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libretro / dosbox-svn

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imgmount fails with "can't create drive from file" #41

Closed evbo closed 4 years ago

evbo commented 4 years ago

I have a windows 98se image running in dosbox-svn-daum on Windows 7 host (not in retroarch) as my prototype and I am now wondering if this same image could be mounted through retroarch using this dosbox-svn core?

When I try through retroarch using this core I run into the exact same issue as posted here: https://www.vogons.org/viewtopic.php?t=33667

However, if I try to work around it, I can get imgmount to succeed:

imgmount 2 C:\win98.img -size 512,63,16,4063 -t hdd -fs none

However, then if I run boot -L C I get:

Booting from drive C... Disk I/O Error Replace the disk and press any key

dosbox-svn-daum on the other hand boots fine with my original command below. Any idea how to make this work for dosbox-svn core in retroarch?: imgmount c C:\win98.img -size 512,63,16,4063 -t hdd -fs fat

evbo commented 4 years ago

I think I know why this happens. It appears to only be an issue mounting hdd images greater than 512 MB.

So now my question, if this is the case, is to figure out how to mount 2 GB for a win9x game.

realnc commented 4 years ago

If it doesn't work in stand-alone dosbox-svn then it also won't work in this core.

evbo commented 4 years ago

thank you, the issue was I was creating these image files not using dosbox. And the difference in number of heads and cylinders was causing an issue for windows apparently.