TI中文支持网2G SD卡分成了2个分区，一分区FAT格式，2分区EXT4格式
1分区， 放入了MLO， u-boot.img， uImage，3个文件
2分区，放进了rootfs
上电启动后如下：
U-Boot SPL 2013.04-dirty (May 06 2013 – 16:12:47)
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
mmc_send_cmd : timeout: No status update
reading u-boot.img
reading u-boot.img
U-Boot 2013.04-dirty (May 06 2013 – 16:12:47)
I2C: ready
DRAM: 512 MiB
WARNING: Caches not enabled
NAND: No NAND device found!!!
0 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning – readenv() failed, using default environment
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net: <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot: 0
gpio: pin 53 (gpio 53) value is 1
mmc0 is current device
micro SD card found
mmc0 is current device
gpio: pin 54 (gpio 54) value is 1
SD/MMC found on device 0
reading uEnv.txt
** Unable to read file uEnv.txt **
gpio: pin 55 (gpio 55) value is 1
** File not found /boot/uImage **
U-Boot#
beaglebone自带EMMC的系统没有擦除，去掉SD卡，自带的系统就可以正常启动
wrty：
UBoot命令查看2个分区内容是正确的
U-Boot# fatls mmc 0:1 3194336 uimage.bin 364376 u-boot.img 100549 mlo
U-Boot# ext4ls mmc 0:2<DIR> 4096 .<DIR> 4096 ..<DIR> 16384 lost+found<DIR> 4096 bin<DIR> 4096 boot<DIR> 4096 dev<DIR> 4096 etc<DIR> 4096 home<DIR> 4096 lib<DIR> 4096 media<DIR> 4096 mnt<DIR> 4096 proc<DIR> 4096 sbin<DIR> 4096 srv<DIR> 4096 sys<SYM> 8 tmp<DIR> 4096 usr<DIR> 4096 var
Jian Zhou：
回复 wrty:
这个明显跑的是3.8以上的系统，应该把zImage放在文件系统的boot文件夹下
wrty：
回复 Jian Zhou:
fdisk -l Disk
/dev/sdb: 1995 MB, 1995964416 bytes 255 heads, 63 sectors/track, 242 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x58d05b11 Device Boot Start End Blocks Id System
/dev/sdb1 * 1 7 56196 c W95 FAT32 (LBA)
/dev/sdb2 8 242 1887637+ 83 Linux
sudo mount /dev/sdb1 /mnt/abner@abner-desktop:~$ ls /mnt/ MLO u-boot.img uImage.bin
zImage放在SD卡的BOOT分区中，linux内核是3.2版本的，前面的那个启动日志，应该是系统自带的，SD卡中的版本与那些不一样
