dynabook az へubuntuのインストールについて

http://ac100.gudinna.com/README/
を参考に

USBでPCとdynabook az を接続

sudo LD_LIBRARY_PATH=. ./nvflash --bl ../prebuilt/fastboot.stock.bin --download 5 path to tegra-2.6.29-arm2-ac100-boot.img　を実行し
以下ログです。

linux4tegra/nvflash$ sudo LD_LIBRARY_PATH=. ./nvflash --bl ../prebuilt/fastboot.stock.bin --download 5 ./tegra-2.6.29-arm2-ac100-boot.img
[sudo] password for ken:
Nvflash started
rcm version 0X20001
System Information:
   chip name: t20
   chip id: 0x20 major: 1 minor: 2
   chip sku: 0x8
   chip uid: 0x170061894360a117
   macrovision: disabled
   hdcp: enabled
   sbk burned: false
   dk burned: false
   boot device: emmc
   operating mode: 3
   device config strap: 0
   device config fuse: 0
   sdram config strap: 0

downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: ../prebuilt/fastboot.stock.bin
| 931920/931920 bytes sent
../prebuilt/fastboot.stock.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
sending file: ./tegra-2.6.29-arm2-ac100-boot.img
/ 5189632/5189632 bytes sent
./tegra-2.6.29-arm2-ac100-boot.img sent successfully
ken@ken-J2N:~/PG/linux4tegra/nvflash$ sudo LD_LIBRARY_PATH=. ./nvflash --bl ../prebuilt/fastboot.stock.bin --download 5 ./tegra-2.6.29-arm2-ac100-boot.img
Nvflash started
rcm version 0X20001
System Information:
   chip name: t20
   chip id: 0x20 major: 1 minor: 2
   chip sku: 0x8
   chip uid: 0x170061894360a117
   macrovision: disabled
   hdcp: enabled
   sbk burned: false
   dk burned: false
   boot device: emmc
   operating mode: 3
   device config strap: 0
   device config fuse: 0
   sdram config strap: 0

downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: ../prebuilt/fastboot.stock.bin
| 931920/931920 bytes sent
../prebuilt/fastboot.stock.bin sent successfully
waiting for bootloader to initialize
bootloader downloaded successfully
sending file: ./tegra-2.6.29-arm2-ac100-boot.img
/ 5189632/5189632 bytes sent
./tegra-2.6.29-arm2-ac100-boot.img sent successfully


HOMEキー 電源ボタンで起動し1を選択すると Androidのロボットのキャラクターマークが出ます。SDカードからBOOTしない状態です。
SDカードは SILICON POWER SDHC 32GBを使用しています。　


どなたか経験のある方何卒、情報をお願いします。