Exercise #1: Exploring Open-Source Operating Systems with Virtual Machines J. H. Wang Sep. 20, 2016.

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Presentation transcript:

Exercise #1: Exploring Open-Source Operating Systems with Virtual Machines J. H. Wang Sep. 20, 2016

Objectives To get you familiar with some open-source operating systems like Linux To use virtualization tools such as VMware Player, or VirtualBox To explore the source code of Linux kernel

Exploring Linux Operating Systems The usual (and more difficult) way Download one of the Linux distributions as CDs or DVDs E.g. Redhat, Debain, Ubuntu, … Partition your hard disk and start installing the Linux distribution Configure your system parameters such as network, display, I/O devices, … Download the latest Linux kernel, compile it and replace the original kernel Since we will not focus on directly installing Linux from scratch, this is not what we will do…

The easier way (that will not depend on hard disk partitions and your OS platform) Download the virtual machine manager VMware Player or VirtualBox Download a virtual machine image pre-installed with OS and applications Boot the virtual machine image Download the latest Linux kernel, compile it and replace the original kernel

Other (indirect) ways Connecting to remote Linux hosts or workstations using telnet, ssh Installing UNIX-like environment such as cygwin http://www.cygwin.com/

VMware Player A popular free virtualization tool Easy to use You can run many different OS on various platforms We have other virtualization tools, as introduced in Sec. 1.12 Easy to use

Details Download VMware Player Download a virtual machine image http://www.vmware.com/products/player/ Latest version: Workstation 12 Player Download a virtual machine image http://www.vmware.com/appliances/ Boot the virtual machine within VMware Player

VirtualBox VirtualBox homepage: http://www.virtualbox.com/ Latest version: 5.1.6 You can also download the VirtualBox appliances or virtual machine images from the textbook author’s website: http://people.westminstercollege.edu/faculty/ggagne/osc/vm/index.html Debian 8.2 distribution, running kernel 3.1 (See Sec.1.12 for more details)

Obtaining the Latest Linux Kernel Source Code http://www.kernel.org/ The latest version: 4.7.4 Uncompress the downloaded file by: tar, gzip/gunzip or bzip2/bunzip2 tar xjf linux-4.7.4.tar.xz

A Tour of Linux Source Code Under /usr/src Maybe /usr/src/linux or /usr/src/linux-x.y.z Different modules drivers/ fs/ mm/ net/ … Procedures of Building a New Kernel (See Programming Project)

Further Reading Programming Project in Chap.2 Creating Linux kernel Modules