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Booting SCO from one floppy and cd-rom

Posted on 1998-09-28
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How do you load SCO OpenServer with an IDE floppy(boot disk) and CD-ROM(root disk)?
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Question by:lordnightmare
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by:lordnightmare
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SCO themselves say they can't figure it out, yet they have there installation done this exact same way.
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MichaelKrastev earned 200 total points
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Not only SCO, most modern UNIX OS do the installation this way.

1) The floppy will load (among other important steps) limited (in functionality) UNIX kernel and the necessary drivers to access the installation media -- SCSI, IDE cd ...

2) Load ram disk device and construct filesystem, mount it (I am not sure they are doing this with "conventional" interfaces or by hacking kernel structures directly) and then attach the installation media to this virtual filesystem.

3) Start the installation procedure, by running programs from the attached installation media.

Also, pay attention what CD you intend to use -- installation media or mirror of complete filesystem as you have it after normal boot.

The detailed explanation will make a book, I do not pretend I know everything to make it work, but in a nutshell you will write kernel procedures, compile custom kernel, and may have to write your own bootstrap function.

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