Problem upgrading from Ubuntu 10.10 to 11.04 on Mac Pro no bootable device found

Posted by | Posted in Command-Line, OS X, Ubuntu | Posted on 14-11-2011

Recently, I had an issue upgrading my Mac Pro from Ubuntu 10.10 to 11.04. After the install and the initial reboot I received a “No Bootable device found”. This isn’t the first time that this has happened to me during a Mac Pro Ubuntu upgrade. Many tech boards had offered the reset your PRAM or reset your Open Firmware as the solution to re-detecting the ubuntu partition. All had failed. Resetting your PRAM and your Open firmware won’t tell the system that “X” partition is bootable. Ultimately it came down to re-blessing the ubuntu partition with in OS X.

I used a Mac OS X startup disk to gain access to a terminal session to run the bless command.

/usr/sbin/bless --device /dev/disk2s1 --setBoot --legacy

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