Re: Linux syscalls

arargh405NOSPAM_at_NOW.AT.arargh.com
Date: 06/03/04 

Date: Thu, 03 Jun 2004 16:05:30 -0500

On Thu, 03 Jun 2004 12:41:18 GMT, Robert Redelmeier
<redelm@ev1.net.invalid> wrote:

>arargh405NOSPAM@now.at.arargh.com wrote:
>> On Wed, 02 Jun 2004 13:22:03 GMT, Robert Redelmeier
>> <redelm@ev1.net.invalid> wrote:
>>>AFAIK, MS-WinNT and later vers (incl XP) use MS-DOS as a
>>>kernel bootloader. I think that "Safe Mode" screen is MS-DOS.
>>
>> No, I think not. I think the the boot sector loads
>> 'ntldr' and goes from there.
>
>I think it's _much_ more complex than that.
>My work MS-Win2k system C:\ shows [in part]:
>
>-rwxrwxrwx 1 user 0 Apr 9 2003 AUTOEXEC.BAT
>-rw-rw-rw- 1 user 0 Apr 9 2003 CONFIG.SYS
>-r--r--r-- 1 user 0 Apr 9 2003 IO.SYS
>-r--r--r-- 1 user 0 Apr 9 2003 MSDOS.SYS
>-r-xr-xr-x 1 user 34724 May 24 07:14 NTDETECT.COM
>drwxrwxrwx 1 user 0 Apr 27 12:56 System Volume Information
>drwxrwxrwx 1 user 0 May 26 06:58 WINNT
>-r-xr-xr-x 1 user 150528 Jul 21 2002 arcldr.exe
>-r-xr-xr-x 1 user 163840 Jul 21 2002 arcsetup.exe
>-r--r--r-- 1 user 192 Apr 27 12:50 boot.ini
>-r--r--r-- 1 user 214432 May 24 07:14 ntldr
>
>The 0 size files are one I don't have priv's to read,
>but the first 4 look very much lis MS-DOS.
It's a quite hard to read the contents of an empty file. :-)
I do have privs on a win2000 system, and they are the same, empty.

>It also looks very much like `ntldr` is an MS-DOS *.COM file.
>But I don't pretend to be an MS-WinNT expert.
Yes, the first instruction does look the same, however ANY program can
start with a short jump. I would have to disassemble it, but it is
almost certainly a stand alone program. 

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