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Meaning of Life in a Meaningless world...

Vbox autostart on CentOS 7

The basic steps is as follows: 

1. Install Virtualbox through the following commands: 

• # yum install epel-release -y
• # yum update -y
• # yum install gcc make patch  dkms qt libgomp kernel-headers kernel-devel fontforge binutils glibc-headers glibc-devel  -y
• # wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
• # yum install VirtualBox-5.2
• # /usr/lib/virtualbox/vboxdrv.sh setup
• # usermod -a -G vboxusers USERNAME

2. Configure Vbox for Autostart: 

• # cd /etc/vbox/
• vim /etc/default/virtualbox

       Enter the following in the file virtualbox: 

          VBOXAUTOSTART_DB=/etc/vbox
          VBOXAUTOSTART_CONFIG=/etc/vbox/autostart.cfg

• # vim autostart.cfg 

         Enter the following in the file autostart
         (Can enter more users depending on access):
         # Create an entry for each user allowed to use autostart
          USERNAME = {
            allow = true
          }

Change access permissions of Vbox folder:

• sudo chgrp vboxusers /etc/vbox
• sudo chmod 1775 /etc/vbox

Provide acess right for USENAME to the group:

• sudo usermod -aG vboxusers USERNAME

3.  vboxmanage is the command comes with VirtualBox software for management. Few handy Vbox command for practice is as follows:

• vboxmanage list vms                      # list the names of all VMs
• vboxmanage list runningvms # list currently running VMs
• vboxmanage list systemproperties | grep folder            # Display current setting repository
• vboxmanage startvm NAME-OF--VM --type headless     # Command to start VM from the shell
• VBoxManage controlvm NAMEOFYOURVM savestate  # Command to hibernate VM from the shell

4. Enable autostart for individual machines: 

• vboxmanage setproperty autostartdbpath /etc/vbox

5. Set a particular VM to start on boot:

• vboxmanage modifyvm {UUID-or-Name-of-VM-Here} --autostart-enabled on --autostop-type poweroff

6. Enable vboxautostart-service to run at start up:


• sudo systemctl enable vboxautostart-service
• sudo systemctl start vboxautostart-service

ISE & SDK on Ubuntu

1. ISE / Vivado setup (64 bit OS)
• Install ISE/Vivado......... sudo ./xsetup
• bash /Xilinx//ISE_DS/settings64.sh 
• PATH=$PATH:/Xilinx//ISE_DS/ISE/bin/lin64/
• ise
2. SDK Setup
• Install SDK......... sudo ./xsetup
• sudo apt-get install lib32z1 lib32ncurses5 (install ia32-libs)
• source /Xilinx//SDK/settings64.sh 
• PATH=$PATH:/Xilinx//SDK/SDK/bin/lin64/
• Check CodeSourcery and see if arm-xilinx-eabi-* installed or not. If not installed, the same can be installed from .bin located in installer. Set appropriate PATH to bin folder and start SDK. 
• xsdk
3. To install usb drivers  
• sudo apt-get install gitk git-gui libusb-dev build-essential libc6-dev-i386 fxload (Not required in most cases)
• cd //Xilinx//ISE_DS/common/bin/lin64/ digilent
• sudo ./install_digilent.sh (Accept default paths)
• Restart udev........./etc/init.d/udev restart

India @ a glance !

    ?    -  1900 : External elements invaded nation in the pretext of development.

1900 - 1940 : Generation has struggled hard to get freedom (To live) & Independence (From external elements)

1940 - 1980 : Generation has done their best to sacrifice freedom (To corrupt & unethical groups) & Independence (To internal elements) in the pretext of development.

1980  -  2020 : New generation is working their best for freedom (From corruption, Violence, Poverty, etc  ) & Independence (From Internal elements).

2020 - 2060 : Seems you can guess better !

Ultimately everything appears cyclic, and it seems the basic law of nature. Enormous energy, time, & thinking has to go to change this nature of life. As this is beyond the span of humans, it requires lot of forward thinking, which this century lacks due to overgrowing infulence of less relevant information & technology !

- Pramod