![]() Let's make it: hdiutil create -sectors number -type SPARSE -fs HFS+ -volname volumename -layout NONE imagelocation. Now you know how big our first image needs to be. du -s imagedirectory will return a number which is the number of 512 byte sectors in that directory. Our first step is to find out how big the disk image needs to be.sparseimage with no partition map, and then convert it to an NDIF. Ouch.Īnyway, the point of all this is that if you want to make a nice NDIF, you have to do it by hand. You can't convert an image with a partition map to a format that doesn't support the partition map. sparseimage the normal way, and then proceeds on to converting to an NDIF. Well, when you try to use it to image a folder to an NDIF image, Disk Copy still makes the. sparseimage with a partition map (CD I think) with your files and then convert that into the final image, unless your original image is a UDIF read/write (possibly a UDIF read only). Apparently Disk Copy's normal mode of operation is to create a. The main reason is that NDIF images don't support partition maps. This part is also where I get to explain to you all why you cannot simply use Disk Copy to create the image in one go, but have instead to create a special sparseimage first and then convert that to an NDIF. Keep in mind that the Terminal gives no visual as you type a password, but it does see you typing.) At the prompt, you can then enter your username and password. You can even log in in console mode if you like (at the login screen, select other, and type ">console" as the username and leave the password blank. Everything in this method is in the Terminal - everything. Just a quick note before we start, this section is not for people who are easily intimidated, scared, or otherwise destabilized by advanced ideas. If you find that Disk Copy's expert mode drives you bonkers, you can change things back by typing defaults delete expert-mode in the Terminal. sparseimage file, since you don't need it anymore. When Disk Copy finishes, you are pretty much done.As far as I can tell, it's not any faster in OS 9, so that must just be the way it is. ![]() Now you get to wait for a long time while disk copy makes your image.For the things I do, NDIF Compressed is the best setting, but feel free to experiment. Select the sparse disk image and convert it to one of the NDIF formats (all of them are OS 9 disk image formats). Back in Disk Copy, select the "Convert Image." option.If you accidentally made your image too small, I think sparse disk images are supposed to be resizable so you can try to do that if you like. Anyway, select all your files that should be on the disk image and copy them over to the disk image. What do you want to do?" The Ignore button seems to work well for me. On my computer, the system puts up an error saying something along the lines of "you have inserted a disk that Mac Os X cannot read. Disk Copy should create the image and mount it in the Finder for you.Tell Disk Copy to make it a Sparse Disk Image (.sparseimage) with no partition map. In Disk Copy, create a new image, which should be approximately 1% larger in size than your files (in order to make sure it's big enough).On the way there, check to see how big the files are that you want to put on the image are. All you have to do is open Mac OS X's Terminal (located in /Applications -> Utilities) and type in defaults write expert-mode 1 and hit return. After doing this once, you can skip this step. If you've never done this before, you get to do your one step in the Terminal now.Before you begin, as always, it's a good idea to read through the entire process. You only have to type one command in the Terminal, and that's only once. It's really easy, and you should have no trouble whatsoever with it as long as you follow the instructions. This part essentially walks you through the making your nice image. All this is done under OS 10.2 I sincerely hope that Apple has made the process work correctly in 10.3 or 10.4 (yet to be released) so that you can simply image a folder as an NDIF image. As is true with most things in OS X, there are two methods: GUI and CLI. At long last, I have now found a way to do it directly in Mac OS X. For a long time, the only way I found was to boot up in OS 9 and make the images there. img files, too! However, creating them is a different story. That way, if you have to use OS 9 to recover from a backup, you can do it. Of course, one of the things it'd be nice to do is to be able to create Mac OS 9 compatible disk images. Not everyone has upgraded their software to Mac OS X, so whether you are trying to be compatible with other people, or just taking care of your own computers, it's nice to be able to support OS 9. I know that I'm not the only one out there who uses OS 9 once in a while.
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