dynamic disk unreadable

A

Anders

I have two hard drives in my computer. The first disk
contains XP and the software, the second contains
personal stuff. The second disk is installed using NTFS
dynamic disk.
Last weekedend I formated the XP disk, and installed XP
again. After installing, the second disk comes up
as "unreadable" dynamic disk.
Is there a way to make it readable? I haven't done
anything to it, so all the data should be there.


Regards
Anders
 
G

Guest

Hi Anders,

I have the EXACT same problem. What I've read so far indicates that when we
re-installed XP Pro, it may have attempted to change our secondary dynamic
disks to basic disks, and now the dynamic "datatbase" may be corrupt, and
therefore unreadable. Non of my research in the last 2 days has uncovered a
way to solve this without MS Support walking us through the correction steps.

Looks like you had your problem a couple weeks ago; am I consistant with
your findings? Have you solved your problem? I have 160GB of data at risk!!

Thanks,
LT
 
F

funnyid

Similar / same problem - would love a solution...
Here's my situation background: I was getting BSODs way too often o
my home-built PC, and I ended up determining that the problem was my
year old mobo with the cracked and discolored capacitors. So
upgraded my mobo from a Socket A/AMD 760 EPoX board to a Socke
754/nForce3 Giga-Byte board. In the process, I also had to replace m
1GHz Athlon proc with a 3000+ Athlon64 and I put in 512MB of brand ne
PC3200 RAM from Crucial. Everything else in the case stayed the same
("Everything else in the case" = 128MB AGP card, 100MB Zip-Master o
IDE0, CD-RW-Slave on IDE0, boot drive-120GB EIDE WD1200JB-Master o
IDE1, and my data drive-120GB EIDE WD1200JB-Slave on IDE1)

What Happened Next (details of how my problem arose): After connectin
all the old components to the new mobo and powering up, I would get
very brief BSOD (I could never read the actual error) and then th
machine would re-boot. I researched the problem and determined that
would have to re-install my WinXP Pro OS on my boot drive (C:\ driv
containing only OS and installed apps, approx 90% free space). Due t
an unexplained inability to boot from my XP CD (and a failed attempt t
use a set of 6 XP boot diskettes I downloaded), I was unable to do th
recommended Repair/in-place install of XP. So, figuring that I didn'
have any real data on my boot drive, I proceeded to re-install WinX
Pro the only way I knew how: I booted from my old Win2000 install CD
installed Win2000 and then ran the WinXP Pro CD from within Win2000 t
perform the upgrade. <bummer> I thought I would re-install XP and b
prompted to re-activate, but I could handle that. At least my dat
would be safe... As a precautionary measure to make sure I wouldn'
lose my data, before I began the Win2000 install I disconnected my dat
drive from its IDE and power cables - just to keep this drive out of th
picture entirely until I had my OS re-installed and working. I don'
know if this matters or not, but when I did the Win2000 install on m
C:\ drive, I formatted it (NTFS) and created a 70GB partition (leavin
the rest of the 120GB drive as unpartitioned space). At any rate, th
Win2000 install went fine and the subsequent WinXP install/upgrade wen
fine, too. I installed all of my mobo chipset drivers (LAN, sound chip
etc.) and was ready to connect my data drive.

Here's where things went South: After I connected my data driv
(containing approx. 70GB of treasured data) XP did not display thi
drive in My Computer. I went into the Disk Manager utility to see i
the drive showed up at all, and it was there, but it was labeled a
"Dynamic, Unreadable". WTF!?!

What I've tried/thought of so far: I have done several hours o
research and troubleshooting and have come up with a bunch of possibl
solutions to this problem. I have tried connecting the drive to
different PC (running Win2000) and it still shows up in Disk Manager a
"Dynamic, Unreadable"... so I am left to assume that I am dealing with
corrupt MBR (see http://tinyurl.com/6k5f8 ). I have run dmdiag /v an
verified that my data drive has a 0x42 system-id byte. I hav
considered using Diskprobe to manually change this byte in the MB
according to the MS KnowledgeBase instructions. I have thought abou
just using a boot disk and typing in a FDISK /MBR to reset my MBR (wha
will this do to my data?). I have even considered downloading and usin
either MBRtool or DiskPatch 2.0 from http://www.diydatarecovery.nl
(DiskPatch costs about $50).

Here's where I need help: Given that (1) I have not seen/fixed thi
problem before, and (2) I DO NOT want to lose my data, I am hesitant t
"pull the trigger" and pursue a fix until I am convinced that it wil
have the desired results (ability to read my drive with no loss o
data). I am almost certain that there is nothing mechanically wron
with the drive and I don't think I have done anything (yet) that coul
have erased any of my precious data. It's just a matter of reading th
data, making a back-up of all of it, and then doing whatever I have t
do to get my OS to see the drive.
What's the best solution?

Regards,
Ian
Larry said:
Hi Anders,

I have the EXACT same problem. <snip>
LT

:
-
Hi,

I tried it, but it didn't work. It still shows up as
unreadable.

<snip>
:
-
I have two hard drives in my computer. The first disk
contains XP and the software, the second contains
personal stuff. The second disk is installed using--
NTFS--
dynamic disk.
Last weekedend I formated the XP disk, and installed--
XP--
again. After installing, the second disk comes up
as "unreadable" dynamic disk.
Is there a way to make it readable? I haven't done
anything to it, so all the data should be there.


Regards
Anders
-
.
-
[/i]
[/QUOTE]
 
J

Joep

I have even considered downloading and using
either MBRtool or DiskPatch 2.0 from http://www.diydatarecovery.nl/
(DiskPatch costs about $50).

DiskPatch should be able to do this. Try the demo and see if the data
volume/partition is detected. If so buying the full version will probably
allow you to restore this partition as a basic partition. The DiskPatch
recovery process does not put yor data at risk; you can always undo whatever
repairs DiskPatch makes.

More details are here: http://www.diskpatch.com/data_recovery.htm
 
Joined
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The second time, you could install a XP home edition. However, the XP home edition can not support for dynamic disks, or the partition table is interrupted on the disk, so a unreadable dynamic disk is showed in disk management. A called Dynamic disk converter 3.0 (http://www.dynamic-disk.com/) can revert an invalid or unreadable dynamic disk back to basic disk, you can try.
 

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