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Cannot fdisk

By K-T ·
I found an 8gb hard drive with NT on it that I wanted to fdisk and format.I used fdisk to view the partition details - 2gb primary (fat16) and 6gb extended (unformatted). The extended partition had no logical drives defined. Yet when I went to delete it, I was unable to, and received a message stating that I could not delete an extended partition while it contained logical drives. Any help or thoughts on this would be appreciated. I don't think the type of operating system on the hard disk is relevant, I know somebody who encountered the same problem with a W98 disk.

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Cannot fdisk

by ARG CIO In reply to Cannot fdisk

Okay.. everyone has some good ideas here.. the best ones are..

1) probably formated with NTFS, BUT NTFS still show up on MS FDISK, as "Other"(as long as you use Win98 FDISK). My bet is HPFS, or similar (had this problem with several OS/2 machinesthat were converted to Windows95.)

2) best bet, go to hard drive manufacturers web site, and get a disk manager util to "clear the drive" (best becaue it takes care of virus' and usually checks & marks bad sectors) delpart is a good program, but leaves bad sectors, and virus' where they lay, but would probably take care of the problem. The Caldera FDisk /x idea is a good one, it will probably get rid of the logical drive, but again virus' stay intact if you don't clear it.

The low level format idea was good, but if you don't know what your doing, and use the "bios low level format" on an old PC, you'll kill the IDE drive!

The problem your "somebody" had was with a FAT32 partition using an Win95 FDISK. You can also try a Win98 FDISK, and see if it sees the logical drive.

But still fastest, most reliable is to go to manufacturers web site, and get a disk util. to clear it. If you can't find it. try finding a copy of WDClear (Western Digital Utility that works on most drives)!

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Cannot fdisk

by K-T In reply to Cannot fdisk

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Cannot fdisk

by guidos In reply to Cannot fdisk

If you're familiar with Ghost software, there's a utility that comes with it called GDISK...it works much better than FDISK because you can delete ALL partitions on the HDD at the same time with one command. Once that's done, you can do whatever you like, even create FAT32 partitions.

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Cannot fdisk

by K-T In reply to Cannot fdisk

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Cannot fdisk

by pdpjp In reply to Cannot fdisk

The partition is either NTFS or HPFS. Get a copy of delpart to remove it. Above all, DON'T DO A LOW LEVEL FORMAT! That is for extreme cases when all else fails. Doing a low level format can render the hard drive inoperable.

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Cannot fdisk

by K-T In reply to Cannot fdisk

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Cannot fdisk

by slackerfl In reply to Cannot fdisk

To fix this, you will want to delete all partitions and start fresh. Use the following debug script, boot to a dos prompt, type debug.
-a 100
????:0100 int 13
????:0102 <enter>
-rax
:0301
-rbx
:0200
-f 200 l 200 0
-rcx
:0001
-rdx
:0080
-p
-q
after you've finished this, reboot the system, the hdd is now clean of all information, run fdisk, setup the partitions accordingly, and then format the drive.

Hope This Helps!

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Cannot fdisk

by K-T In reply to Cannot fdisk

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by K-T In reply to Cannot fdisk

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