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| Author | creating a DOS partition under 7.6? (Read 18500 times) | ||||||||||||||||||||||||||||||||||||||||||||||
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p-amadeus
64 MB  Posts: 89  
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on: August 22, 2007, 06:42
So I have a Performa 640CD with the DOS Compatibility card. I was wondering if there's a way to create an actual DOS partition on my Mac HD to use for the DOS compatibility mode rather than just a disk image file? I have a ~9.5gb HD in my Performa at the moment (split into 4 ~2gb partitions and one ~1.5gb partition so OS 7 can understand them) so I'd like to use the 1.5gb at the end of my disk for the PC. Does anyone know of a program that will run on my 640 and do this? |
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wove
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1024 MB Posts: 1363
Reply #1 on: August 22, 2007, 07:51
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I am not sure it is possible to setup a seperate partition on the Mac hard drive that can be used in that manner. To create a Mac partition formatted for DOS, you would need to create a partion on the Mac using Disk Setup. You would create an HFS partion for Mac use and a second partition that you would leave as unformatted. There is a setting for SCSI device compatibility in the control panel for the DOS card and this would be used to have the DOS card look at the unformatted partition on the Mac. Once you have booted to DOS from a floppy or floppy image, you can use DOS tools to format the unformatted partition. As I first noted I am not sure the DOS card is designed to work from a DOS partition on the main Mac hard drive. However you can use the same method to setup a second hard drive in the Mac to be a straight forward DOS formatted and used hard drive. The method of selecting SCSI devices for use with DOS is the same for any external or internal drive. You can for instance have it set so that DOS would work with DOS formatted Zip Disks. bill
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p-amadeus
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64 MB Posts: 89
Reply #2 on: August 22, 2007, 16:29
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Well in the PC Setup control panel when you look for a partition it looks for an already set up DOS partition, I don't believe it has the capability to format unformatted disk space into a DOS partition, hence why I'm asking this.
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wove
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1024 MB Posts: 1363
Reply #3 on: August 22, 2007, 18:51
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This FAQ might answer some of your questions. bill
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p-amadeus
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64 MB Posts: 89
Reply #4 on: August 24, 2007, 00:04
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Thanks wove, guess I'll just stick with the disk file. Now just to get DOS installed...
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_dave
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32 MB Posts: 60
Reply #5 on: August 24, 2007, 20:51
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LaCie's SilverLining (5.8.3) can do this for you.
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p-amadeus
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64 MB Posts: 89
Reply #6 on: August 25, 2007, 22:06
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ok so my original DOS disks are buried in a box 400 miles away in my parents basement, so I found a great site with PC abandomware and got some DOS disk images. problem is putting them onto floppies...disk utility won't write disk images to floppies inserted in my USB SuperDisk drive! When i go to restore it asks me to authenticate and I do then it's about to start then I get an error message saying that I need to authenticate....wtf? i've treid it repeatedly and it just keeps doing it over and over...so my next attempt was to try Virtual PC but it won't use my SuperDisk drive as the floppy drive and when I enable USB to try and directly use it though VPC the drive "isn't working properly" in device manager....grrr any suggestions?
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wove
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1024 MB Posts: 1363
Reply #7 on: August 25, 2007, 23:36
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I have used emulators to some extent, but most of the time I worked with Nubus and PCI DOS cards. I was never that happy with Apple's cards and mostly used OrangeMicro's DOS cards. So I am not that familiar with Apple's cards and it has been a very long time since I have used a 630DOS machine. Does DiskCopy see the images you have as valid disk images and if so can you simply assign the images you downloaded to the drives with PC Setup? BlueLabel Emulator was availble as a trial download and included was a utility to work with the various formats of DOS images and that might prove useful for your purpose. bill
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p-amadeus
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64 MB Posts: 89
Reply #8 on: August 26, 2007, 09:32
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they are ndif disk images however no os x utility can both read them and also write em to a floppy
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wove
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1024 MB Posts: 1363
Reply #9 on: August 27, 2007, 01:57
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The DOS cards can use floppy images as drive A or B. So if you can get the images to mount you can access them from within DOS without the need to create floppy disks. You should be able to simply assign an image to a drive. If you do need to create actual floppies, perhaps you could burn the files to a CD, take the CD to a public access computer running some variant of Windows where you could turn them into actual floppies. bill
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p-amadeus
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64 MB Posts: 89
Reply #10 on: August 30, 2007, 00:37
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Well Disk Copy won't mount the images on the Performa, Disk Utility won't mount them under OS X on my G5, they only way I've actually been able to mount them is by using the "Mount It" command in my Finder contextual menu's on my G5 (it's a function of Toast 8, I can mount them from within Toast 8 as well) or by using a small DOS command line utility that was DL'ed with the images under VPC 7 (and then of course they only mount in VPC...grr) I'm gonna see if my girlfriend will let me use her windoze laptop...
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_dave
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32 MB Posts: 60
Reply #11 on: August 30, 2007, 08:17
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LaCie's Silverlining can format a seperate partition for dos or unix or a/ux. yes, on the same drive having an hfs or hfs+ partition. this was one of the first heavy duty utilities to offer this to people once running a/ux. i still have a copy of Apple's first unix shell on my 7.1 cd. i would highly recommend Silverling for any drive in a Mac and you might also look into CharisMac Engineering's Anubis Utilities. both great formatters/test suites that offer powerful password boot block writes. Apple adopted SilverLining's protection for Multiple Users.
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