Unmount of all volumes on disk# was successful In the next line, type 'diskutil unmountDisk /dev/disk#'. You'll see your primary hard drive (probably listed under /dev/disk0) and your Flash Drive, which will be listed as /dev/disk#, with # being any number that isn't zero. The best way to accomplish your goal is the following: Well, I was dealing with this problem, but after a little digging I found a be-all end-all solution for creating Windows/Linux bootable Flash Drives on the mac.ĭisk Utility, for whatever reason, is prohibited from writing Joliet (ISO 9660) onto MS-DOS FAT 32 Flash Drives, though it should definitely work.
***EDIT thinking about the virtual machine approach, you can convert the virtual machine to a physical machine and place its contents wherever? i just read about it, so obviously i haven't tinkered with the idea.
#Mac os iso to usb windows#
hell, i'm on the windows side now trying to find similar solutions to the file system crap so i can put my windows, os x, and linux installs all on one firewire drive (i've re-installed all of them 5 or 6 times in the last two days trying to get my system to triple-boot, and installing from disc takes sooo long each time, but that's a whole other story) i've always had to go to dirty dirty windows to make my linux discs, but mostly for lack of energy to go back to trying to figure out doing it on os x. Huge pain in the a- workaround, but it's all i've got. iso, then from the virtual system get unetbootin and burn your disk.
#Mac os iso to usb download#
if you don't have windows to boot into, you can download virtualbox for free, and make a virtual linux system from your. Personally, i boot into windows and use unetbootin to make linux discs. there is a program called macFUSE that can deal with extra format types - and i hate to be another a**hole to post without a solution, but i would try looking into using macFUSE to give OS X the ability to deal with those formats, then maybe you'll be able to partition your media to the appropriate file system to match the source image. it will be like iso 9886 or UDF, while i can only choose HFS+, FAT, etc.
i've noticed that whenever i get that error, if i click "info" for the disk image, it is of a format that i can't apply using disk utility. I'm 99% sure the error 254 indicates an incorrect drive format/partition type. Since Unetbootin came out, I pretty much avoid any other method if at all possible. I had to do this because I inadvertently completely jacked the Ubuntu installation on my Eee to the point that I could not recover, and I didn't happen to have a working bootable flash drive for it at that moment).
(FWIW, I know I've done this at least once - it's even possible to make a bootable USB of an Intel Linux distribution purely from a PPC Mac. If that's not a possibility, you can use OS X, and follow tutorials appropriate to your distribution, such as the ones at, but you'll have to find an alternative way to put a bootable MBR on it and syslinux it. Unetbootin is an automated tool that will take many different ISOs (it isn't guaranteed to work if you use it with an ISO that isn't on its approved list, though, so you might want to check the compatibility first) and makes bootable flash drives off them.īut there is no OS X version of it, AFAIK, so the USB must be created using unetbootin in a Windows or Linux environment. The core problem is that how an ISO is converted into bootable USB is not the same from one distribution to another. Using any other method to copy the ISO contents also doesn't work.īoth are true for any distribution of Linux. Using dd to write the ISO contents directly to the USB absolutely does not work.
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