Difference between revisions of "Vnx-rootfslxcdebian"

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== Basic installation ==
 
== Basic installation ==
  
−
Follow this procedure to create a LXC Debian based root filesystem for VNX. The procedure has been tested creating a Debian 7 over an Ubuntu 13.10 host.  
+
Follow this procedure to create a LXC Debian based root filesystem for VNX. The procedure has been tested creating a Debian Squeeze (6) over an Ubuntu 13.10 host.  
  
 
<ul>
 
<ul>
 
<li>Create the rootfs with:</li>
 
<li>Create the rootfs with:</li>
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  lxc-create -t ubuntu -n vnx_rootfs_lxc_ubuntu-13.10
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  lxc-create -t debian -n vnx_rootfs_lxc_debian
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Note1: Change "ubuntu" by "debian" in case you want to create a Debian rootfs. The default username/password is ubuntu/ubuntu.<br>
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Note1: The default username/password is root/root.<br>
 
Note2: use linux32 command to create a 32 bits image from a 64 bits machine, that is:
 
Note2: use linux32 command to create a 32 bits image from a 64 bits machine, that is:
 
  linux32 lxc-create -t debian -n vnx_rootfs_lxc_debian
 
  linux32 lxc-create -t debian -n vnx_rootfs_lxc_debian
 +
Note3: (revise, the template does not work)the debian lxc template distributed with ubuntu creates a Debian 6 (squeeze) image. To create a Debian 7 (Wheezy) image you have to download a template, for example, following the procedure described [http://www.pokorra.de/2014/01/lxc-linux-containers-on-jiffybox-running-centos-on-ubuntu/ here].
 +
wget  https://gist.github.com/tpokorra/8488744/raw/f1d050704e8cc8c70dd956eb18e6374d70f8ecf6/lxc-debian-wheezy
 +
mv lxc-debian-wheezy /usr/share/lxc/templates/lxc-debian-wheezy
 +
chmod a+x /usr/share/lxc/templates/lxc-debian-wheezy
 +
lxc-create -t debian-wheezy -n vnx_rootfs_lxc_debian
 +
 
<li>Move the rootfs to VNX filesystems directory:</li>
 
<li>Move the rootfs to VNX filesystems directory:</li>
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  mv /var/lib/lxc/vnx_rootfs_lxc_ubuntu-13.10/ /usr/share/vnx/filesystems/
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  mv /var/lib/lxc/vnx_rootfs_lxc_debian/ /usr/share/vnx/filesystems/
−
<li>Edit the rootfs configuration file (/usr/share/vnx/filesystems/vnx_rootfs_lxc_ubuntu-13.10-v025/config) to reflect the directory change:</li>
+
<li>Edit the rootfs configuration file (/usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/config) to reflect the directory change:</li>
−
  lxc.rootfs = /usr/share/vnx/filesystems/vnx_rootfs_lxc_ubuntu-13.10/rootfs
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  lxc.rootfs = /usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/rootfs
−
lxc.mount  = /usr/share/vnx/filesystems/vnx_rootfs_lxc_ubuntu-13.10/fstab
 
 
<li>Start the new rootfs to configure it and install new software:</li>
 
<li>Start the new rootfs to configure it and install new software:</li>
−
  lxc-start -n vnx_rootfs_lxc_ubuntu-13.10-v025 -f /usr/share/vnx/filesystems/vnx_rootfs_lxc_ubuntu-13.10/config
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  lxc-start -n vnx -f /usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/config
−
<li>Once the VM has started, make login (ubuntu/ubuntu) and:</li>
+
<li>Once the VM has started, make login (root/root) and:</li>
 
<ul>
 
<ul>
 
<li>Add VNX user and change the passwords:</li>
 
<li>Add VNX user and change the passwords:</li>
−
  sudo adduser vnx
+
  adduser vnx
−
  sudo adduser vnx sudo
+
  adduser vnx sudo
−
  sudo passwd root
+
  passwd root
 
<li>Update the system:</li>
 
<li>Update the system:</li>
−
  sudo apt-get update
+
  apt-get update
−
  sudo apt-get dist-upgrade
+
  apt-get dist-upgrade
 
<li>And install additional software, for example (list taken from [http://wiki.pcprobleemloos.nl/using_lxc_linux_containers_on_debian_squeeze/creating_a_lxc_virtual_machine_template here]):</li>
 
<li>And install additional software, for example (list taken from [http://wiki.pcprobleemloos.nl/using_lxc_linux_containers_on_debian_squeeze/creating_a_lxc_virtual_machine_template here]):</li>
  
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  apt-get install net-tools ifupdown sockstat
 
  apt-get install net-tools ifupdown sockstat
 
  apt-get install wget less lsof screen apt-utils nano telnet inetutils-ping psmisc
 
  apt-get install wget less lsof screen apt-utils nano telnet inetutils-ping psmisc
−
  apt-get install aptsh traceroute nmap apache2 wget tcpdump
+
  apt-get install aptsh traceroute nmap apache2 wget tcpdump vim
  
 
<li>Change VM name in hosts and hostname files:</li>
 
<li>Change VM name in hosts and hostname files:</li>
−
  sudo vi /etc/hosts        # change name to vnx
+
  vi /etc/hosts        # change name to vnx
−
  sudo vi /etc/hostname      #    "
+
  vi /etc/hostname      #    "
−
<li>'''Important:''' edit /etc/network/interfaces and coment "inet dhcp" lines to avoid delays at startup. Besides, edit /etc/init/failsafe.conf and change all "sleep XX" commands to "sleep 1".
+
<li>'''Important:''' edit /etc/network/interfaces and coment "inet dhcp" lines to avoid delays at startup.
 
</ul>
 
</ul>
 
<li>Stop the VM with:</li>
 
<li>Stop the VM with:</li>

Latest revision as of 00:28, 5 May 2014

How to create a LXC Debian root filesystem for VNX

DRAFT, DRAFT, DRAFT...not finished yet


Basic installation

Follow this procedure to create a LXC Debian based root filesystem for VNX. The procedure has been tested creating a Debian Squeeze (6) over an Ubuntu 13.10 host.

  • Create the rootfs with:
    • lxc-create -t debian -n vnx_rootfs_lxc_debian

    Note1: The default username/password is root/root.
    Note2: use linux32 command to create a 32 bits image from a 64 bits machine, that is: 

    linux32 lxc-create -t debian -n vnx_rootfs_lxc_debian

    Note3: (revise, the template does not work)the debian lxc template distributed with ubuntu creates a Debian 6 (squeeze) image. To create a Debian 7 (Wheezy) image you have to download a template, for example, following the procedure described here. 

    wget  https://gist.github.com/tpokorra/8488744/raw/f1d050704e8cc8c70dd956eb18e6374d70f8ecf6/lxc-debian-wheezy
mv lxc-debian-wheezy /usr/share/lxc/templates/lxc-debian-wheezy
chmod a+x /usr/share/lxc/templates/lxc-debian-wheezy
lxc-create -t debian-wheezy -n vnx_rootfs_lxc_debian
  • Move the rootfs to VNX filesystems directory:
    • mv /var/lib/lxc/vnx_rootfs_lxc_debian/ /usr/share/vnx/filesystems/
  • Edit the rootfs configuration file (/usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/config) to reflect the directory change:
    • lxc.rootfs = /usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/rootfs
  • Start the new rootfs to configure it and install new software:
    • lxc-start -n vnx -f /usr/share/vnx/filesystems/vnx_rootfs_lxc_debian/config
  • Once the VM has started, make login (root/root) and:
    • Add VNX user and change the passwords:
      • adduser vnx
adduser vnx sudo
passwd root
    • Update the system:
      • apt-get update
apt-get dist-upgrade
    • And install additional software, for example (list taken from here):
      • apt-get --no-install-recommends install -y adduser apt-utils iproute netbase sudo iputils-ping iptables rsyslog
apt-get install --no-install-recommends openssh-blacklist openssh-blacklist-extra openssh-server 
apt-get install net-tools ifupdown sockstat
apt-get install wget less lsof screen apt-utils nano telnet inetutils-ping psmisc
apt-get install aptsh traceroute nmap apache2 wget tcpdump vim
    • Change VM name in hosts and hostname files:
      • vi /etc/hosts         # change name to vnx
vi /etc/hostname      #     "
    • Important: edit /etc/network/interfaces and coment "inet dhcp" lines to avoid delays at startup.
  • Stop the VM with:
    • halt
  • Optionally, create a short link to the rootfs:
    • cd /usr/share/vnx/filesystems
ln -s vnx_rootfs_lxc_ubuntu-13.10 rootfs_lxc
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