以下是分析記錄：
------------------------------------------------------------------------------
以上命令的參數可從 ubifs 掛載信息中提取：UBI: attaching mtd5 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB) // -p：物理擦除塊大小
UBI: logical eraseblock size: 129024 bytes // -e：邏輯擦除塊大小（LEB size）
UBI: smallest flash I/O unit: 2048 // -m：頁面大小
UBI: sub-page size: 512 // -s：最小的硬件輸入輸出頁面大小
UBI: VID header offset: 512 (aligned 512)
UBI: data offset: 2048
UBI: attached mtd5 to ubi0
UBI: MTD device name: "File System-1"
UBI: MTD device size: 162 MiB
UBI: number of good PEBs: 1295 // -c：最大的邏輯擦除塊數量，一般小於等於 block count -1
UBI: number of bad PEBs: 1 // -c：162*1024*1024/129024 = 1316, 162*1024*1024/（128*1024） = 1296（出錯！！！）
// 對我們這種情況，文件系統最多可以訪問卷上的 129024*812=100M 空間（可行！！！）
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: 1295
UBI: number of PEBs reserved for bad PEB handling: 12
UBI: max/mean erase counter: 2/0
UBI: image sequence number: 936292432
UBI: background thread "ubi_bgt0d" started, PID 471
------------------------------------------------------------------------------
UBIFS: recovery needed
UBIFS: recovery completed
UBIFS: mounted UBI device 0, volume 0, name "rootfs"
UBIFS: file system size: 163602432 bytes (159768 KiB, 156 MiB, 1268 LEBs)
UBIFS: journal size: 9033728 bytes (8822 KiB, 8 MiB, 71 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: lzo
UBIFS: reserved for root: 0 bytes (0 KiB)
VFS: Mounted root (ubifs filesystem) on device 0:12.
Freeing init memory: 164K
Failed to execute /init. Attempting defaults...
INIT: version 2.86 booting
Starting udevtar: removing leading '/' from member names
------------------------------------------------------------------------------
cd /devkit8500d/work
/devkit8500d/tools/bin/mkfs.ubifs -r rootfs -m 2048 -e 129024 -c 1996 -o ubifs.img
# 通過 mkfs.ubifs 命令製作的出的 UBIFS 文件系統鏡像可在u-boot下使用ubi write命令燒寫到NAND FLASH上
# 使用 ubinize 命令生產實際可用空間的 ubi 格式鏡像，這樣纔可以通過 ubiformat 命令在板子上寫入該文件系統鏡像：
# ubinize，帶有UBI文件系統鏡像卷標
/devkit8500d/tools/bin/ubinize -o ubi.img -m 2048 -p 128KiB -s 512 /devkit8500d/tools/bin/ubinize.cfg
#/devkit8500d/tools/bin/ubinize -o ubi.img -m 2048 -p 128KiB -s 512 -O 2048 /devkit8500d/tools/bin/ubinize.cfg
cp /devkit8500d/work/ubi.img /mnt/hgfs/Ubuntu10.04/dyz/omap3devkit8500/image/
------------------------------------------------------------------------------
/devkit8500d/tools/bin/mkfs.ubifs -m 2048 -c 1296 -e 129024 -r /devkit8500d/work/rootfs -o ubifs.img
/devkit8500d/tools/bin/ubinize -o ubi.img -m 2048 -p 128KiB -s 512 /devkit8500d/tools/bin/ubinize.cfg
出現錯誤：
...
UBIFS error (pid 1): ubifs_get_sb: cannot open "ubi0:rootfs", error -19
VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
1f00 512 mtdblock0 (driver?)
...
------------------------------------------------------------------------------
修改 ubinize.cfg 文件
[ubifs]
mode=ubi
image=ubifs.img
vol_id=0
vol_size=162MiB
vol_type=dynamic
vol_name=rootfs
vol_flags=autoresize
結果：
失敗！！！
------------------------------------------------------------------------------
參考成功時候的信息
omap_vout omap_vout: : registered and initialized video device 1
UBIFS: mounted UBI device 0, volume 0, name "rootfs"
UBIFS: file system size: 163602432 bytes (159768 KiB, 156 MiB, 1268 LEBs) // 1268 LEBs 很重要！！！
UBIFS: journal size: 9033728 bytes (8822 KiB, 8 MiB, 71 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: lzo
UBIFS: reserved for root: 0 bytes (0 KiB)
VFS: Mounted root (ubifs filesystem) on device 0:12.
Freeing init memory: 164K
Failed to execute /init. Attempting defaults...
INIT: version 2.86 booting
Starting udevtar: removing leading '/' from member names
重新運行：
/devkit8500d/tools/bin/mkfs.ubifs -m 2048 -c 1268 -e 129024 -r /devkit8500d/work/rootfs -o ubifs.img
/devkit8500d/tools/bin/ubinize -o ubi.img -m 2048 -p 128KiB -s 512 /devkit8500d/tools/bin/ubinize.cfg
結果：
失敗！！！
------------------------------------------------------------------------------
/devkit8500d/tools/bin/mkfs.ubifs -m 2048 -c 812 -e 129024 -r /devkit8500d/work/rootfs -o ubifs.img
/devkit8500d/tools/bin/ubinize -o ubi.img -m 2048 -p 128KiB -s 512 /devkit8500d/tools/bin/ubinize.cfg
成功，還是 -c 的問題
------------------------------------------------------------------------------