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| Author | Creating OS7 installation floppy on OSX? (Read 7401 times) | ||||||
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luisreg
1 MB  Posts: 1 
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on: December 20, 2012, 06:50
I'm on OSX Lion with a working Floppy USB unit and brand new 3 1/2 disks, trying to install OS 7.0.1 on a Macintosh Classic with a nre drive (no installed OS currently). I ran the following command on terminal: dd if=~/OS7/os-6-1.img of=/dev/disk1 bs=84 skip=1 It ends succesfully, but I encounter the following problems: 1) If I try to re-mount on Disk Utility, it returns an error message saying it cannot be mounted. 2) If I eject it after the terminal command, it says I have to initialize it, because it's not formatted (??) 3) If I start my Macintosh Classic with it, it ejects it and doesn't recognize it as an installation disk. Any ideas? Thanks! Luis |
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wove
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1024 MB Posts: 1363
Reply #1 on: December 20, 2012, 14:54
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OS X use of dd is slightly different from the dd implementation of GNU Linux. diskutil list *gives you a list of your devices* Once you have the number for your device you run diskutil unmountDisk /dev/diskN *diskN is the floppy device from the above list* sudo dd if=~/path/to/image of=/dev/rdiskN bs=84 skip=1 *rdiskN seems to work better in OS X* Finish the operation with diskutil eject /dev/diskN *this will ensure that all data is written and nothing is lingering in the cache* bill
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