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A20 Debug: C806 done!


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#26 tinybit

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Posted 30 July 2012 - 04:56 PM

no, no, I did not state it clearly sorry.

You need to enter into grub4dos by using syslinux and "kernel /grub.exe" and issue the "cat --hex (md)+1,128" command at the grub prompt.

do not start dos in any way during this test.

#27 davidecosta

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Posted 30 July 2012 - 05:09 PM

excuse me :(

Attached Thumbnails

  • 2012-07-30 19.05.27.jpg


#28 tinybit

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Posted 30 July 2012 - 05:21 PM

thanks

there is no problem with int0C. All hardware INTs from 08 to 0F are pointing to ROM F000:XXXX, so it should not fail at INT0C.

Could you please post a screen shot showing the hangup at 0C? Note: do not load device drivers or TSRs before grub.exe.

#29 davidecosta

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Posted 30 July 2012 - 05:24 PM

hummmm :(

Can you explain me

#30 tinybit

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Posted 30 July 2012 - 05:32 PM

earlier you said grub.exe failed with message of 00 01 02 03 04 05 06 07 08 09 0A 0B 0C_ , right?

according to your picture, it should not fail at this point. So I need to see your failure screen and confirm it.

If you can confirm now, then you need not post the screen shot.

Can you confirm the following is the message at failure?

00 01 02 03 04 05 06 07 08 09 0A 0B 0C_

(Of course grub.exe should be started from FreeDOS and CONFIG.SYS / AUTOEXEC.BAT are both not present.)

#31 davidecosta

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Posted 30 July 2012 - 05:48 PM

I've the propt grub>

can this error due to Atom +8gb of ram?

#32 tinybit

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Posted 30 July 2012 - 05:54 PM

You meant you successfully gain grub environment. Congratulations!

You failed pass the command-line parameter of --config-file=.... to grub.

You might have a typo.

It should have nothing to do with Atom CPU and your 8G RAM.

#33 davidecosta

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Posted 30 July 2012 - 05:58 PM

I don't undestrand why same pendrive works fine in 4 PC and don't works fine in one netbook.

After i make others tests

#34 tinybit

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Posted 30 July 2012 - 06:07 PM

that is because BIOS bugs.

good BIOSes can access USB with LBA mode and will seldom encounter failure.

An Not-So-Good BIOS can only access USB with CHS mode, and will have less ability to access the USB media, thus will encounter various problems.

CHS mode accessibility can only reach 8G of the USB media, or even much less.

#35 davidecosta

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Posted 30 July 2012 - 06:09 PM

btw very thanks for your support :)

#36 tinybit

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Posted 30 July 2012 - 06:13 PM

You are welcome.

This is midnight here. See you!

#37 davidecosta

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Posted 30 July 2012 - 07:11 PM

There are some things that are unexplained by my knowledge
This is an example

I added in autoexec.bat the line

keyb US

and now works fine.

#38 davidecosta

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Posted 30 July 2012 - 07:33 PM

false alarm

Works fine and...don't works fine ...as random



at first boot appears freezed, reboot...works very fine :)

Edited by davidecosta, 30 July 2012 - 09:52 PM.





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