0
votes
1answer
14 views

Change GRUB2 boot device

I have a MacBook Pro, and I use rEFIned to dual-boot Ubuntu and Mac OS X. In case I ever messed anything up, I installed Ubuntu on an external hard drive. However, I messed up the setup so I installed ...
0
votes
1answer
153 views

Mac boot from Ubuntu installed on a USB drive

I have a USB drive with Ubuntu installed on it (on a Live USB, it actually has Ubuntu installed on it), and it works seamlessly when I try to boot my PC from it. When I try to boot my mac (Mac Book ...
1
vote
1answer
902 views

How to dual boot Mac OS X and Ubuntu without rEFIt

I want to install Ubuntu on my Mac but I don't want have to use rEFIt. Can I do that? Can I just hold the option key on startup and use that to pick what I startup with? And if so would I install ...
0
votes
0answers
127 views

Mounting Ubuntu to usb on Mac OSX Lion

I am having an issue involving a Lexar USB device. When I attempt to Execute step 8 8 Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m (replace /path/to/downloaded.img with the path ...
0
votes
1answer
357 views

Mac won't boot into OS X after update

I run an update today on my Mac and it updated GRUB. I select it to leave it and not update it however when I reboot, rEFIt didn't appear and went straight to GRUB. I can boot into ubuntu but not into ...
0
votes
2answers
533 views

Where to install Ubuntu bootloader on a Mac?

I'm trying to install Ubuntu on a Mac, but I can't get it to boot with default mac bootloader or rEFI. It shows up as "Windows" On the mac bootloader and shows up as "Linux" on rEFI. I'm not sure ...
0
votes
1answer
666 views

How can i safely remove extra GRUB installs?

I am using a Macbook Pro 6.2. I installed Ubuntu 12.04 and it was working fine. I Re-sized my partitions (to make more space for Linux) and of course messed up GRUB. This is fine. I corrected the ...
0
votes
1answer
673 views

Do I need to use rEFIt if I want to install ubuntu on a MacBook Pro?

I am considering getting the new MacBook Pro and dual-booting OS X and Ubuntu. All the help pages I found say I need to use rEFIt but is that really necessary? Can't I just use the default OS choose ...
1
vote
2answers
429 views

Ubuntu 12.04 running from an external hard drive freezes frequently

I have the late-2009 model of the iMac (with the latest version of Lion) and I use a rEFIt CD frequently to switch from OS X to Ubuntu and vice versa. Ubuntu 12.04 is installed on a partition of an ...
1
vote
3answers
1k views

Remove Grub Loader from Mac

I installed Ubuntu (Precise) on my Macbook Pro but now I'd like to go back to OSX but I can't boot off the OSX Snow Leopard DVD to do a reinstall. I have tried booting and holding down "c" or using ...
3
votes
1answer
15k views

How to install Ubuntu 12.04 on Mac OS X?

Could anyone provide a concise step by step instruction on how to install Ubuntu 12.04 on a Mac OS X Lion? I have read that Ubuntu corrupts the EFI file so I would like to hear from those who have ...
0
votes
1answer
360 views

Boot problem in dual-boot iMac

I know there are too many booting problem posts in geek forums, but none of them could help me so i decided to ask here. I have been using my iMac with Ubuntu 10.04 for almost 1 year. It was perfect ...
1
vote
0answers
128 views

How do I reinstall Ubuntu on a Mac? [closed]

I want to install Ubuntu again, after it stopped working on my Intel Mac. But I have rEFIt installed and no boot from disc option shows up after I burned the .iso onto a disc. What do I do?
1
vote
2answers
612 views

Installing on Snow Leopard?

Have Snow Leopard 10.6.5 on a working MacBook Pro. Have CD of Ubuntu 10.10 amd.dmg in the CD drive. Have rEFIt. Now what?
6
votes
3answers
2k views

How do I install Ubuntu on an iMac 27"?

I have a beautiful 27" iMac. I would like to run Ubuntu on it natively, dual-booting with OS X. I have rEFIt installed, and I can boot into the Ubuntu 10.10 CD, kind of. Here's what happens: I ...