Kaldi Toolkit Installation Error on Ubuntu 16.04

Kaldi toolkit Installation Error on Ubuntu 16.04

I solved it using g++-5. Ubuntu 16.04 by default uses g++-5 for pre-installed packages and when I try to compile Kaldi with g++-4.9 and link with Ubuntu packages that used g++-5, linker caused undefined references. I was facing similar issue with other libraries as well

Installation steps for xenomai 3 on Ubuntu 16.04

Notes on Installing the Cobalt core

1) Download Ubuntu 16.04.1 (v4.4 kernel)
from: http://old-releases.ubuntu.com/releases/16.04.1/

Install on USB drive using: Universal USB Installer

2) Download: linux-4.4.43.tar.gz

from: https://www.kernel.org/pub/linux/kernel/v4.x/

3) Download: xenomai-3.0.3.tar.bz2

from: https://xenomai.org/downloads/xenomai/stable/latest/

Unzip to /usr/src

4) Download: ipipe-core-4.4.43-x86-6.patch

from: https://xenomai.org/downloads/ipipe/v4.x/x86/

5) Run these commands

apt-get install libncurses5 libncurses5-dev build-essential kernel-package fakeroot libssl-dev

6) Prepare the Cobalt kernel

    cd /usr/src/linux-4.4.43

    /usr/src/xenomai-3.0.3/scripts/prepare-kernel.sh --arch=x86_64 --linux=/usr/src/linux-4.4.43 --ipipe=/usr/src/ipipe-core-4.4.43-x86-6.patch

7) Run
cd /usr/src/linux-4.4.43
cp /boot/config-4.4.0-31-generic .config

export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/opt/Qt/5.8/gcc_64/lib/pkgconfig
export LD_LIBRARY_PATH=/opt/Qt/5.8/gcc_64/lib:$LD_LIBRARY_PATH

make [ARCH=i386] xconfig

8) Apply Settings from: https://xenomai.org//2014/06/configuring-for-x86-based-dual-kernels/#Optimized_CPU_and_platform_settings

    Power Management and ACPI options->ACPI Support
    Search for ACPI_PROCESSOR (disable ACPI_PROCESSOR)
    Search for CPU_FREQ (disable CPU frequency scaling)
    Search for CPU_IDLE (disable CPU idle PM support)
    Search for INTEL_IDLE (disable)
    Search for INPUT_PCSPKR (disable PC speaker support)

    Search for XENO and enable RTnet
        Yes -   Enable RTnet, TCP/IP socket interface
        Yes -   Search for XENO and enable User-space device driver framework

    Search for UNISYS (disable Unisys SPAR driver support)

9) Run

export CONCURRENCY_LEVEL=4
make bzImage modules

make modules_install
make install

10) Install Xenomai

./configure --with-core=cobalt --enable-smp --enable-pshared
make install

Ubuntu Server 16.04 with dropbear

Manage to figure it out in the end. I ended up writing a blog post about it here Unlocking Ubuntu Server 16 encrypted LUKS using Dropbear SSH. The post I wrote is very heavily based from the answer I found here SSH to decrypt encrypted LVM during headless server boot? and all did was change the version 16 specific parts.

cheers
alexis

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