Date   : Tue, 31 Jan 2006 10:10:57 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: BBC Master 512 system discs

David Harper wrote:
> "Hereward Hall" <hab_hall@...> wrote:
> .
>>    I was wondering whether anyone could help me ascertain 3.5" disc 
>> copies
>> of the BBC Master 512 system discs. Already, I have used Omniflop and
>> thought I had created generic copies, but I seem to have failed. When 
>> I put
>> in the boot disc in 512k mode(80186) nothing happens at all and I am 
>> later
>> presented with a disc error message.
> 
> I am not quite sure what you mean by "nothing happens at all". You 
> should at least get the opening screen flash starting "Acorn TUBE 80186 
> 512K" and the disk should spin up. If not, then you have something other 
> than a disk fault.
> 
> The 512's boot disk is a hybrid ADFS / DOS format disk. The 512's boot 
> ROM uses ADFS to get started

That's interesting - do you need ADFS present to even get the startup TUBE 
message?

cheers

Jules