at my controller has multiple partitions but I can erase all but one, what 
could be the reason?


/ # cat /proc/mtd
> dev:    size   erasesize  name
> mtd0: 00080000 00020000 "xloader-nand"
> mtd1: 001c0000 00020000 "uboot-nand"
> mtd2: 00040000 00020000 "params-nand"
> mtd3: 00500000 00020000 "linux-nand"
> mtd4: 0f880000 00020000 "jffs2-nand"
> / # flash_eraseall /dev/mtd2
> Erasing 128 Kibyte @ 40000 - 100% complete.
> / # flash_eraseall /dev/mtd1
> flash_eraseall: can't open '/dev/mtd1': Permission denied
>
 
 

четверг, 3 июля 2014 г., 16:38:43 UTC+4 пользователь Андрей Кононов написал:
>
> I compared the two defсonfig, made ​​some changes from the donor and now 
> it worked (without uncorrectable error ) :) thank you for participating :)
>
> четверг, 3 июля 2014 г., 15:49:24 UTC+4 пользователь Андрей Кононов 
> написал:
>>
>> in google I found defсonfig which solve this problem, but it is excessive
>>
>> четверг, 3 июля 2014 г., 15:29:00 UTC+4 пользователь lisarden написал:
>>>
>>> dmesg
>>>
>>>
>>> 2014-07-03 15:26 GMT+04:00 Андрей Кононов <and...@gmail.com>:
>>>
>>>> I have these settings, except one (CONFIG_MTD_NAND_ECC=y). I add it to 
>>>> defchonfig but the situation has not changed :(. 
>>>>
>>>> четверг, 3 июля 2014 г., 14:50:58 UTC+4 пользователь lisarden написал:
>>>>>
>>>>> CONFIG_MTD=y
>>>>> CONFIG_MTD_CHAR=y
>>>>> CONFIG_MTD_BLKDEVS=y
>>>>> CONFIG_MTD_BLOCK=y
>>>>> CONFIG_MTD_NAND_ECC=y
>>>>> CONFIG_MTD_NAND=y
>>>>> CONFIG_MTD_NAND_OMAP2=y
>>>>> CONFIG_MTD_NAND_IDS=y
>>>>>
>>>>>
>>>>>
>>>>> 2014-07-03 14:46 GMT+04:00 Андрей Кононов <and...@gmail.com>:
>>>>>
>>>>>> what can i include in the kernel to organize writing mtd partitions?
>>>>>> kernel 2.6.32
>>>>>>
>>>>>>> / # flash_eraseall /dev/mtd3
>>>>>>> flash_eraseall: can't open '/dev/mtd3': No such device or address
>>>>>>> / # ls /dev/mtd*
>>>>>>> /dev/mtd0       /dev/mtd1ro     /dev/mtd3       /dev/mtd4ro     
>>>>>>> /dev/mtdblock2
>>>>>>> /dev/mtd0ro     /dev/mtd2       /dev/mtd3ro     /dev/mtdblock0  
>>>>>>> /dev/mtdblock3
>>>>>>> /dev/mtd1       /dev/mtd2ro     /dev/mtd4       /dev/mtdblock1  
>>>>>>> /dev/mtdblock4
>>>>>>>
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>>>>>
>>>>>
>>>>>
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>>

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