我用的ubuntu系统，挂载启东市时一直出现
eth0: link down
IP-Config: Complete:
device=eth0, addr=192.168.1.230, mask=255.255.255.0, gw=192.168.1.1,
host=sbc2440, domain=, nis-domain=arm9.net,
bootserver=192.168.1.104, rootserver=192.168.1.104, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.104
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
Looking up port of RPC 100005/1 on 192.168.1.104
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.
[<c0035270>] (dump_backtrace+0x0/0x10c) from [<c03958f0>] (dump_stack+0x18/0x1c)
r7:00000000 r6:c0503ed0 r5:c0503660 r4:c04c61a0
[<c03958d8>] (dump_stack+0x0/0x1c) from [<c0395940>] (panic+0x4c/0x134)
[<c03958f4>] (panic+0x0/0x134) from [<c00305a4>] (init_post+0xec/0x178)
r3:00000000 r2:c394a600 r1:c0539000 r0:c045348c
[<c00304b8>] (init_post+0x0/0x178) from [<c00084c4>] (kernel_init+0xf4/0x124)
r5:c00205d4 r4:c00205d4
[<c00083d0>] (kernel_init+0x0/0x124) from [<c004d1a4>] (do_exit+0x0/0x62c)
r7:00000000 r6:00000000 r5:00000000 r4:00000000
不知道是什么问题，还望大虾们给解决下
