BB_black烧写img到flash一直不成功

    在 beagleboard.org release 的debian img用SD卡（16G）烧到BBBRev C (4GB eMMC) Flash时出错，换了几个img都一样出错，出错位置如下信息：

copying: [/dev/mmcblk0] -> [/dev/mmcblk1]

lsblk:

NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT

mmcblk0     179:0    0  14.9G  0 disk

|-mmcblk0p1 179:1    0    96M  0 part /boot/uboot

`-mmcblk0p2 179:2    0   1.6G  0 part /

-----------------------------

df -h | grep rootfs:

df: cannot read table of mounted file systems: No such file or directory

-----------------------------

Error: [/dev/mmcblk1] does not exist

writing to [/dev/mmcblk1] failed...

[    6.639902] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100

[    6.639902]

[    6.654355] [<c00114f1>] (unwind_backtrace+0x1/0x9c) from [<c04cb2fd>] (panic+0x59/0x15c)

[    6.665419] [<c04cb2fd>] (panic+0x59/0x15c) from [<c0033acf>] (do_exit+0x5ff/0x68c)

[    6.675944] [<c0033acf>] (do_exit+0x5ff/0x68c) from [<c0033b9f>] (do_group_exit+0x27/0x6c)

[    6.687142] [<c0033b9f>] (do_group_exit+0x27/0x6c) from [<c0033bef>] (sys_exit_group+0xb/0xc)

[    6.698642] [<c0033bef>] (sys_exit_group+0xb/0xc) from [<c000c841>] (ret_fast_syscall+0x1/0x46)

[    6.710340] drm_kms_helper: panic occurred, switching back to text console