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I am trying to upgrade the kernel of Xubuntu 15.04 AMD64 live CD to the latest version available (4.1/4.0.6) so that I can try and install the same on hitherto unsupported hardware.

I am using the process outline here.

Here I am installing the Kernel .deb files from Ubuntu Mainline archive in the CHROOT environment and removing the stock kernel using dpkg and apt-get. But all my attempts have been unsuccessful so far.

The boot process fails after loading initramfs with - AuFS: unable to mount root file system.

What am I doing wrong?

  • why don't you simply download and install the packages as explained in wiki.ubuntu.com/Kernel/MainlineBuilds ? --- no need to remove old kernels; you can choose the right one in the boot options screen. – Rmano Jun 26 '15 at 7:59
  • Hello Ramos.. All that is about installing new kernels on an existing system but I dont have an existing ubunutu installation on the system I am trying to use. I need to install one first and I cant install it unless the install disc can boot on it. For it to boot - I need the install disc to run the latest kernel. Hence all this fuss! – Praveen Jun 26 '15 at 12:27
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I guess you will be happy by having a look at liveng.readthedocs.io and Open Secure-K OS on GitHub.

The full aim of the liveng project is to give the Community a set of best practices in order to turn a common Debian Linux live into a live(ng) operating system which features:

  • native encrypted persistence;
  • kernel update (on a live ISO 9660 filesystem);
  • UEFI, with UEFI Secure Boot compatibility, with a real efi partition.

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