ubuntu与开发板建立usb nfs的问题

今天第一次尝试编译内核，其实很多选项不太理解，只是尝试，参考的是http://forum.ubuntu.org.cn/viewtopic.php?t=134404。
一直挺顺利，结果重启发现这样了
An error occurred while mounting /
press S to skip mounting or M for manual recovery
按了M后
[ 2.786188]ata4.01:failed to resume link(SControl 0)
[ 2.826954]EXT3-fs(sda1):error:couldn't mount because of unsupported optional features(240)
[ 2.827349]EXT2-fs(sda1):error:couldn't mount because of unsupported optional features(240)
fsck from util-linux-ng 2.17.2
/dev/sda 1:clean,312814/15081472 files,10983628/60297728 blocks
[ 17.152550]EXT4-fs(sda1):Filesystem with huge files cannot be mounted RDWR without CONFIG_LBDAF
mount:cannot remount /dev/sda1 read-write,s write-protected
mountall:Filesystem could not be mounyed :/
Spawning maintenance shell.
Root filesystem check failed.
A maintenance shell will now be started
CONTROL-D will terminate this shell and reboot the system
root@yunsun-laptop:~# 输入命令
有没有人能给点指教，先谢谢了。