按照申嵌视频教程，申嵌入门篇1-1 构建嵌入式Linux系统 -U-Boot生成的uImage,通过TFTP下载到NANDFLASH，然后按教程里面操作，bootm后，运行内核出错，停止了，请教各位大侠原因，提示部分信息如下：
eth0: link down
IP-Config: Complete:
device=eth0, addr=192.168.1.226, mask=255.255.255.0, gw=192.168.1.102,
host=SMDK2440A, domain=, nis-domain=arm9.net,
bootserver=192.168.1.102, rootserver=192.168.1.102, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.102
eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
Looking up port of RPC 100005/1 on 192.168.1.102
VFS: Mounted root (nfs filesystem) on device 0:11.
Freeing init memory: 160K
Warning: unable to open an initial console.
Kernel panic - not syncing: No init found. Try passing init= option to kernel.
Backtrace:
[<c0035270>] (dump_backtrace+0x0/0x10c) from [<c033a844>] (dump_stack+0x18/0x1c)
r7:00000000 r6:c04920b0 r5:c0491840 r4:c04581a0
[<c033a82c>] (dump_stack+0x0/0x1c) from [<c033a894>] (panic+0x4c/0x134)
[<c033a848>] (panic+0x0/0x134) from [<c00305a4>] (init_post+0xec/0x178)
r3:00000000 r2:c394c600 r1:c04c7000 r0:c03ea8fc
[<c00304b8>] (init_post+0x0/0x178) from [<c00084c4>] (kernel_init+0xf4/0x124)
r5:c0020380 r4:c0020380
[<c00083d0>] (kernel_init+0x0/0x124) from [<c004d1a4>] (do_exit+0x0/0x62c)
r7:00000000 r6:00000000 r5:00000000 r4:00000000。
