Re: Regarding writing into raw file - Vladimir 'φ-coder/phcoder' Serbinenko

From: "Vladimir 'φ-coder/phcoder' Serbinenko" <phcoder@gmail.com>
To: grub-devel@gnu.org
Subject: Re: Regarding writing into raw file
Date: Tue, 25 Jan 2011 14:15:53 +0100	[thread overview]
Message-ID: <4D3ECD09.7000407@gmail.com> (raw)
In-Reply-To: <AANLkTin-e53gpG73AQik36Jm4jr9ZEeey_wLTaUZO9hO@mail.gmail.com>

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On 01/25/2011 02:01 PM, Gnanasekar Loganathan wrote:
> Actually i'm writing to the first 512 bytes only.
>   
You're not. You're writing to a sector well within the partition (the
one at part_start and not the one at 0)
> The value of SECTOR_SIZE is 512.
>
> Also i noticed that in loadenv.c, while reading the from grubenv file,
> read_hook is called. Why the read_hook is not called in this scenario?
>   
read_hook doesn't work with blocklists. You overengineer the stuff. Have
a look at e.g. gptsync.
> 2011/1/25 Vladimir 'φ-coder/phcoder' Serbinenko <phcoder@gmail.com>:
>   
>> On 01/25/2011 11:34 AM, Gnanasekar Loganathan wrote:
>>     
>>>     if(grub_disk_write(disk, part_start, 0, SECTOR_SIZE, nvbuf) ) {
>>>
>>>       
>> Writes as well as reads are to partition, not to entire disk erand so
>> are the sector numbers
>>
>> --
>> Regards
>> Vladimir 'φ-coder/phcoder' Serbinenko
>>
>>
>>
>> _______________________________________________
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>> Grub-devel@gnu.org
>> http://lists.gnu.org/mailman/listinfo/grub-devel
>>
>>
>>     
> _______________________________________________
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>
>   


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko


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