Darren ha escrito:
I'll save you from a pile of links that say rawrite (dd) works with mac disk image files as I've tried and failed to get this to work on both nix and doze for vintage or compact macs. ymmv ;)
It depends on what you understand a "Mac disk image file" is.
A mac Disk image as you'd find anywhere on the net, now I'd say diskcopy but its not completely correct as there is more than the 1 format.
dd, RawWrite, RawWriteWin and simmilar utilities do copy the raw data from the file to de disk (hence the name of "RawWrite"), without converting it in any way. Thus, they only can work with uncompressed disk images (with a size of *exactly* 1,440 Kb). Of course, that kind of images can contain a Macintosh disk without problem. I say that because I do have been able to generate working Macintosh boot disks with RawWriteWin without ptoblem, and as I said before, RawWriteWin works exactly the very same way as *nix's dd.
If you read my post you'd find that I know exactly how winrawrite, rawrite, winimage, dd and a few others work, dd not being exactly the same as the rest.
dd if=imagefile.image of=/dev/fd0 bs=84 skip=1 you understand why the switches are in this line? Possibily a way to get dd to work on the emac if betaX can understand how to use the usb floppy properly, I guess the user would need root access unless the drive was setup for writing to for any user. A nix user would know this.
On the other hand, if you have a DiskCopy disk image, or an image in another compressed format, you will not be able to write it with these utilities. If you want to write a DiskCopy image, you must first convert it to the uncompressed, headerless format dd and the other programs need. Take into account that most Macintosh disk images are in DiskCopy compressed format.
Here's one of the links I found useless YMMV
http://macfaq.org/software/macos.shtml#Q1.1.6 frankly this page is obsolete, rawrite, yuck.
As a rule of thumb, an image of exactly 1,440 Kb is a headerless, uncompressed raw image; an image of less than 1,440 Kb (ussually less than a Mb) is a DiskCopy image (or sometimes an stuffed raw image); and an image slightly over 1,440 Kb is a uncompressed image with any sort of header (most times you can get rid of it by copying the last 1,440 Kb of the image to a fresh file).
Covered in the link above. hinted at in the paragraph above that.
Well here's the thing for the last time.
To make a mac boot disk on a pc you only require a kind sole with a mac and another computer of any other platform that has a floppy. Pc's are good for this as the floppy is not read upon insertion like say a Mac - so you make the boot disk on the mac, transfer the floppy to the pc and fire up winrawrite (eg) which images the contents, not caring whats on them. Then the image is emailed to another pc where the image is decompressed to a floppy which will boot the mac it was made for. Dead simple. You could do this at the local internet cafe or school/work.
l8r
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