG_NFSD is not set
  19. CONFIG_NFS_ACL_SUPPORT=y
  20. CONFIG_NFS_COMMON=y
  21. [ZhShiH@localhost linux-3.6.6]$

内核打印：

点击(此处)折叠或打开

  1. U-Boot 1.1.6 (Jul 8 2013 - 15:41:56) for SMDK6410

  3. ****************************************
  4. ** u-boot 1.1.6 **
  5. ** Updated for TE6410 Board **
  6. ** Version 1.0 (10-01-15) **
  7. ** OEM: Forlinx Embedded **
  8. ** Web: **
  9. ****************************************

  11. CPU: S3C6410 @532MHz
  12. Fclk = 532MHz, Hclk = 133MHz, Pclk = 66MHz, Serial = CLKUART (SYNC Mode)
  13. Board: SMDK6410
  14. DRAM: 128 MB
  15. Flash: 0 kB
  16. NAND: 256 MB
  17. In: serial
  18. Out: serial
  19. Err: serial
  20. Hit any key to stop autoboot: 0

  22. NAND read: device 0 offset 0x100000, size 0x300000
  23. 3145728 bytes read: OK
  24. Boot with zImage

  26. Starting kernel ...

  28. Uncompressing Linux... done, booting the kernel.
  29. Booting Linux on physical CPU 0
  30. Linux version 3.6.6 (ZhShiH@localhost.localdomain) (gcc version 4.4.3 (ctng-1.6.1) ) #4 Mon Jul 15 15:09:07 CST 2013
  31. CPU: ARMv6-compatible processor [410fb766] revision 6 (ARMv7), cr=00c5387d
  32. CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
  33. Machine: SMDK6410
  34. Memory policy: ECC disabled, Data cache writeback
  35. CPU S3C6410 (id 0x36410101)
  36. S3C24XX Clocks, Copyright 2004 Simtec Electronics
  37. camera: no parent clock specified
  38. S3C64XX: PLL settings, A=532000000, M=532000000, E=24000000
  39. S3C64XX: HCLK2=266000000, HCLK=133000000, PCLK=66500000
  40. mout_apll: source is fout_apll (1), rate is 532000000
  41. mout_epll: source is epll (1), rate is 24000000
  42. mout_mpll: source is mpll (1), rate is 532000000
  43. usb-bus-host: source is clk_48m (0), rate is 48000000
  44. audio-bus: source is mout_epll (0), rate is 24000000
  45. audio-bus: source is mout_epll (0), rate is 24000000
  46. audio-bus: source is mout_epll (0), rate is 24000000
  47. irda-bus: source is mout_epll (0), rate is 24000000
  48. camera: no parent clock specified
  49. CPU: found DTCM0 8k @ 00000000, not enabled
  50. CPU: moved DTCM0 8k to fffe8000, enabled
  51. CPU: found DTCM1 8k @ 00000000, not enabled
  52. CPU: moved DTCM1 8k to fffea000, enabled
  53. CPU: found ITCM0 8k @ 00000000, not enabled
  54. CPU: moved ITCM0 8k to fffe0000, enabled
  55. CPU: found ITCM1 8k @ 00000000, not enabled
  56. CPU: moved ITCM1 8k to fffe2000, enabled
  57. Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
  58. Kernel command line: root=/dev/nfs nfsroot=192.168.1.108:/zhangsh/rootfs ip=192.168.1.109:192.168.1.108:192.168.1.1:255.255.2c
  59. PID hash table entries: 512 (order: -1, 2048 bytes)
  60. Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
  61. Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
  62. Memory: 128MB = 128MB total
  63. Memory: 125504k/125504k available, 5568k reserved, 0K highmem
  64. Virtual kernel memory layout:
  65. vector : 0xffff0000 - 0xffff1000 ( 4 kB)
  66. DTCM : 0xfffe8000 - 0xfffec000 ( 16 kB)
  67. ITCM : 0xfffe0000 - 0xfffe4000 ( 16 kB)
  68. fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
  69. vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
  70. lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
  71. modules : 0xbf000000 - 0xc0000000 ( 16 MB)
  72. .text : 0xc0008000 - 0xc03b9c18 (3784 kB)
  73. .init : 0xc03ba000 - 0xc03dbcec ( 136 kB)
  74. .data : 0xc03dc000 - 0xc0411100 ( 213 kB)
  75. .bss : 0xc0412024 - 0xc04479ec ( 215 kB)
  76. SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
  77. NR_IRQS:246
  78. VIC @f6000000: id 0x00041192, vendor 0x41
  79. VIC @f6010000: id 0x00041192, vendor 0x41
  80. sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
  81. Console: colour dummy device 80x30
  82. Calibrating delay loop... 353.89 BogoMIPS (lpj=1769472)
  83. pid_max: default: 32768 minimum: 301
  84. Mount-cache hash table entries: 512
  85. CPU: Testing write buffer coherency: ok
  86. Setting up static identity map for 0x502d4698 - 0x502d46f4
  87. NET: Registered protocol family 16
  88. DMA: preallocated 256 KiB pool for atomic coherent allocations
  89. s3c64xx_dma_init: Registering DMA channels
  90. PL080: IRQ 73, at c8846000, channels 0..8
  91. PL080: IRQ 74, at c8848000, channels 8..16
  92. S3C6410: Initialising architecture
  93. bio: create slab at 0
  94. usbcore: registered new interface driver usbfs
  95. usbcore: registered new interface driver hub
  96. usbcore: registered new device driver usb
  97. s3c-i2c s3c2440-i2c.0: slave address 0x10
  98. s3c-i2c s3c2440-i2c.0: bus frequency set to c-i2c s3c2440-i2c.0: i2c-0: S3C I2C adapter
  99. s3c-i2c s3c2440-i2c.1: slave address 0x10
  100. s3c-i2c s3c2440-i2c.1: bus frequency set to 64 KHz
  101. s3c-i2c s3c2440-i2c.1: i2c-1: S3C I2C adapter
  102. NET: Registered protocol family 2
  103. TCP established hash table entries: 4096 (order: 3, 32768 bytes)
  104. TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
  105. TCP: Hash tables configured (established 4096 bind 4096)
  106. TCP: reno registered
  107. UDP hash table entries: 256 (order: 1, 12288 bytes)
  108. UDP-Lite hash table entries: 256 (order: 1, 12288 bytes)
  109. RPC: Registered named UNIX socket transport module.
  110. RPC: Registered udp transport module.
  111. RPC: Registered tcp transport module.
  112. RPC: Registered tcp NFSv4.1 backchannel transport module.
  113. NFS: Registering the id_resolver key type
  114. Key type id_resolver registered
  115. Key type id_legacy registered
  116. ROMFS MTD (C) 2007 Red Hat, Inc.
  117. io scheduler noop registered
  118. io scheduler deadline registered
  119. io scheduler cfq registered (default)
  120. start plist test
  121. end plist test
  122. s3c-fb s3c-fb: window 0: fb
  123. Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
  124. s3c6400-uart.0: ttySAC0 at MMIO 0x7f005000 (irq = 69) is a S3C6400/10
  125. console [ttySAC0] enabled
  126. s3c6400-uart.1: ttySAC1 at MMIO 0x7f005400 (irq = 70) is a S3C6400/10
  127. s3c6400-uart.2: ttySAC2 at MMIO 0x7f005800 (irq = 71) is a S3C6400/10
  128. s3c6400-uart.3: ttySAC3 at MMIO 0x7f005c00 (irq = 72) is a S3C6400/10
  129. brd: module loaded
  130. loop: module loaded
  131. at24 0-0050: 1024 byte 24c08 EEPROM, writable, 1 bytes/write
  132. at24 1-0057: 16384 byte 24c128 EEPROM, writable, 1 bytes/write
  133. S3C24XX NAND Driver, (c) 2004 Simtec Electronics
  134. dm9000 Ethernet Driver, V1.31
  135. ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
  136. mousedev: PS/2 mouse device common for all mice
  137. s3c-rtc s3c64xx-rtc: rtc disabled, re-enabling
  138. s3c-rtc s3c64xx-rtc: rtc core: registered s3c as rtc0
  139. i2c /dev entries driver
  140. sdhci: Secure Digital Host Controller Interface driver
  141. sdhci: Copyright(c) Pierre Ossman
  142. s3c-sdhci s3c-sdhci.0: clock source 0: mmc_busclk.0 (133000000 Hz)
  143. s3c-sdhci s3c-sdhci.0: clock source 2: mmc_busclk.2 (24000000 Hz)
  144. mmc0: SDHCI controller on samsung-hsmmc [s3c-sdhci.0] using ADMA
  145. mmc0: mmc_rescan_try_freq: trying to init card at 400000 Hz
  146. Synopsys Designware Multimedia Card Interface Driver
  147. VUB300 Driver rom wait states = 1C irqpoll timeout = 0400usbcore: registered new interface driver vub300
  148. usbcore: registered new interface driver ushc
  149. usbcore: registered new interface driver usbhid
  150. usbhid: USB HID core driver
  151. TCP: cubic registered
  152. VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
  153. s3c-rtc s3c64xx-rtc: setting system clock to 2000-01-01 01:39:20 UTC (946690760)
  154. mmc0: new SD card at address 8974
  155. mmcblk0: mmc0:8974 SD02G 1.84 GiB
  156. mmcblk0: p1
  157. VFS: Unable to mount root fs via NFS, trying floppy.
  158. VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
  159. Please append a correct "root=" boot option; here are the available partitions:
  160. b300 1931264 mmcblk0 driver: mmcblk
  161. b301 1930240 mmcblk0p1 00000000-0000-0000-0000-000000000000
  162. Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
  163. [] (unwind_backtrace+0x0/0xf4) from [] (panic+0x8c/0x1dc)
  164. [] (panic+0x8c/0x1dc) from [] (mount_block_root+0x174/0x228)
  165. [] (mount_block_root+0x174/0x228) from [] (mount_root+0xd4/0xf8)
  166. [] (mount_root+0xd4/0xf8) from [] (prepare_namespace+0x160/0x1b8)
  167. [] (prepare_namespace+0x160/0x1b8) from [] (kernel_init+0x164/0x1ac)
  168. [] (kernel_init+0x164/0x1ac) from [] (kernel_thread_exit+0x0/0x8)
问题如上，查遍了google、baidu、bing，没遇见过类似的情况，先记下来，接着研究。

另外不知道有没有同学遇到过类似的情况而解决的，望赐教，谢谢！

这个问题今天解决了！
原因是kernel的dm9000网卡驱动未移植。
移植操作可见：http://blog.csdn.net/acanoe/article/details/7516341。
在这里，也转载一下这位同学的操作部分。

s3c6410的dm9000移植。
1. 添加头文件支持：

点击(此处)折叠或打开

  1. #incude <linux/dm9000.h>


2. 添加宏定义和结构体：

点击(此处)折叠或打开

  1. //add by acanoe dm9000
  2.     /* Ethernet */
  3.     #define S3C64XX_PA_DM9000 (0x18000000)
  4.     #define S3C64XX_SZ_DM9000 SZ_1M
  5.     #define S3C64XX_VA_DM9000 S3C_ADDR(0x03b00300)
  6.       
  7.       
  8.     static struct resource dm9000_resources[] = {
  9.         [0] = {
  10.             .start = S3C64XX_PA_DM9000,
  11.             .end = S3C64XX_PA_DM9000 + 3,
  12.             .flags = IORESOURCE_MEM,
  13.         },
  14.         [1] = {
  15.             .start = S3C64XX_PA_DM9000 + 4,
  16.             .end = S3C64XX_PA_DM9000 + S3C64XX_SZ_DM9000 - 1,
  17.             .flags = IORESOURCE_MEM,
  18.         },
  19.         [2] = {
  20.             .start = IRQ_EINT(7),
  21.             .end = IRQ_EINT(7),
  22.             .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
  23.         },
  24.     };
  25.       
  26.       
  27.     static struct dm9000_plat_data dm9000_setup = {
  28.         .flags = DM9000_PLATF_16BITONLY,
  29.         .dev_addr = { 0x08, 0x90, 0x00, 0xa0, 0x90, 0x90 },
  30.     };
  31.       
  32.       
  33.     static struct platform_device s3c_device_dm9000 = {
  34.         .name = "dm9000",
  35.         .id = 0,
  36.         .num_resources = ARRAY_SIZE(dm9000_resources),
  37.         .resource = dm9000_resources,
  38.         .dev = {
  39.             .platform_data = &dm9000_setup,
  40.         }
  41.     };
  42.     //#ifdef CONFIG_DM9000
  43.     //add by acanoe dm9000

3. 修改smdk6410_devices结构体：

点击(此处)折叠或打开

  1. static struct platform_device *smdk6410_devices[] __initdata = {
  2. ...
  3. ...
  4. #ifdef CONFIG_DM9000
  5. &s3c_device_dm9000, // dm9000 driver add by acanoe
  6. #endif
  7. // add by acanoe 2

  9. // &smdk6410_smsc911x,// Canceled by acanoe 对于OK6410 的网卡实验来说，这一项一定要注释掉。
  10. ...
  11. ...
  12. };

OK，编译成功。启动如下：


点击(此处)折叠或打开

  1. U-Boot 1.1.6 (Jul 8 2013 - 15:41:56) for SMDK6410

  3. ****************************************
  4. ** u-boot 1.1.6 **
  5. ** Updated for TE6410 Board **
  6. ** Version 1.0 (10-01-15) **
  7. ** OEM: Forlinx Embedded **
  8. ** Web: **
  9. ****************************************

  11. CPU: S3C6410 @532MHz
  12. Fclk = 532MHz, Hclk = 133MHz, Pclk = 66MHz, Serial = CLKUART (SYNC Mode)
  13. Board: SMDK6410
  14. DRAM: 128 MB
  15. Flash: 0 kB
  16. NAND: 256 MB
  17. In: serial
  18. Out: serial
  19. Err: serial
  20. Hit any key to stop autoboot: 0

  22. NAND read: device 0 offset 0x100000, size 0x300000
  23. 3145728 bytes read: OK
  24. Boot with zImage

  26. Starting kernel ...

  28. Uncompressing Linux... done, booting the kernel.
  29. Booting Linux on physical CPU 0
  30. Linux version 3.6.6 (ZhShiH@localhost.localdomain) (gcc version 4.4.3 (ctng-1.6.1) ) #10 Fri Jul 19 16:21:29 CST 2013
  31. S3C24XX Clocks, Copyright 2004 Simtec Electronics
  32. camera: no parent clock specified
  33. S3C64XX: PLL settings, A=532000000, M=532000000, E=24000000
  34. S3C64XX: HCLK2=266000000, HCLK=133000000, PCLK=66500000
  35. mout_apll: source is fout_apll (1), rate is 532000000
  36. mout_epll: source is epll (1), rate is 24000000
  37. mout_mpll: source is mpll (1), rate is 532000000
  38. usb-bus-host: source is clk_48m (0), rate is 48000000
  39. audio-bus: source is mout_epll (0), rate is 24000000
  40. audio-bus: source is mout_epll (0), rate is 24000000
  41. audio-bus: source is mout_epll (0), rate is 24000000
  42. irda-bus: source is mout_epll (0), rate is 24000000
  43. camera: no parent clock specified
  44. CPU: found DTCM0 8k @ 00000000, not enabled
  45. CPU: moved DTCM0 8k to fffe8000, enabled
  46. CPU: found DTCM1 8k @ 00000000, not enabled
  47. CPU: moved DTCM1 8k to fffea000, enabled
  48. CPU: found ITCM0 8k @ 00000000, not enabled
  49. CPU: moved ITCM0 8k to fffe0000, enabled
  50. CPU: found ITCM1 8k @ 00000000, not enabled
  51. CPU: moved ITCM1 8k to fffe2000, enabled
  52. Kernel command line: root=/dev/nfs nfsroot=192.168.1.108:/zhangsh/rootfs,nolock ip=192.168.1.109:192.168.1.108:192.168.1.1:25c
  53. PID hash table entries: 512 (order: -1, 2048 bytes)
  54. Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
  55. Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
  56. Memory: 128MB = 128MB total
  57. Memory: 125332k/125332k available, 5740k reserved, 0K highmem
  58. Virtual kernel memory layout:
  59. vector : 0xffff0000 - 0xffff1000 ( 4 kB)
  60. DTCM : 0xfffe8000 - 0xfffec000 ( 16 kB)
  61. ITCM : 0xfffe0000 - 0xfffe4000 ( 16 kB)
  62. fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
  63. vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
  64. lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
  65. modules : 0xbf000000 - 0xc0000000 ( 16 MB)
  66. .text : 0xc0008000 - 0xc03e17e0 (3942 kB)
  67. .init : 0xc03e2000 - 0xc0404bc4 ( 139 kB)
  68. .data : 0xc0406000 - 0xc043ce40 ( 220 kB)
  69. .bss : 0xc043d024 - 0xc0472f94 ( 216 kB)
  70. SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
  71. NR_IRQS:246
  72. VIC @f6000000: id 0x00041192, vendor 0x41
  73. VIC @f6010000: id 0x00041192, vendor 0x41
  74. sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
  75. Console: colour dummy device 80x30
  76. Calibrating delay loop... 353.89 BogoMIPS (lpj=1769472)
  77. pid_max: default: 32768 minimum: 301
  78. Mount-cache hash table entries: 512
  79. CPU: Testing write buffer coherency: ok
  80. Setting up static identity map for 0x502f65e0 - 0x502f663c
  81. NET: Registered protocol family 16
  82. DMA: preallocated 256 KiB pool for atomic coherent allocations
  83. s3c64xx_dma_init: Registering DMA channels
  84. PL080: IRQ 73, at c8846000, channels 0..8
  85. PL080: IRQ 74, at c8848000, channels 8..16
  86. bio: create slab at 0
  87. usbcore: registered new interface driver usbfs
  88. usbcore: registered new interface driver hub
  89. usbcore: registered new device driver usb
  90. s3c-i2c s3c2440-i2c.0: slave address 0x10
  91. s3c-i2c s3c2440-i2c.0: bus frequency set to 64 KHz
  92. s3c-i2c s3c2440-i2c.0: i2c-0: S3C I2C adapter
  93. s3c-i2c s3c2440-i2c.1: slave address 0x10
  94. s3c-i2c s3c2440-i2c.1: bus frequency set to 64 KHz
  95. s3c-i2c s3c2440-i2c.1: i2c-1: S3C I2C adapter
  96. NET: Registered protocol family 2
  97. TCP established hash table entries: 4096 (order: 3, 32768 bytes)
  98. TCP bind hash table entries: 4096 (order: 4, 81920 bytes)
  99. TCP: Hash tables configured (established 4096 bind 4096)
  100. TCP: reno registered
  101. UDP hash table entries: 256 (order: 1, 12288 bytes)
  102. UDP-Lite hash table entries: 256 (order: 1, 12288 bytes)
  103. RPC: Registered named UNIX socket transport module.
  104. RPC: Registered udp transport module.
  105. RPC: Registered tcp transport module.
  106. RPC: Registered tcp NFSv4.1 backchannel transport module.
  107. NFS: Registering the id_resolver key type
  108. Key type id_resolver registered
  109. Key type id_legacy registered
  110. ROMFS MTD (C) 2007 Red Hat, Inc.
  111. io scheduler noop registered
  112. io scheduler deadline registered
  113. io scheduler cfq registered (default)
  114. start plist test
  115. end plist test
  116. s3c-fb s3c-fb: window 0: fb
  117. Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
  118. s3c6400-uart.0: ttySAC0 at MMIO 0x7f005000 (irq = 69) is a S3C6400/10
  119. console [ttySAC0] enabled
  120. s3c6400-uart.1: ttySAC1 at MMIO 0x7f005400 (irq = 70) is a S3C6400/10
  121. s3c6400-uart.2: ttySAC2 at MMIO 0x7f005800 (irq = 71) is a S3C6400/10
  122. s3c6400-uart.3: ttySAC3 at MMIO 0x7f005c00 (irq = 72) is a S3C6400/10
  123. brd: module loaded
  124. loop: module loaded
  125. at24 0-0050: 1024 byte 24c08 EEPROM, writable, 1 bytes/write
  126. at24 1-0057: 16384 byte 24c128 EEPROM, writable, 1 bytes/write
  127. dm9000 Ethernet Driver, V1.31
  128. eth0: dm9000b at c885a000,c8c00004 IRQ 108 MAC: 08:90:00:a0:90:90 (platform data)
  129. ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
  130. mousedev: PS/2 mouse device common for all mice
  131. s3c-rtc s3c64xx-rtc: rtc disabled, re-enabling
  132. s3c-rtc s3c64xx-rtc: rtc core: registered s3c as rtc0
  133. i2c /dev entries driver
  134. sdhci: Secure Digital Host Controller Interface driver
  135. sdhci: Copyright(c) Pierre Ossman
  136. s3c-sdhci s3c-sdhci.0: clock source 0: mmc_busclk.0 (133000000 Hz)
  137. s3c-sdhci s3c-sdhci.0: clock source 2: mmc_busclk.2 (24000000 Hz)
  138. mmc0: SDHCI controller on samsung-hsmmc [s3c-sdhci.0] using ADMA
  139. mmc0: mmc_rescan_try_freq: trying to init card at 400000 Hz
  140. mmc0: mmc_rescan_try_freq: trying to init card at 300000 Hz
  141. Synopsys Designware Multimedia Card Interface Driver
  142. VUB300 Driver rom wait states = 1C irqpoll timeout = 0400usbcore: registered new interface driver vub300
  143. usbcore: registered new interface driver ushc
  144. usbcore: registered new interface driver usbhid
  145. usbhid: USB HID core driver
  146. TCP: cubic registered
  147. NET: Registered protocol family 10
  148. sit: IPv6 over IPv4 tunneling driver
  149. Key type dns_resolver registered
  150. VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
  151. mmc0: mmc_rescan_try_freq: trying to init card at 200000 Hz
  152. s3c-rtc s3c64xx-rtc: setting system clock to 2000-01-01 02:19:34 UTC (946693174)
  153. mmc0: mmc_rescan_try_freq: trying to init card at 100000 Hz
  154. dm9000 dm9000.0: eth0: link down
  155. IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
  156. dm9000 dm9000.0: eth0: link up, 100Mbps, full-duplex, no LPA
  157. IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
  158. IP-Config: Complete:
  159. device=eth0, addr=192.168.1.109, mask=255.255.255.0, gw=192.168.1.1
  160. host=192.168.1.109, domain=, nis-domain=(none)
  161. bootserver=192.168.1.108, rootserver=192.168.1.108, rootpath=
  162. VFS: Mounted root (nfs filesystem) on device 0:9.
  163. Freeing init memory: 136K

  165. Please press Enter to activate this console.

终于看到了久违的console！！！
感谢同学。


后续使用过程的问题：
某一次，不小心弄坏了服务端的rootfs，一时手贱就把rootfs删掉。不过幸好有个不完全版的备份。
再次解压出rootfs之后，启动出现如下错误：

点击(此处)折叠或打开

  1. Failed to execute /linuxrc. Attempting defaults...
  2. Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
检查rootfs文件系统：
1，存在linuxrc，链接到/bin/busybox；
2，linuxrc有可执行权限。

找了很久的原因，后来发现，需要将交叉编译器目录下的lib文件拷贝到nfs系统中。
如：
  1. yes | cp /opt/FriendlyARM/toolschain/4.4.3/arm-none-linux-gnueabi/lib/* /zhangsh/rootfs/lib/ -avf

注意，是/opt/FriendlyARM/toolschain/4.4.3/arm-none-linux-gnueabi/lib而不是/opt/FriendlyARM/toolschain/4.4.3/lib/

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