Hi there.
I wonder what's so special about installation disk that iMac recognizes it at boot time even though installation is on MBR partition table?
But why after installation I cannot select my external USB disk as boot choice? Note, this is different external USB disk that one used for installation.
In other words, I want to install Ubuntu on external USB disk and be able to select it as boot choice after installation.
Details:
Hardware - Intel iMac9,1 (Early 2009 Core 2 Duo).
Distro - Ubuntu Natty 64-bit
Boot disk created on USB flash from 64-bit ISO with Startup Disk Creator.
iMac recognizes installation on USB flash instantly at boot, offers "EFI Boot" entry if Option key is pressed.
After Ubuntu is installed on external USB disk, it is NOT recognized as bootable, no matter if MBR or GUID (GPT) partition table was chosen. Tried both.
Right now I boot Ubuntu on iMac through rEFIt boot CD or modified grub.cfg on installation flash USB.
The question - how could I possibly get the same behaviour as with installation disk so that it is recognized 'at once'?
Thanks for ideas if any.
Ivars
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