13.6向文件系统添加FTP后，出现Failed to execute /linuxrc！！

如题，网卡加进去后没有这种情况，加ftp后出有问题了：

isofs_fill_super: bread failed, dev=mtdblock2, iso_blknum=64, block=128
yaffs: dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
yaffs: auto selecting yaffs2
yaffs_read_super: isCheckpointed 0
VFS: Mounted root (yaffs filesystem) on device 31:2.
Freeing init memory: 112K
Failed to execute /linuxrc.  Attempting defaults...
Kernel panic - not syncing: No init found.  Try passing init= option to kernel.
Backtrace:
[<c0029034>] (dump_backtrace+0x0/0x10c) from [<c02cad00>] (dump_stack+0x18/0x1c)
r7:00000000 r6:c03db6a0 r5:c03dafe0 r4:c03b7aa0
[<c02cace8>] (dump_stack+0x0/0x1c) from [<c02cad50>] (panic+0x4c/0x124)
[<c02cad04>] (panic+0x0/0x124) from [<c00244f0>] (init_post+0xec/0x178)
r3:00000010 r2:0000000d r1:0000000c r0:c035adec
[<c0024404>] (init_post+0x0/0x178) from [<c000847c>] (kernel_init+0xcc/0xf4)
r5:c001f208 r4:c001f57c
[<c00083b0>] (kernel_init+0x0/0xf4) from [<c0047790>] (do_exit+0x0/0x620)
r7:00000000 r6:00000000 r5:00000000 r4:00000000

我的ftp直接是的是天嵌做好的啊，网上查了不少，这貌似不跟内核有关吧？linuxre文件在哪里找？求大侠点一下，整一下午加一晚上了。。

文件系统根目录下有linuxrc文件，他是busybox的链接文件。

作为busybox的链接文件的linuxrc是有的，而且它们的权限均是可执行。