[all variants] Dual boot linux/OS X rEFIt troubles

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http://ubuntuforums.org – I recently downloaded and installed rEFIt and Ubuntu 12.04 on my macbook pro 6,2. I did this in the following order: 1. installed refit, rebooted to affirm it boots to refit. 2. downloaded Ubuntu (verified md5) and burned iso to DVD. 3. partitioned 60 GB of free space in disk utility 4. inserted DVD, rebooted, from refit boot screen booted to Ubuntu install DVD. 5. Selected "try Ubuntu", booted to ubunto, used gparted to create 4 GB of "swap" from unallocated space and the rest (~56GB) "ext4". apply changes 6. Started Install from desktop shortcut. 7. w (Hardware)