Solved

where are my partition-tables ?

Posted on 1998-05-19
2
271 Views
Last Modified: 2008-02-01
I would show (edit) my partition-tables with a hex-editor. So I start the hex-editor and go to position 1FEh at the first sektor of the harddisk --> and I see AAh 55h --> fine this must be the MBR.
I know, the first partition-table starts at 1BEh, the second at 1CEh ond so on.

But! At this Positions (1BEh - 1FDh) I found only the text
"Kein System oder Laufwerksfehler. Wechseln und Taste druecken..." -- ore in english "No system disk ore disk error .....".

Wehre are my partition-tables with the 16 byte Info (status, typ, start, end ...)???

Any ideas?

Bye Christian
0
Comment
Question by:cbo120897
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 2

Expert Comment

by:tbaffy
ID: 1016898
Christian,

You have this information correct.  The Master Boot Record is the first physical sector on your hard disk.  The offsets of the important information are:

000h  bootstrap loader code
1BEh  1st partition table entry
1CEh  2nd partition table entry
1DEh  3rd partition table entry
1EEh  4th partition table entry
1FEh  ID code (AA55h)

What it sounds like to me is that you are reading the first sector from a logical drive (partition), not the physical drive.  This would cause you to read the partition boot sector, not the MBR.

Tom
0
 
LVL 2

Accepted Solution

by:
tbaffy earned 100 total points
ID: 1016899
Christian,

Sorry I posted as a comment instead of an answer so I am re-posting.

You have this information correct.  The Master Boot Record is the first physical sector on your hard disk.  The offsets of the important information are:

000h  bootstrap loader code
1BEh  1st partition table entry
1CEh  2nd partition table entry
1DEh  3rd partition table entry
1EEh  4th partition table entry
1FEh  ID code (AA55h)

What it sounds like to me is that you are reading the first sector from a logical drive (partition), not the physical drive.  This would cause you to read the partition boot sector, not the MBR. The best clue to this is how you select the drives.  If it is selecting the drive by letter (C:, D:, etc) the this is a logical drive.  If it refers to the drives with numbers (drive 0, drive 1, etc) then they are physical drives.

Tom
0

Featured Post

Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Repairing a physically broken flash drive 4 103
evulating CPU from family/model/stepping #s 6 65
Can I install Windows on a Chromebook? 3 82
When to add more RAM / Memory 19 68
What do we know about Legacy Video Conferencing? - Full IT support needed! - Complicated systems at outrageous prices! - Intense training required! Highfive believes we need to embrace a new alternative.
A clone is a duplicate copy. Sheep have been cloned and maybe someday even people will be cloned, but disk cloning (performed by the hard drive cloning software) is a vital tool used to manage and protect data. Let’s look at what hard drive cloning …
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…

737 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question