A40i编译

xuch198

内核编译成功之后，执行 ./build.sh -m pack_rootfs进行rootfs.ext4 生成，虽然没报错，但是看到
INFO: create ext4 rootfs ...
rm: cannot remove '/root/workspace/allwinner/A40i/bsp/lichee/out/sun8iw11p1/linux/common/rootfs.ext4': No such file or directory
rootdir=/root/workspace/allwinner/A40i/bsp/lichee/out/sun8iw11p1/linux/common/buildroot/target
table='/root/workspace/allwinner/A40i/bsp/lichee/tools/pack/common/devices/_device_table.txt'
makedevs: line 1: regular file '/root/workspace/allwinner/A40i/bsp/lichee/out/sun8iw11p1/linux/common/buildroot/target/bin/busybox' does not exist: No such file or directory
makedevs: line 2: regular file '/root/workspace/allwinner/A40i/bsp/lichee/out/sun8iw11p1/linux/common/buildroot/target/usr/libexec/dbus-daemon-launch-helper' does not exist: No such file or directory
/root/workspace/allwinner/A40i/bsp/lichee
INFO: create ext4 rootfs OK.

之后开始打包，报错：
unable to open file rootfs.fex
dl file rootfs.fex size too large
update_for_part_info -1
update mbr file fail
ERROR: bs update_mbr failed

请问该怎样解决:'(