Author Topic: [FIXED] failed to read boot sector from bios device 100h error =1  (Read 15844 times)

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gds

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hi all


i have a gigabyte UD7 with i7 980X, 9800GT and 6Go of G skill

straight after to click on the logo of install dvd i have this message: failed to read boot sector from bios device 100h error =1

after: "starting darwin x86_64" and the computer reboot automatically!

here the video: sorry it is not a good one, but can help i think!

http://img94.imageshack.us/img94/2748/imag0003.mp4


i use chameleon 2 RC4

i tried many changes in bios and nothing change :(


if anyone has some ideas please feel free to write it here :D


ps: i use this method to install chameleon: http://efixusers.com/showthread.php?t=768

many people have the save configuration and no pbs with them!!!


thx a lot

« Last Edit: July 27, 2010, 03:22:45 AM by zef »

Gringo Vermelho

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Re: failed to read boot sector from bios device 100h error =1
« Reply #1 on: May 22, 2010, 08:46:32 PM »
I also see "failed to read boot sector from bios device 100h error =1" but it works anyway. I've seen reports from other people as well seeing this mysterious message, on perfectly working systems.

I don't think it's anything to worry about and I don't think it's related to your instant reboot. Most likely something went wrong when you installed Chameleon but it could be several things, it's not possible to tell what went wrong just from the information you've given. And the guide you followed is not much help either, who knows if you followed it to the letter.

I don't like it when people post guides and then say "please don't ask me for technical support".
10.9.5 - ASUS P8Z77-V Pro - i5 3570K - GTX 660 - Chameleon 2.3 svn-r2xxx
How to...
Install Chameleon: http://forum.voodooprojects.org/index.php/topic,649
Make your own Chameleon boot CD: http://forum.voodooprojects.org/index.php/topic,484.msg2131.html#msg2131

gds

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Re: failed to read boot sector from bios device 100h error =1
« Reply #2 on: May 22, 2010, 09:35:22 PM »
 thx

the reboot happens when it is written: starting darwin x86_64

also i tried with an efix 1.1 and the same pbs!


very strange...

But for sure this configuration is ok for chameleon and other!

i will see



konsti

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Re: failed to read boot sector from bios device 100h error =1
« Reply #3 on: July 09, 2010, 10:08:32 AM »
Guys, I also wanted to confirm that I get this error on my mobo, when in -v (verbose) mode, but the thing is that I got it in the past, using Chameleon 2 RC4 but also getting it now, using AsereBLN 1.1.9 too... it has to be something in the original code.

What could it be, though? Is the bootloader looking for an MBR partition? I have GUID. Is it looking for PATA device? I have SATA only. Did anyone manage to find an answer to this?

Of course, this is a displayed message--doesn't affect operation at all.

Azimutz

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Re: failed to read boot sector from bios device 100h error =1
« Reply #4 on: July 09, 2010, 11:00:46 PM »
I know that message... almost forgot it :) it's harmless.
Device 100h is a ramdisk (rd); the booter throws the message if there's no ramdisk mounted, when tries to check rd(0,0)/Extra... here. I found the message when testing some code changes; it was there all the time, just hidden by that brief moment after pressing Enter to boot, when the screen gets dark before verbose kicks in.
Why some of you guys see the message and others don't, must be related with the way the boot process flows on you configuration!?
We can also get it while booting after unmounting a ramdisk.
« Last Edit: July 12, 2010, 02:56:59 PM by Azimutz »
 System & Patches: http://goo.gl/i961
 Chameleon:
- trunk builds: http://goo.gl/9G1Hq
- pref pane: http://goo.gl/OL2UT

konsti

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Re: failed to read boot sector from bios device 100h error =1
« Reply #5 on: July 12, 2010, 09:45:33 AM »
Dear Azimutz, thank you for taking the time to clarify this issue. In your experience, do you think this is some code bug/residue or a normal functionality but with "poorer" code check as to when the error should be displayed?

At least us people now know that the brief text "Failed to read boot sector from BIOS device 100h error = 1" is not really an error  ;D

I know that message... almost forgot it :) it's harmless.
Device 100h is a ramdisk (rd); the booter throws the message if there's no ramdisk mounted, when tries to check rd(0,0)/Extra... here. I found the message when testing some code changes; it was there all the time, just hidden by that brief moment after pressing Enter to boot, when the screen gets dark before verbose kicks in.
Why some of you guys see the message and others don't, must be related with the way the boot process flows on you configuration!?
You can also get it while booting after unmounting a ramdisk.

Azimutz

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Re: failed to read boot sector from bios device 100h error =1
« Reply #6 on: July 12, 2010, 03:53:11 PM »
Konsti, in my little experience i'd say that this either got unnoticed or it was ignored, as it's just a warning message.
There's another rd(0,0) check here, when loading drivers; the "if" statement prevents the message, as the path is only checked if the statement is true (there's a ramdisk mounted), else it's ignored.
So, you be the judge  :)
All i can say is, i don't have the knowledge to fit that "if" statement on the function that issues the message (loadOverrideConfig). That stuff uses a loop and i hate loops >:( they are not noob friendly :P kidding.. but true, at least to me atm.
 System & Patches: http://goo.gl/i961
 Chameleon:
- trunk builds: http://goo.gl/9G1Hq
- pref pane: http://goo.gl/OL2UT

konsti

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Re: failed to read boot sector from bios device 100h error =1
« Reply #7 on: July 13, 2010, 10:43:59 AM »
Dear Azimutz thanks again for explaining. I see in your signature you post RC5 versions of Chameleon (for "testing").
Do you know if RC5 has fixed this error, or if the code has been indeed improved and we don't get the error unless it's necessary? Just speculating...

Konsti, in my little experience i'd say that this either got unnoticed or it was ignored, as it's just a warning message.
There's another rd(0,0) check here, when loading drivers; the "if" statement prevents the message, as the path is only checked if the statement is true (there's a ramdisk mounted), else it's ignored.
So, you be the judge  :)
All i can say is, i don't have the knowledge to fit that "if" statement on the function that issues the message (loadOverrideConfig). That stuff uses a loop and i hate loops >:( they are not noob friendly :P kidding.. but true, at least to me atm.

Azimutz

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Re: failed to read boot sector from bios device 100h error =1
« Reply #8 on: July 13, 2010, 07:08:04 PM »
Konsti, this stuff is not fixed on RC5. I have it fixed on the booter i use, but that's because i've been playing with a "different" search algorithm to load files, one that doesn't uses loops and has that "if" statement. That's how i found the message and were it came from. You shouldn't worry to much about it! :)
By the way, those builds i have on my signature have no changes at all to the original code! I mention they are for "testing" just because there's no official RC5 release. They are meant for people that don't know how to compile from source.
 System & Patches: http://goo.gl/i961
 Chameleon:
- trunk builds: http://goo.gl/9G1Hq
- pref pane: http://goo.gl/OL2UT

zef

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Re: failed to read boot sector from bios device 100h error =1
« Reply #9 on: July 26, 2010, 05:01:42 PM »
Konsti, this stuff is not fixed on RC5.

I have an idea how to fix it at low level. I'll do it when i get back later this evening :)

ASUS P8Z68-V PRO/GEN3 | i5-2500k | 16GB RAM | GTX560 | Keyboard | Mouse | Devilsound DAC

Azimutz

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Re: failed to read boot sector from bios device 100h error =1
« Reply #10 on: July 26, 2010, 07:47:49 PM »
Looking forward to see what your cooking :)
 System & Patches: http://goo.gl/i961
 Chameleon:
- trunk builds: http://goo.gl/9G1Hq
- pref pane: http://goo.gl/OL2UT

zef

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ASUS P8Z68-V PRO/GEN3 | i5-2500k | 16GB RAM | GTX560 | Keyboard | Mouse | Devilsound DAC

konsti

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Re: [FIXED] failed to read boot sector from bios device 100h error =1
« Reply #12 on: July 27, 2010, 10:32:02 AM »
Dear zef and other members, I have to thank you for your work, I guess we will now wait for a courageous guy to compile it and release it as newer RC5 version? Is this a final code that you're submitting, zef? Are we expecting to see it implemented?  8)

EDIT: Dear Azimutz will you perhaps include this fix in your next build/compilation that you offer in your signature?
« Last Edit: July 27, 2010, 10:35:25 AM by konsti »

Azimutz

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Re: [FIXED] failed to read boot sector from bios device 100h error =1
« Reply #13 on: July 27, 2010, 12:23:41 PM »
Konsti, going to check now what Zef cooked up :) still didn't checked the repo today.
Will update this post later....



Chefe Zef, the meal was delicious :) thanks for the recipe.
You just missed removing a check on drivers.c, loadDrivers.
That's it, nice job!
« Last Edit: July 27, 2010, 01:30:56 PM by Azimutz »
 System & Patches: http://goo.gl/i961
 Chameleon:
- trunk builds: http://goo.gl/9G1Hq
- pref pane: http://goo.gl/OL2UT

zef

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Re: [FIXED] failed to read boot sector from bios device 100h error =1
« Reply #14 on: July 28, 2010, 12:40:14 AM »
Chefe Zef, the meal was delicious :) thanks for the recipe.
You just missed removing a check on drivers.c, loadDrivers.
That's it, nice job!

Hehe :)

The the check in drivers.c is on purpose. The first extension loading attempt starts on rd(0,0)/Extra if it's not redirected to bt(0,0).
ASUS P8Z68-V PRO/GEN3 | i5-2500k | 16GB RAM | GTX560 | Keyboard | Mouse | Devilsound DAC