Re: Regarding writing into raw file

[Gnanasekar Loganathan]

Hi,

Attached my c file, kindly review and let me know if any mistakes that
i did in this file.

Thanks,
Gnana

2011/1/25 Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden>:
> On 01/25/2011 07:02 AM, Gnanasekar Loganathan wrote:
>> Hi Vladimir,
>>
>> I'm using the grub_disk_write function to write the data.
>>
> This should work (as long as used right, of course).
>> My goal is to erase all the data in that particular partition.
>>
>>
> GRUB isn't the right place to write so much data. I recommend having a
> small kernel with ramdisk.
>> Booted os will do read and write operation on that partition.
>>
>> -Gnana
>>
>> 2011/1/24 Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden>:
>>
>>> On 01/24/2011 03:49 PM, Gnanasekar Loganathan wrote:
>>>
>>>> Hi All,
>>>>
>>>> I try to opening a file called "(hd0,2,a)+10" from GRUB.
>>>>
>>>>
>>> This is old syntax. New one is (hd0,netbsd1)
>>>
>>>> For me open got success and able read some of the data.
>>>> But i'm not able to write some data into the file, getting "out of
>>>> partition" error.
>>>>
>>>>
>>> GRUB has no file writing functions whatsoever, only disk writing
>>> (grub_disk_write)
>>> You can look into save_env in grub-core/commands/loadenv.c for reference
>>> on the limited file overwrite possibilities.
>>> I would be able to help better if I knew what your end goal is.
>>>
>>>> Kindly help me, how to open, read and write into a raw file from the GRUB.
>>>>
>>>> FYI: Partition type is NetBSD one.
>>>>
>>>> If you need any info, kindly revert back.
>>>>
>>>> Thanks,
>>>> Gnana
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>>
>>>
>>> --
>>> Regards
>>> Vladimir 'φ-coder/phcoder' Serbinenko
>>>
>>>
>>>
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>>>
>>>
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>>
>
>
> --
> Regards
> Vladimir 'φ-coder/phcoder' Serbinenko
>
>
>
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>

dev_reset.c
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