réjean Posted March 17, 2012 Share Posted March 17, 2012 (edited) Hi all! I downloaded the latest Ubuntu (Development Release: Ubuntu 12.04 Beta 1) thinking about installing it on my machine. Before burning it ( the shasum is good ) I thought I would look at it in Vbox in PCLinuxOS Zen. At first I gave it only 512 Mb of RAM (default) but I get the following message; This kernel requires the following features not present on the CPU;pae. Unable to boot - Please use a kernel appropriate for your CPU. so I went on Wikipedia and found the following; In computing, Physical Address Extension (PAE) is a feature to allow (32-bit) x86 processors to access a physical address space (including random access memory and memory mapped devices) larger than 4 gigabytes. Then I gave the Vbox machine 1 Gb of RAM and I got the same message. So instead of installing the Vbox machine on my big 500 GB partition (sdb10) which is ntfs I put it in the /home/rejean/.VirtualBox/Machines folder with the same result. Does it mean that; 1. I cannot run Ubuntu in Vbox or 2. there is no point in burning the .iso image and trying to install it on my machine? My motherboard is a ASRock 4CoreDual-SATA2 btw. Edited March 17, 2012 by réjean Quote Link to comment Share on other sites More sharing options...
amenditman Posted March 17, 2012 Share Posted March 17, 2012 What version of Ubuntu did you download, x86, x86_64, AMD64, etc.?What cpu does your computer have in it, Intel ? AMD ? and specifically which model?As far as the virtual machine, in VBox, did you tell it what version of Ubuntu you were going to run when you set it up? I think that you have to tell it the correct architecture (cpu, kernel) during the first step of the set up. Quote Link to comment Share on other sites More sharing options...
réjean Posted March 17, 2012 Author Share Posted March 17, 2012 I downloaded the 'ubuntu-12.04-beta1-desktop-i386.iso' version. According to the motherboard book the CPU would be LGA 775 for Intel Core 2 Extreme but in the Control Centre I see; Intel® Pentium® 4 CPU 3.00GHz. I may have found the solution thanks to you; Yep! It seems that it will work. I'll let you know. I have to go outside and take advantage of a sunny afternoon to do some garden preparation. Thanks! Quote Link to comment Share on other sites More sharing options...
réjean Posted March 17, 2012 Author Share Posted March 17, 2012 (edited) I never had to make such a change in Vbox before but 'Enabling the PAE/NX' worked. Thanks Bob! Edited March 17, 2012 by réjean Quote Link to comment Share on other sites More sharing options...
securitybreach Posted March 17, 2012 Share Posted March 17, 2012 I never had to make such a change in Vbox before but 'Enabling the PAE/NX' worked. Thanks Bob! Quote Link to comment Share on other sites More sharing options...
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