Previous Concepts
Pre-Installation
Installation
More Concepts
Post-Installation
Previous Concepts
A virtual machine is a software that
emulates a computer and can execute
programs as if it were a real computer.
(examples: VirtualBox, VMWare)
Boot sequence, (boot or booting in
] English) is the process that starts the operating system
when the user turns on a
computer. It is responsible for the initialization
of the system and the devices.
Virtual Machine
New VM
Memory
Disk Step 1
Disk Step 2
CD-Rom
Pre – Installation
Reserve disk space (at least 5Gb)
Perform disk defragmentation from
Windows
Set the Bios to "boot" from the
CD drive / DVD
Tips in case of problems in the
installation:
a) Check the cd for defects
b) Perform a Memory Scan
Start Manager: GRUB
] To be able to maintain two
operating systems in our PC, apart from having
installed in different partitions
we will need to be able to choose between
boot between one and the other. This is the work of
boot managers.
There are several managers, Windows itself
has its own. One of the most flexible and the
that is becoming standard is GRUB
(GRand Unified Bootloader)
Disk Defragmenter
Analyze and defrag
Bios Configuration
Boot Sequence (Boot)
Live CD Test / Installation
Language Selection
Welcome
Geographical location
Keyboard
Configuring disk
Partitions
Unpartitioned free space
] Creating partitions
ext3 and Swap
User data
Check before installing
Installing
File systems
File systems structure the
information stored in a unit of
storage that will then be represented
either textually or graphically. Most
operating systems have their own
file system (Ex: NTFS, ext3, Fat32)
Unix File Systems
ext2: the original is no longer used
] ext3: the most used and general purpose
ReiserFS: theoretically efficient for the case of
have many files, very small, in a
same directory. It was reputed to be something
unstable.
xfs: donated by SGI (Silicon Graphics),
highly scalable.
jfs, UFS, ext4
Partitions in Unix Systems
Partitions in Systems Unix
Partitions on a disk are named
by the device name and partition number
:
Primary: / dev / hda1, / dev / hda2, / dev / hda3,
/ dev / hda4
Logic: / dev / hda5, etc.
Space and partition usage
The swap partition is used as space
of virtual RAM on hard disk. It serves
so that, in cases of work overload,
the operating system can relegate to disk
those programs that are running
but they can wait.
The root partition (/) is the one that contains all the
operating system software.
Gparted: Free Space
Creating a partition
Partition created
Complete Installation
Login
Post Installation
System -> Administration -> Software Sources
System -> Administration -> Language Support
System -> Administration -> Package Manager
Synaptic
Repositories
Repositories consist of sites
web where are stored
the packages, which a
once downloaded, install the software
on the computer.
Restrictive repositories
Add new repositories
Add Java, Flash, etc
from Nettech Post http://bit.ly/2RlfRvT
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