I understood now, thanks for prompt reply. However when i try to backup my mtd0, i get:
[root@alarm tmp]# /usr/sbin/nanddump -o -f mtd0.dump /dev/mtd0
ECC failed: 12253
ECC corrected: 20
Number of bad blocks: 0
Number of bbt blocks: 0
Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x08000000...
ECC: 8 uncorrectable bitflip(s) at offset 0x00040000
ECC: 8 uncorrectable bitflip(s) at offset 0x00040800
ECC: 8 uncorrectable bitflip(s) at offset 0x00041000
ECC: 8 uncorrectable bitflip(s) at offset 0x00041800
ECC: 8 uncorrectable bitflip(s) at offset 0x00042000
ECC: 8 uncorrectable bitflip(s) at offset 0x00042800
ECC: 8 uncorrectable bitflip(s) at offset 0x00043000
etc.
Is there something wrong? I am tempted to ignore this and go ahead and flash it..
[root@alarm tmp]# /usr/sbin/nanddump -o -f mtd0.dump /dev/mtd0
ECC failed: 12253
ECC corrected: 20
Number of bad blocks: 0
Number of bbt blocks: 0
Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x08000000...
ECC: 8 uncorrectable bitflip(s) at offset 0x00040000
ECC: 8 uncorrectable bitflip(s) at offset 0x00040800
ECC: 8 uncorrectable bitflip(s) at offset 0x00041000
ECC: 8 uncorrectable bitflip(s) at offset 0x00041800
ECC: 8 uncorrectable bitflip(s) at offset 0x00042000
ECC: 8 uncorrectable bitflip(s) at offset 0x00042800
ECC: 8 uncorrectable bitflip(s) at offset 0x00043000
etc.
Is there something wrong? I am tempted to ignore this and go ahead and flash it..