The second class in CIS222, Introduction to UNIX/Linux. Prepares for Virtualbox installation, and brief overview of default Linux installation. Overview of main points of BIOS, Virtualization.

1. CIS222-2
Introduction to UNIX/Linux
#2 - Virtualization, BIOS, Linux install
Russ Ferriday
russf@topia.com
(805) 910 7877

2. Class outline
1. Complete Wednesday’s lab
2. Install Virtualbox
3. Install Ubuntu 10.10 as a Guest OS

3. VBox Installation
A quick overview

4. OSX

9. Windows

15. ✓

18. Have your install image(s) ready in
c:yournameOS INSTALL
IMAGES. Then click New

20. ←Ubuntu10.10-1
←Linux
←Ubuntu

28. BIOS

29. Some systems go around
BIOS
the BIOS after boot.
Others use code in the
BIOS at runtime.
Some hardware also has
BIOS extensions, which
may also remain in place
• Basic Input Output System
• First code run by system on startup
1. POST == Power-on Self-Test
2. initialize kbd, video, other peripherals
3. find a boot device, and boot
4. stay in the loop (or not)

30. Typical Config Screen

31. BIOS Config
• Only visible part of BIOS
• Configures
• system clock, boot devices
• hardware features (CPU cache, mem
speed, and much more)
• BIOS security

32. BIOS storage
• BIOS itself now stored in flash ROM
• Setting usually also in flash, sometimes in
other devices with battery backup

33. “BIOS” misleading
• UEFI is more correct, but the word BIOS
has stuck with us
• UEFI ==
Unified Extensible Firmware Interface

34. BIOS issues
• Two drivers - one for boot, one for run
• Closed source components -- $ for IP
• Network boot questions

35. Virtualization

37. Hardware

38. Hardware

39. BIOS
Hardware

40. BIOS
Hardware

41. BIOS
Hardware

42. BIOS
Hardware

43. Host Operating System
BIOS
Hardware

44. Host Operating System
BIOS
Hardware

45. Host Operating System
BIOS
Hardware

46. Host Operating System
Virtualization
BIOS
Hardware

47. Host Operating System
Virtualization
BIOS
Hardware

48. Host Operating System
Virtualization
Guest Operating Systems
BIOS
Hardware

49. Host Operating System
Virtualization
Guest Operating Systems
BIOS
Hardware

50. Host Operating System
Virtualization
Guest Operating Systems
BIOS
Hardware

51. Host Operating System
Virtualization
Guest Operating Systems
BIOS
Hardware

52. Virtualization vs Bare Metal
Type 1 Type 2
Bare Metal
Virtualization Virtualization
GUEST OS
GUEST OS VIRTUALIZATION
OS VIRTUALIZATION HOST OS
BIOS BIOS BIOS
HARDWARE HARDWARE HARDWARE
Hyper-V Virtualbox
Xen VMWare
Parallels/
OpenVZ

53. Popular depictions of
Virtualization

59. Virtualization
• Many options
• OpenVZ (the open version of Parallels)
• Xen
• Virtualbox
• etc.

60. Why Virtualize
• Reduce hardware costs
• Reduce server management costs

61. ↓ Hardware Costs
• Fewer wasted resources
• Scale following demand (vs long term plan)
• Simplified purchasing - all iron looks alike,
once virtualization is installed

62. ↓ Management costs
• Makes old and new hardware act ~ alike
• Simplifies upgrades
• Simplifies load balancing --- reduced
engineering costs
• Multiple concurrent OSs - single box

63. Notes
• some things to experiment with later
• vBoxTool - remote command-line control
for headless virtualbox
• phpVirtualBox - web copy of VB UI --
beware the security recommendations

64. Let’s look at VBox

65. Headlines
• x86 Type 2 virtualization
• Hosts: Linux, Mac OS X, Windows XP,
Windows Vista, Windows 7, Solaris, and
OpenSolaris
• Guests: NetBSD and various versions of
Windows, Linux, DragonFlyBSD, FreeBSD,
OpenBSD, OS/2 Warp, Solaris, OpenSolaris,
Haiku, Syllable, ReactOS, and SkyOS

66. Headlines
“According to 2010 surveys by LinuxJournal.com
and LifeHacker.com,VirtualBox was the most
popular virtualization product with over 50% of
the vote.”
That works for me ;)

67. Live Migration*
Host A Host A
Guest
iSCSI

68. Live Migration*
Host A Host A
Guest
iSCSI

69. Live Migration*
Host A Host A
Guest
iSCSI

70. *Interested?
• Go... set it up... just for fun... And blog it.
• http://www.virtualbox.org/manual/ch07.html
• http://kurt.seifried.org/2010/05/24/linux-
iscsi-server-target/
• http://iscsitarget.sourceforge.net/
• http://stgt.sourceforge.net/

71. Two Main Interfaces
Virtualbox * = Code Scanning and Analysis Mgr,
Patch Manager, VT-x and AMD-V
Details: http://www.virtualbox.org/
manual/ch10.html
Guest
*
Developer SDK External
Apps

72. Ubuntu Linux Install

81. Please don’t
update while
installing!
Network limited!
☠NO!→
☠NO!→

86. Please don’t
update yet!
Network limited!
☠NO!→