U-BOOT和内核代码均是使用tiny6410自带光盘里面的资源。板子flash是MLC2型 2GB
buildroot对文件系统的配置如下：
[*] ubifs root filesystem (0xfc000) UBI logical erase block size (0x2000) UBI minimum I/O size (128) Maximum LEB count ubifs runtime compression (lzo) ---> Compression method (no compression) ---> [*] Embed into an UBI image (0x100000) UBI physical erase block size (0) UBI sub-page size
下载生成的ubi文件到单板后，打印信息如下：
NAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit)
Creating 3 MTD partitions on "NAND 2GiB 3,3V 8-bit":
0x000000000000-0x000000400000 : "Bootloader"
0x000000400000-0x000000c00000 : "Kernel"
0x000000c00000-0x000080000000 : "File System"
UBI: attaching mtd2 to ubi0
UBI: physical eraseblock size: 1048576 bytes (1024 KiB)
UBI: logical eraseblock size: 1032192 bytes
UBI: smallest flash I/O unit: 8192
UBI: VID header offset: 8192 (aligned 8192)
UBI: data offset: 16384
UBI warning: process_eb: valid VID header but corrupted EC header at PEB 0
UBI warning: process_eb: valid VID header but corrupted EC header at PEB 1
UBI warning: process_eb: valid VID header but corrupted EC header at PEB 2
UBI error: check_corruption: PEB 13 contains corrupted VID header, and the data does not contain all 0xFF, this may be a non-UBI PEB or a severe VID header corruption which requires manual inspection
UBI error: check_what_we_have: 1 PEBs are corrupted and preserved
Corrupted PEBs are: 13
UBI: max. sequence number: 0
UBI: volume 0 ("rootfs") re-sized from 15 to 2006 LEBs
UBI: attached mtd2 to ubi0
UBI: MTD device name: "File System"
UBI: MTD device size: 2036 MiB
UBI: number of good PEBs: 2031
UBI: number of bad PEBs: 5
UBI: number of corrupted PEBs: 1
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 2030
UBI: number of PEBs reserved for bad PEB handling: 20
UBI: max/mean erase counter: 1/0
UBI: image sequence number: 1492634947
UBI: background thread "ubi_bgt0d" started, PID 634
这个问题想问下，大概是什么原因造成的呢？多谢
