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DOS can't see hard drive after form

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Name: RLP
Date: February 11, 2005 at 10:45:52 Pacific
OS: windows XP Pro
CPU/Ram: P4/512 DDR
Comment:

Hi,

I have a friend who wanted to wipe the hard drive on her old computer so she could reinstall win 98se and give the computer to a relative. I think I may have screwed up. I used the format command from a DOS floppy, and now DOS cannot even see the drive. When I try to access it it says something like "drive not detected." I think I can still see the drive in the BIOS. I guess I should have used fdisk? Is there a way to get DOS to see the drive?

Roberta



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Response Number 1
Name: jboy
Date: February 11, 2005 at 11:01:03 Pacific
Reply:

It's better if you can relate the actual error message and not 'something like' the message.

"I used the format command from a DOS floppy"

So far so good - what version of DOS? Are you using the same bootdisk when you receive the error message? Is the message coming from DOS or from the BIOS? Were there any error messages displayed during the format?

Is the hard drive recognized in the BIOS?

Run fdisk and choose option (4) to report on the drive status.

" I guess I should have used fdisk?"

Well... not so much. If the drive was previously partitioned as FAT32, likely no need to do it again - format should have been sufficent to wipe the drive & reinstall

I'm not insensitive, I just don't care.


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Response Number 2
Name: RLP
Date: February 11, 2005 at 12:29:08 Pacific
Reply:

Thank you for your reply. Sorry for being so vague. It's DOS 6.22. It's on a floppy. I am using the same bootdisk when I receive the error message as I did for the format. I assume the message comes from DOS since I am at the DOS prompt when it happens.

No errors were displayed during the format.

I believe it sees the hard drive in the BIOS. When I go the the IDE-related menu in the BIOS setup it lists the drive. It also gives booting from the hard drive as a boot option in the BIOS. But I don't have that much experience with BIOS setup.

I tried fdisk after the drive detection problem and was confused about whether it was working. Do I need to tell fdisk which drive and if so, how? Because after not being able to see the drive in DOS I tried using fdisk and selected "create a new partition". But I think I may have accidentally done an fdisk on my floppy (which I had stupidly not write-protected) instead of on the hard drive. (That happened after the other problem so it is not the cause of DOS not seeing the drive.)

>> If the drive was previously partitioned >>as FAT32, likely no need to do it again - >>format should have been sufficent to wipe >>the drive & reinstall

Not sure I understand the functionality of format vs fdisk, then. Does format erase the drive but still leave the partitioning done previously? I guess I thought format completely blanks the disk.

Thanks again.


Roberta


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Response Number 3
Name: mutantpineapple
Date: February 11, 2005 at 14:11:03 Pacific
Reply:

someone correct me if im wrong, but i didnt think dos 6.22 could access fat32 drives? i know mine cant... im surprised you even got it to format, assuming it did... also, i dont think you CAN fdisk a floppy, it only works for hard drives.
try a win98se boot disk( i can give you a download link for one if you cant get hold of one yourself)and see if you can access the drive using that


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Response Number 4
Name: mutantpineapple
Date: February 11, 2005 at 14:13:48 Pacific
Reply:

btw im a dos newbie, i was 7 when windows 95 came out, so you can safely ignore everything i say and get better advice off someone else :)


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Response Number 5
Name: jboy
Date: February 11, 2005 at 15:07:40 Pacific
Reply:

Pineapple, you're doing fine

Ok - right, you really shouldn't use a 622 disk on a relatively modern hard drive, as that version of DOS can't handle FAT32, and is limited to FAT16 (approx 2Gb max) partitions or drives.

Start over using a bootdisk for Win98 - probably only have to reformat, although, to be sure, I've never actually done what you have.

Fdisk is the DOS partitioning tool, and normally only needs to be run once to prepare a drive for formatting and eventual use. Sure, removing partitions with fdisk will remove all data along with the partition - as mentioned, formatting is usually all you'd need.

You can run fdisk non destructively to view partition info & drive status - if there is only one physical hard disk there is no need to do any further selection.

If you don't have a 98 bootdisk, download one of the files from bootdisk.com and run that to create the actual bootdisk.

If you experience further problems, post back

I'm not insensitive, I just don't care.


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Response Number 6
Name: RLP
Date: February 11, 2005 at 21:39:18 Pacific
Reply:

Thank you so much jboy and mutantpineapple. I will try the win98se boot.

One last question (I hope!): I have the win98se disk and the computer's BIOS is able to see the CD drive without my installing a driver. Is it possible I could just install the win 98se OS from the CD? Or would I still need to fdisk the HD from the boot disk first?

Roberta


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Response Number 7
Name: jboy
Date: February 11, 2005 at 22:17:48 Pacific
Reply:

Well, in the first place, it may not even be necessary to perform partitioning with fdisk - you can determine the status of the existing partition by using the Win98 version of fdisk, option 4 - if it shows the drive's full capacity & as FAT32 (likely) then just format.

If your CD is bootable, then you can boot from it - not all were. You'd want to set the CD drive as the first bootable device, or, at least, before the hard drive in the boot order.

Otherwise - Win98 bootdisks, and those from bootdisk.com have CD support.

I'm not insensitive, I just don't care.


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Response Number 8
Name: Mechanix2Go
Date: February 11, 2005 at 22:55:24 Pacific
Reply:

fdisk /status

Will show all drives.

[Well... maybe not. How many have got got?]

M2


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Response Number 9
Name: jboy
Date: February 11, 2005 at 23:20:04 Pacific
Reply:

More info is imparted if you use the 'display partition information' option from within fdisk, which defaults to the primary master if there's more than one physical drive.

Using the status switch gives you more of a summary.

I'm not insensitive, I just don't care.


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Response Number 10
Name: Mechanix2Go
Date: February 12, 2005 at 00:11:18 Pacific
Reply:

jboy,

Absolutely right as usual.

I think the fdisk /status is better for the novice if only because the interface is such a klunker.

M2


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Response Number 11
Name: jboy
Date: February 12, 2005 at 00:36:46 Pacific
Reply:

Be that as it may, the reason for using option (4) in this case is to determine the drive's System, which is not displayed by the /status switch. It's unclear (to me anyways) just what would result by formatting a FAT32 drive with DOS6.

It may well be necessary - or at least simpler - to completely start over using fdisk.

I suspect this was a bit of an ambitious undertaking for Roberta - perhaps a rough outline would be helpful too

I'm not insensitive, I just don't care.


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Response Number 12
Name: RLP
Date: February 12, 2005 at 07:13:12 Pacific
Reply:

jboy, thank you for the excellent link. I look forward to using it!

The computer only has one hard drive. I think I should be okay now with all this great info. Thank you to everyone.

Roberta


0

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