问题就是这样，我先插了USB线到开发板上，给手机充电了会。
然后烧写zImage时，格式化NAND时，出现了坏区，以前都没有这种情况，刚刚出现的，请问是为什么？
##### FriendlyARM BIOS 2.0 for 2440 #####
[x] format NAND FLASH for Linux
[v] Download vivi
[k] Download linux kernel
[y] Download root_yaffs image
[a] Absolute User Application
[n] Download Nboot for WinCE
[l] Download WinCE boot-logo
[w] Download WinCE NK.bin
[d] Download & Run
[z] Download zImage into RAM
[g] Boot linux from RAM
[f] Format the nand flash
Boot the system
[s] Set the boot parameters
Backup NAND Flash to HOST through USB(upload)
[r] Restore NAND Flash from HOST through USB
[q] Goto shell of vivi
Version: 1026-2K
Enter your selection: X
pos: 0x068C0000 is bad
pos: 0x0B000000 is bad
pos: 0x0B020000 is bad
pos: 0x0B280000 is bad
pos: 0x0B7E0000 is bad
pos: 0x0BC60000 is bad
pos: 0x0FE60000 is bad
Found block size = 0x00020000
Erasing... ... done
Writing... ... done
Written 49152 bytes
Saved vivi private data
Kernel Partition is OK
