![]() 8.3 Working with the Contents of Disk Images from a Modern PC To a modern computer, Apple II and vintage Macintosh disk image files have no special meaning. ![]() If you're not sure if a disk image file is in Disk Copy 6.3 format, hdiutil can also tell you that: hdiutil imageinfo mydisk.img Disk Copy 6.3 disk images are most often encountered with Apple s own operating system disk images for System 7.5 and later. Step 2 strips off the entire 84-byte DC42 header, resulting in a finished raw disk image. It will report an error 'convert failed - corrupt image', but don t worry. However, there is a bug in hdiutil's DC42 implementation, and the 'size' bytes in the header are written in the wrong byte order. DC63 images can be converted to raw disk images from the command line on a modern OSX Macintosh: hdiutil convert mydc63disk.img -format DC42 -o mydc42disk.img dd ibs=1 skip=84 if=mydc42disk.img of=myrawdisk.dsk Step 1 uses hdiutil to convert the DC63 disk image into DC42 format. ![]() 9 8.2.2 Special Note for DiskCopy 6.3 Images Floppy Emu does not directly support the less common Disk Copy 6.3 format for Macintosh, because DC63 disk images have separate data and resource forks with no equivalent in the FAT32 filesystem of the SD card.
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