帮我看下这个什么情况啊？

[aqua6122]

TCP cubic registered
NET: Registered protocol family 17
lib80211: common routines for IEEE802.11 drivers
VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00 1024 mtdblock0 (driver?)
1f01 3072 mtdblock1 (driver?)
1f02 8192 mtdblock2 (driver?)
1f03 249856 mtdblock3 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
[<c002e180>] (unwind_backtrace+0x0/0xe4) from [<c02c38f0>] (panic+0x50/0xd0)
[<c02c38f0>] (panic+0x50/0xd0) from [<c0009014>] (mount_block_root+0x1c8/0x208)
[<c0009014>] (mount_block_root+0x1c8/0x208) from [<c00092a8>] (prepare_namespace+0x164/0x1b8)
[<c00092a8>] (prepare_namespace+0x164/0x1b8) from [<c00085ec>] (kernel_init+0x110/0x150)
[<c00085ec>] (kernel_init+0x110/0x150) from [<c0029e24>] (kernel_thread_exit+0x0/0x8)

[aqua6122]

我是安了wifi模块，改了rootfs的flash大小，到这里就进不了系统啦，拔下wifi就可以进，怎么回事啊？？？

[nadleeh]

Unable to mount root fs on unknown-block(31,2)

改了BL启动参数没？