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[ubuntu] Building Ubuntu sources under VirtualBox

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http://ubuntuforums.org – Hi, I need to buid and run Ubuntu kernel under VirtualBox from the sources you can get from kernel.org. I'm a newby in the process of such a task. What I've done so far is:I have already a Ubuntu image running on my VirtualBox (my host OS is Windows 7). I downloaded the Ubuntu kernel sources from kernel.org (v3.5.2). Under /usr/src/linux3.5.2/ "make menuconfig" "make bzImage" "cp arch/x86/boot/bzImage /boot/vmlinuz" "sudo reboot"Then it restarts and I get the following error when booting: EXT3-fs (sda1): error: couldn't mount because of unsupported o (Hardware)