Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

where are my partition-tables ?

Posted on 1998-05-19
2
Medium Priority
?
276 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 400 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

Veeam Disaster Recovery in Microsoft Azure

Veeam PN for Microsoft Azure is a FREE solution designed to simplify and automate the setup of a DR site in Microsoft Azure using lightweight software-defined networking. It reduces the complexity of VPN deployments and is designed for businesses of ALL sizes.

Question has a verified solution.

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

I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…

636 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