Re: Grub2 can not detect usb disk

From: Rock Cui <rockcui@viatech.com.cn>
To: grub-devel@gnu.org
Subject: Re: Grub2 can not detect usb disk
Date: Thu, 21 Jul 2011 09:19:58 +0800	[thread overview]
Message-ID: <4E277EBE.8000109@viatech.com.cn> (raw)
In-Reply-To: <4E2749EA.8080507@gmail.com>

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Sorry, it's the 56th line:

table_item = (grub_linuxbios_table_item_t) ((long) table_header +
                     (long) table_header->size);
the (long)table_header->size, I think it is not same with coreboot.

Now I can build a payload with "--with-platform=multiboot" that can boot 
my machine, not the "--with-platform=coreboot".
In the later mail I sent to you, there are same detail.

BRs,

Rock.

>
>> I have read the source code about the mmap of grub and of corebootV4,
>> I found that the size of their table header struct are not same, and I
>> think ,in the file "mmap.c" of grub2,on the 53rd line, the offset of
>> the first table item may be error.
> In my copy 53rd line is completely empty. Could you detail the error?
>> BRs,
>> Rock.
>>
>> At 2011-07-05 14:35:28,"Cui Lei"<neverforget_2002@163.com>  wrote:
>>
>>      I think the "skip=2146422784" is too big.
>>>        I received you reply this monday, then my office PC had a
>>>      problem ,can not power on, so I write you late.
>>>      I have tried to run "dd", but got "Reading a error address".
>>>>      On 01.07.2011 08:57, Rock Cui wrote:
>>>>>      Sorry,I am careless, my log file is not empty, please refer to the
>>>>>      attachment.
>>>>>
>>>>      I would also need another memory location for full diagnostics:
>>>>      sudo dd if=/dev/mem of=tables bs=1 count=65536 skip=2146422784
>>>>      Looking at the code, the only way it can hang AFAICT should be fixed by
>>>>      attached patch (mostly guessing)
>>>>>>      1. I have tried the "--with-platform=multiboot" option, but when
>>>>>>      booting it show me:
>>>>>>      /*********************/
>>>>>>      Welcome to GRUB!
>>>>>>      out of memory
>>>>>>      Aborted.
>>>>>>      /*********************/
>>>>>>      2. The /dev/mem you need , how can I get it? I want it should be from
>>>>>>      the "/" , then I must enter the ubuntu.
>>>>>>      So I use the grub1.98 as coreboot payload and boot my ubuntu11.04.
>>>>>>      But when I copy the /dev/mem to a log file with "sudo",
>>>>>>      I was told "You can not do it!" : (
>>>>>>
>>>>>>
>>>>>>>      On 30.06.2011 04:38, Cui Lei wrote:
>>>>>>>>      I have found the the last version which can boot my machine, it is
>>>>>>>>      the r2348. The r2349 can not boot it.
>>>>>>>>      So I checked out the changelog from 2348 to 2349 :
>>>>>>>>
>>>>>>>      Ironically I did it because i386-coreboot didn't work in my tests.
>>>>>>>      Could
>>>>>>>      you send me the first 128K of /dev/mem ? Meanwhile you can try
>>>>>>>      i386-multiboot port.
>>>>>>>
>>>>>>>      _______________________________________________
>>>>>>>      Grub-devel mailing list
>>>>>>>      Grub-devel@gnu.org
>>>>>>>      https://lists.gnu.org/mailman/listinfo/grub-devel
>>>>>>      _______________________________________________
>>>>>>      Grub-devel mailing list
>>>>>>      Grub-devel@gnu.org
>>>>>>      https://lists.gnu.org/mailman/listinfo/grub-devel
>>>>>>
>>>>>      _______________________________________________
>>>>>      Grub-devel mailing list
>>>>>      Grub-devel@gnu.org
>>>>>      https://lists.gnu.org/mailman/listinfo/grub-devel
>>>>
>>>>      _______________________________________________
>>>>      Grub-devel mailing list
>>>>      Grub-devel@gnu.org
>>>>      https://lists.gnu.org/mailman/listinfo/grub-devel
>>
>>
>>
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