Hi,
I badly need to know what triggers the NTLDR to automatically (without
pressing F8) bring up the safe mode menu. This normally occurs when a driver
has crashed during boot time.
I´ve looked at the registry, MBR, bootsector, files on bootpartition, etc.
but found nothing. I expect some sort of flag somewhere?
// Lars
their is two way to this…
First send the ASCII value of F8 to BIOS …
Second you have to write a boot loader and it will be get call before NTLDR…
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Regards;
Neeraj Kumar Jha
98195-37916
|
|
|
From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: [ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 14:36:15 +0100 > >Hi, > >I badly need to know what triggers the NTLDR to automatically (without >pressing F8) bring up the safe mode menu. This normally occurs when a driver >has crashed during boot time. > >I´ve looked at the registry, MBR, bootsector, files on bootpartition, etc. >but found nothing. I expect some sort of flag somewhere? > >// Lars > > > > >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to
ntdev as: xxxxx@hotmail.com >To unsubscribe send a blank email to xxxxx@lists.osr.com
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Yes, but I want to know what HOW the NTLDR knows to bring up the menu? What is the trigger? Where is the flag? MBR? Bootsector? Registry? File?
“neeraj jha” wrote in message news:xxxxx@ntdev…
their is two way to this…
First send the ASCII value of F8 to BIOS …
Second you have to write a boot loader and it will be get call before NTLDR…
Regards;
Neeraj Kumar Jha
98195-37916
>From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: [ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 14:36:15 +0100 > >Hi, > >I badly need to know what triggers the NTLDR to automatically (without >pressing F8) bring up the safe mode menu. This normally occurs when a driver >has crashed during boot time. > >I?ve looked at the registry, MBR, bootsector, files on bootpartition, etc. >but found nothing. I expect some sort of flag somewhere? > >// Lars > > > > >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to ntdev as: xxxxx@hotmail.com >To unsubscribe send a blank email to xxxxx@lists.osr.com
------------------------------------------------------------------------------
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what i think their is a switch statement .According to the value send by bootloader that menu is get displayed…
|
Regards;
Neeraj Kumar Jha
98195-37916
|
|
|
From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: Re:[ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 15:03:20 +0100 > >Yes, but I want to know what HOW the NTLDR knows to bring up the menu? What is the trigger? Where is the flag? MBR? Bootsector? Registry? File? > “neeraj jha” wrote in message news:xxxxx@ntdev… > their is two way to this… > > First send the ASCII value of F8 to BIOS … > > Second you have to write a boot loader and it will be get call before NTLDR… > > > > > > > > > > Regards; > > Neeraj Kumar Jha > > 98195-37916 > >
> > > >From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: [ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 14:36:15 +0100 > >Hi, > >I badly need to know what triggers the NTLDR to automatically (without >pressing F8) bring up the safe mode menu. This normally occurs when a driver >has crashed during boot time. > >I´ve looked at the registry, MBR, bootsector, files on bootpartition, etc. >but found nothing. I expect some sort of flag somewhere? > >// Lars > > > > >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to ntdev as: xxxxx@hotmail.com
>To unsubscribe send a blank email to xxxxx@lists.osr.com > > >------------------------------------------------------------------------------ > Apply to over 75,000 jobs now. Post your CV on naukri.com today. >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to ntdev as: unknown lmsubst tag argument: ‘’ >To unsubscribe send a blank email to xxxxx@lists.osr.com
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Ok, but where does that value come from? Must be stored on HD somewhere?
I need to know which file/sector/registry hive that contains that “dirty boot” flag.
“neeraj jha” wrote in message news:xxxxx@ntdev…
what i think their is a switch statement .According to the value send by bootloader that menu is get displayed…
Regards;
Neeraj Kumar Jha
98195-37916
>From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: Re:[ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 15:03:20 +0100 > >Yes, but I want to know what HOW the NTLDR knows to bring up the menu? What is the trigger? Where is the flag? MBR? Bootsector? Registry? File? > “neeraj jha” wrote in message news:xxxxx@ntdev… > their is two way to this… > > First send the ASCII value of F8 to BIOS … > > Second you have to write a boot loader and it will be get call before NTLDR… > > > > > > > > > > Regards; > > Neeraj Kumar Jha > > 98195-37916 > > > > > >From: “Lars Karlsson” >Reply-To: “Windows System Software Devs Interest List” >To: “Windows System Software Devs Interest List” >Subject: [ntdev] Safe mode menu trigger >Date: Fri, 4 Mar 2005 14:36:15 +0100 > >Hi, > >I badly need to know what triggers the NTLDR to automatically (without >pressing F8) bring up the safe mode menu. This normally occurs when a driver >has crashed during boot time. > >I?ve looked at the registry, MBR, bootsector, files on bootpartition, etc. >but found nothing. I expect some sort of flag somewhere? > >// Lars > > > > >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to ntdev as: xxxxx@hotmail.com >To unsubscribe send a blank email to xxxxx@lists.osr.com > > >------------------------------------------------------------------------------ > Apply to over 75,000 jobs now. Post your CV on naukri.com today. >— >Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256 > >You are currently subscribed to ntdev as: unknown lmsubst tag argument: ‘’ >To unsubscribe send a blank email to xxxxx@lists.osr.com
------------------------------------------------------------------------------
Cool ringtones, snazzy logos. Expressive MMS cards and pix. Tune in to a whole new world.
Lars Karlsson wrote:
Ok, but where does that value come from? Must be stored on HD somewhere?
I need to know which file/sector/registry hive that contains that “dirty
boot” flag.
Would it be unreasonable for me to ask why you want to know this? What
is it that you’re trying to do/fix/avoid/hack??
Peter
OSR
Well, not for production code. But in some cases on our testing environment
I badly need to to avoid this menu to be shown.
I´ve tried comparing the registry, MBR, Bootsector, and “dir /s” listings
but found nothing. Guess it´s time to dust off that good old disasm… sigh.
// Lars
“Peter Viscarola (OSR)” wrote in message
news:xxxxx@ntdev…
> Lars Karlsson wrote:
>> Ok, but where does that value come from? Must be stored on HD somewhere?
>> I need to know which file/sector/registry hive that contains that “dirty
>> boot” flag.
>>
>
> Would it be unreasonable for me to ask why you want to know this? What is
> it that you’re trying to do/fix/avoid/hack??
>
> Peter
> OSR
>
http://www.infocellar.com/winxp/disk-checking.htm
BR,
Rob Linegar
Software Engineer
Data Encryption Systems Limited
www.des.co.uk | www.deslock.com
-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of Lars Karlsson
Sent: 04 March 2005 15:10
To: Windows System Software Devs Interest List
Subject: Re:[ntdev] Safe mode menu trigger
Well, not for production code. But in some cases on our testing environment
I badly need to to avoid this menu to be shown.
I?ve tried comparing the registry, MBR, Bootsector, and “dir /s” listings
but found nothing. Guess it?s time to dust off that good old disasm… sigh.
// Lars
“Peter Viscarola (OSR)” wrote in message
news:xxxxx@ntdev…
> Lars Karlsson wrote:
>> Ok, but where does that value come from? Must be stored on HD somewhere?
>> I need to know which file/sector/registry hive that contains that “dirty
>> boot” flag.
>>
>
> Would it be unreasonable for me to ask why you want to know this? What is
> it that you’re trying to do/fix/avoid/hack??
>
> Peter
> OSR
>
—
Questions? First check the Kernel Driver FAQ at http://www.osronline.com/article.cfm?id=256
You are currently subscribed to ntdev as: xxxxx@des.co.uk
To unsubscribe send a blank email to xxxxx@lists.osr.com