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Having mouse driver load prior to using boot disk

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First post, by BlueSox14

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Hi all,

Within Dosbox (via DFend Reloaded), I've been able to load a number of floppy disks (base Flight Simulator disk, and multiple associated scenery disks). After booting into the base FS disk, I'm able to swap disks using CTRL+F4. All working great.

However, I think what is happening is that because it's a boot disk, it doesn't allow the mouse driver to load. As a result, I don't get a cursor within the game.

The manual advises to boot into MS-DOS in order to load the mouse driver, and then to insert the FS disk, and execute fs.com.

While I can do this (by imgmounting the base FS disk to drive A), of course, I'm unable to load and access the scenery disks.

Does anyone have any alternative methods I might try within Dosbox, or am I just not gonna be able to make this work where I can swap disks and also have a mouse cursor in game?

I appreciate that various forks of Dosbox support multiple loading of floppies (is this the case even when they're boot disks? I'm having trouble with this in DosBox-X...) I'm primarily interested in whether DosBox can do this or not.

Thanks everyone!

Trent

Reply 1 of 5, by jmarsh

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You can pass multiple filenames to imgmount to mount multiple floppies then use ctrl-f4 to swap between them.

Reply 2 of 5, by BlueSox14

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Thanks jmarsh,

I've tried this: IMGMOUNT A "..\..\VirtualHD\Microsoft Flight Simulator 2.14\FS214.IMG" "..\..\VirtualHD\Microsoft Flight Simulator 2.14\SD-9.IMG" -t floppy

And what I get is this: Using multiple files is only supported for cue/iso images.

What am I doing wrong?

Trent

file.php?mode=view&id=233593

Reply 3 of 5, by NeoG_

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I believe in vanilla 0.74-X only multiple boot floppies is supported, not via imgmount. Using imgmount you have to overwrite the image file you mounted on the host computer and then ctrl+f4 in dosbox to refresh the contents. For multiple floppy images managed via imgmount inside dosbox you will need to use SVN builds or another fork. Alternatively, use workarounds like combining image files, or customising a disk image with your required mouse driver.

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Reply 4 of 5, by jmarsh

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BlueSox14 wrote on 2025-12-30, 23:30:
Thanks jmarsh, […]
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Thanks jmarsh,

I've tried this: IMGMOUNT A "..\..\VirtualHD\Microsoft Flight Simulator 2.14\FS214.IMG" "..\..\VirtualHD\Microsoft Flight Simulator 2.14\SD-9.IMG" -t floppy

And what I get is this: Using multiple files is only supported for cue/iso images.

What am I doing wrong?

You're using an ancient version of DOSBox, find a newer build based on SVN (e.g. https://www.emucr.com/2025/08/dosbox-svn-r4494.html)

Reply 5 of 5, by BlueSox14

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Thanks for those replies. Good clarification for me.

Trent

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