Others have reported no such menu item and have used Default, but that doesn't boot for me. You only have a few seconds to choose but my menu included an option to "try Ubuntu without installing" (3rd item down) and I chose that one. You should be greeted by a Unetbootin menu with Default as the top option. If no rEFInd choose the one that wasn't there before (can't remember as I use rEFInd). If you have rEFInd installed you'll see a nice penguin at the end - choose that Reboot leaving your USB flash drive inserted and if you don't have rEFInd installed hold the Option (ALT) key after the chime until the appropriate menu choices appear. It will finish and report that the USB will not be bootable on a Mac. It could take about 20 minutes or so, maybe a touch more but leave it anyway. It will give the usual guff about what it's doing and may even appear to hang for a while, even give the spinning coloured wheel - just leave it running. Ok now download and install Unetbootin for Macs and use it in the normal way to make the Live USB choosing if you wish to make the persistence file by entering a size in the appropriate field. If it does just type y and enter, then reboot. It may report that the changes won't be made unless you reboot. If it gives an error about no mbr.bin then you've cd'd to the wrong part of syslinux folder - possibly! If this gives an error about not getting access run the unmount command again for your USB (above) iso file - I had Ubuntu 13-04 amd64 for mac - **** if you want EFI boot on a Mac use a non-mac version of the Ubuntu isoĬode: sudo dd conv=notrunc bs=440 count=1 if=mbr.bin of=/dev/diskX - again change the X to your drive's numberĪfter a second or two it should report bytes written count which should be 440. If Syslinux is not in the MBR there's nothing to point to where to go to boot anything.Īnyway, I have just made a 2GB Ubuntu Live USB with persistence following the method below and not only does it boot on a Mac but the persistence actually works!Ī Mac which is capable of booting from a USB flash driveĪ USB stick (2GB upwards in size if you want persistence)Īn Ubuntu. It also seems to misread or misinterpret the boot flag or the active partition in some way. This could possibly be a licensing kind of thing. It seems I was.Īpparently Unetbootin fails to write Syslinux to the MBR of the flash drive (or not correctly, if at all). It seemed I was missing a step or something. Most of the information I needed was already available (thanks to Christopher Friedt and others) but it just wouldn't quite work for me. On trying to boot it it would always give either a "Boot error" message or "this is not a bootable disc." error. I would make the USB with Unetbootin but at the end of the process it would report that this USB would not boot on a Mac. I can obviously have things like Bookmarks for important sites retained too. Persistence is worthwhile having, at least in my case as my wifi does not work "out of the box" so without persistence any driver and firmware that I install once booted to the live desktop would become lost once the system is rebooted. I have been spending a lot of time recently trying to make an Ubuntu Live USB with persistence that will boot on a Mac. Please see the addendum at the bottom of this post if you're having problems not achieving persistence with a recent version of Ubuntu.
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