[SOLVED] RPCEmu and Hard Disc images

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Soruk
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[SOLVED] RPCEmu and Hard Disc images

Post by Soruk » Mon Aug 20, 2018 12:31 pm

Hi,

I have a hard disc image extracted from a real Risc PC. It's 20GB in size, and after managing to extract it from the hard drive (after sticking it in a freezer in a ziplock bag!) it works perfectly dd'ed to a SD card on an IDE to SD adapter board - indeed, the Risc PC is working faster than ever.

However, I just cannot get the image of the disc to be recognised by RPCEmu with RISC OS 3.71. To try to work out what was going on I created a blank disc of about the same size and formatted it with !HForm, and could see what looks like the beginning of data starting at &0E00 byte offset (sector 7) from the start of the disc, where the same data was at &0C00 on the original disc (sector 6) - and inserting a dummy sector at the start of (a copy of) the disc image hasn't helped. The test image I created with a CHS geometry of 30761:16:63 but I have no idea what the layout geometry of the image from the real disc is - even if that matters.

Does anyone have any pointers that would help me make it work?

Edit: I should be clearer. I'm running RPCEmu 0.8.15 on Linux (32-bit).
Last edited by Soruk on Mon Aug 20, 2018 1:06 pm, edited 2 times in total.

Phlamethrower
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Re: RPCEmu and Hard Disc images

Post by Phlamethrower » Mon Aug 20, 2018 12:42 pm

I don't understand the underlying issue, all I know is that real hard disc images need tweaking a bit to work in RPCEmu.

https://www.iconbar.com/forums/viewthre ... adid=12152

Soruk
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Location: Basingstoke, Hampshire
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Re: [SOLVED] RPCEmu and Hard Disc images

Post by Soruk » Mon Aug 20, 2018 1:08 pm

Thank you - that little disc patcher did the trick! =D> =D> =D>

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geraldholdsworth
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Re: [SOLVED] RPCEmu and Hard Disc images

Post by geraldholdsworth » Mon Aug 20, 2018 7:47 pm

Gerald Holdsworth
Repton Resource Page
www.reptonresourcepage.co.uk

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