Connect Telnet over Putty and Try
fdisk -lu /dev/mmcblk0
blkid|grep mmcblk0
Write the Output here
I Seen this kind of Failure once with Message
Fatal: Target device '/dev/mmcblk0p2' is not writable
and it was a Corrupted Partition on Box
If The Output Looks like
root@dm920:~# fdisk -lu /dev/mmcblk0
Disk /dev/mmcblk0: 7818 MB, 7818182656 bytes
4 heads, 16 sectors/track, 238592 cylinders, total 15269888 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk /dev/mmcblk0 doesn't contain a valid partition table
root@dm920:~# blkid|grep mmcblk0
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Otherwise the Good Partition Looks like
root@dm900:~# fdisk -lu /dev/mmcblk0
Found valid GPT with protective MBR; using GPT
Disk /dev/mmcblk0: 7634944 sectors, 3728M
Logical sector size: 512
Disk identifier (GUID): 4956757f-9fcb-4b4a-b80a-6e8a893f22df
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7634910
Number Start (sector) End (sector) Size Code Name
1 2048 65535 31.0M 0700 kernel
2 65536 2097151 992M 0700 rootfs
3 2097152 7634910 2703M 0700 data
root@dm900:~#
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There is Only Experimental Way to get your Box again to work
you have to Create Partition before you will be able to Flash new Image on it
How did you Damanaged your Partition does it Crashed before you Tried to Put new Image on Box ???
More Questions did you Installed before the VCP Drivers for Dream ??? Serial Connect
Then you Will be Able to make Bootlog
If in Bootlog you see
DDR0: !@ ffe0e780 <= ffe0df10 MEMSYS-0 @ f1100000 OK
DDR1: =@ ffe0e780 <= ffe0df10 MEMSYS-1 @ f1180000
MEMSYS ERROR: 00000001
Then your Memory is Corrupted
But i still Asume you just Crashed your Partition
You Can Recover it at your own Risk over Telnet with
sgdisk /dev/mmcblk0 -z -n 1:2048:65535 -c 1:kernel -t 1:8301 -n 2:65536:4194303 -c 2:rootfs -t 2:8307 -n 3:4194304: -c 3:data -t 3:8300
Use this with Care and Try After that
Use some more times
fdisk -lu / dev / mmcblk0
till you see Partitions are Ok
Load a new Image with Rescue Loader on Box after you see a Partition is Ok and Box will be like Before
With some Risk you will get it Alive again