22 May 2015, 23:47 | #1 |
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Problem with diskspare disk image
I've been trying to get WinUAE to work with diskspare-type disk image files. Using diskspare.device with an extended ADF (2104892 bytes long, UAE-1ADF signature) seems to work fine. Or at least, the Format command seems to work OK.
However something seems to go wrong when using a plain disk image file. I created a file 1007616 bytes long (= 82*2*12*512), which WinUAE should detect as an 82-track DiskSpare format image from its size. Inserting that in drive 0 then doing Format DRIVE DS0: NAME blah NOICONS FFS seems to work initially: the Formatting/Verifying text appears up to track 81. But at the end when it says Initializing disk... there is a delay before an error message Format Failure: not a valid DOS disk. And looking at the disk image file in a hex editor, its contents are unchanged (all zero bytes). |
23 May 2015, 00:04 | #2 |
R.I.P Smudge 18-08-16
Join Date: Aug 2005
Location: Leicester/UK
Age: 66
Posts: 3,968
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Diskspare images made on a real Amiga can't be formatted in WinUAE. You have to create a custom blank (2mb) to format them.
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23 May 2015, 09:28 | #3 |
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,519
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Diskspare support is read-only.
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23 May 2015, 09:29 | #4 |
CaptainM68K-SPS France
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indeed ! you need to create a custom disk under winuae, making yourself your own extended adf container file is a bad idea
EDIT : @Toni : why is it read-only Toni ? Is there any problem with diskspare ? |
23 May 2015, 09:44 | #5 |
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,519
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I think you misunderstood.
"Direct" support as in mounting adf of exact size of diskspare disk after decoding it is read-only. Nothing to do with extended adf. (which of course works read/write). Some diskspare disks were archived this way -> can easily mount in emulation. |
23 May 2015, 17:07 | #6 |
CaptainM68K-SPS France
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Thanks for this explanation
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