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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Marcb on April 24, 2008, 02:47:32 PM

Title: Error 21
Post by: Marcb on April 24, 2008, 02:47:32 PM

Hi,

Trying to install a 1gb IDE Hd in a 2000 WB 2.04 using a Buddha board...
 Using HDtoolbox I can read paramaters but when I try to save changes I get an error 21...

Can someone tell me what that means?

thanks in advance

Title: Re: Error 21
Post by: leofoe on April 24, 2008, 03:44:46 PM

User Thomas said in an earlier thread on A.org about this error:

"Error 21 (not enough sectors found) means that you either try to read beyond the end of the disk (is it larger than 1.6gig ?) or the disk has a real physical read error (magnetical fault).

In the first case you should check and adjust the HDD size in HDtoolbox. In the latter case you should buy a new hdd and trash the old one. Before you do that your could try a full format or even a low-level format.

Bye,
Thomas"

Title: Re: Error 21
Post by: Piru on April 24, 2008, 03:47:50 PM

Quote

Before you do that your could try a full format

You can't format a partition before it has been set up.

Quote

or even a low-level format.

You can't low level format IDE HDD.


So these parts of the original post don't apply, at least.

Title: Re: Error 21
Post by: Tension on April 24, 2008, 04:21:44 PM

Error 21...  Ooooh, nasty!!!

Title: Re: Error 21
Post by: Thomas on April 24, 2008, 08:33:52 PM

Quote

You can't format a partition before it has been set up.

I am quite sure that the quote has been cut from the context. The other thread probably talked about a read error on an existing partition.

Quote

You can't low level format IDE HDD.

But you can let HDToolbox send the command to the drive. Different drives behave differently when receiving this command. I have had drives with read errors in cylinder 0 which could be partitioned after a LLF attempt. The command obviously cleared the internal bad block list of the drive allowing it to use replacement sectors for cylinder 0. (One could clearly hear the head move to the end of the disk and back when accessing the RDB). Of course the drive didn't become better by this. The read errors only reappeared at another place of the disk. I had to trash it anyway.

Quote

error 21

If you did everything right, error 21 usually means that the drive is dead. But if you are unsure whether you did everything right you can still search your mistake. For example having two masters or two slaves on the same IDE cable can cause read errors. Or a weak or overloaded power supply. Or a bad or improperly connected cable.

Bye,
Thomas

Title: Re: Error 21
Post by: Marcb on April 25, 2008, 08:25:28 AM

Thanks for your help guys,

I tried a LLF but it just caused a hang so I tried another HD I had laying around and Bingo! It worked...

Shame this drive is only 200 mb but at least I know the Buddha is ok...

Title: Re: Error 21
Post by: Framiga on April 25, 2008, 10:40:48 AM

Quote

Marcb wrote:
Thanks for your help guys,

I tried a LLF but it just caused a hang so I tried another HD I had laying around and Bingo! It worked...

Shame this drive is only 200 mb but at least I know the Buddha is ok...

i'm sure it did its job! rest it in peace! :-)

Title: Re: Error 21
Post by: Marcb on April 25, 2008, 11:13:50 AM

Quote

Framiga wrote:
i'm sure it did its job! rest it in peace! :-)

Manufacture date: 25/01/1996... I guess its been around the blocks a few times...
 :lol: