Hello,<br />I have a Macbook 5,2, on which I'm triple booting OS X - Linux - Windows, using bootcamp and rEFIt.<br /><br />I had a variation of Ubuntu 10.04 called Uber Student as the linux installation.<br />I installed Ubuntu 11.04 AMD64 instead, by choosing the EFI boot option.<br /><br />Now this gave me some problems. When I shot down, the Macbook gives me a troubling long beep sound.<br /><br />When I start up, I'm still able to boot up into rEFIt and Grub2, but there is a big delay with the screen being black for about 30 seconds and the little white light in the left corner of the Macbook is blinking feverishly. <br />What is going on here? What's up with the scary beep sound and the long boot up delay?<br />Secondly, when I want to do an update of the Ubuntu system, the update manager asks me to do a partial upgrade, which includes removing the grub-EFI, resulting in a system that won't boot...<br />Any ideas what the problem can be?<br />Thanks, Kasper
