Overview
AUBURN is a minimum ANSIBLE server running on UBUNTU 16.04 LTS.
References
Procedure
These commands are run on VICTORIA to set a paravirtualised (PV) virtual machine (VM) running under Xen.
Create VM Directory
On VICTORIA , the following command is used to create the directory containing the VM files:
mkdir -p /OVS/running_pool/AUBURN
Create Virtual Disk
On VICTORIA , the following commands are used to allocate a 5 GB virtual disk:
cd /OVS/running_pool/AUBURN dd if=/dev/zero of=root.dsk bs=4096 count=1310720
Note: If one follows the recommendation of disk space being 1.5 GB as given in Ubuntu Server (CLI) Installation , the following error appears during installation:
Generate HVM Configuration File
On VICTORIA , the following command is used to create a HVM configuration file. The VM is converted to PV image later on:
cd /OVS/running_pool/AUBURN
cat >auburn.cfg <<DONE
# =====================================================================
# Guest configuration for AUBURN
# Minimal CLI server for Ubuntu
# Generated $(date +"%F %T")
# =====================================================================
#
# This is a fairly minimal example of what is required for an
# HVM guest. For a more complete guide see xl.cfg(5)
# This configures a HVM guest
builder="hvm"
# Guest name
name = "auburn"
# Device model
device_model_version="qemu-xen"
vendor_device="xenserver"
# 128-bit UUID for the domain as a hexadecimal number.
# Use "uuidgen" to generate one if required.
uuid = "$(uuidgen)"
# Initial memory allocation (MB)
memory = 2050
# Number of VCPUS
vcpus = 1
# Network devices
# A list of 'vifspec' entries as described in
# docs/misc/xl-network-configuration.markdown
vif = [
'mac=00:16:3E:00:00:02,bridge=xenbr0'
]
# Disk Devices
# A list of 'diskspec' entries as described in
# docs/misc/xl-disk-configuration.txt
disk = [
'/OVS/running_pool/AUBURN/root.dsk,raw,xvda,rw',
'/OVS/iso_pool/ubuntu-16.04.3-server-amd64.iso,raw,xvdc,ro,cdrom'
]
# Guest VGA console configuration, either SDL or VNC
vnc = 1
vnclisten = "0.0.0.0"
vncdisplay = "14"
# Fix for full-screen cursor
usb=1
usbdevice=["tablet"]
# New Features in Xen 4.4.0
# always emulate
tsc_mode="default"
DONE
Start the Installation
The installation is started by creating the VM as follows:
xl create /OVS/running_pool/AUBURN/auburn.cfg
Follow the procedure in Install Ubuntu 16.04 LTS Server .
Convert HVM to PV
Follow the procedure in Convert XEN HVM to PV .
Outstanding Issues
There are three (3) outstanding issues:
- Ethernet NIC is using DHCP instead of a manually assigned IP address
- DNS Server on home network is not being used
- Host name is not fully qualified
Using DHCP
The following command output shows that the IPV4 address ( 192.168.1.6 ) is not the one assigned in the Planning Document ( 192.168.1.109 ):
douglas@auburn:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:16:3e:00:00:02
inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::216:3eff:fe00:2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9002 errors:0 dropped:0 overruns:0 frame:0
TX packets:11237 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2772825 (2.7 MB) TX bytes:1480217 (1.4 MB)
Missing DNS Server
The following command output shows that the DNS server on the home network ( 192.168.1.252 ) is missing:
douglas@auburn:~$ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 192.168.1.1
Short Host Name
The following command output shows that the hostname lacks the domain name of yaocm.id.au :
douglas@auburn:~$ hostname auburn