HP z545 Informações Técnicas descarregar pdf (Página 3)

ment is 256 MB. One area where you

shouldn’t hold back in spending is hard

drive capacity. Basically, more is better.

I recommend getting at least a 200 GB

hard drive – especially since hard drive

prices are dropping quickly. 1 GB video

files will chew up your hard drive space

fairly quickly.

The good news is you can always add

more hard drives later. Although a DVD

burner is not required, a burner will

come in handy if you’d like to archive

some of your favorite recordings. An-

other area where you shouldn’t be mi-

serly is a higher quality silent power

supply. This is especially true if you

need to power multiple drives. In my

past experiences, a cheap power supply

is usually the first component to fail in

a system.

Video card requirements are fairly

light with MythTV. I picked up a used

NVidia card for about US$ 20. The card

has an S-video out for my TV connec-

tion. If you’re using a Hauppauge 350

card and don’t need any 3D acceleration,

stick with the motherboard’s on-board

video. If you plan on connecting your

MythTV box to your home network

wirelessly, use at least a 802.11g network

card. 802.11b will not be fast enough to

stream large video files.

Programming Guide

You’ll need a service on the Internet

that provide television programming in-

formation. If you are located in North

America, for instance, you may want to

set up an account with zap2it [2]. This

account will be used by MythTV to pull

down all the TV programming informa-

tion that is stored in the database. zap2it

is kind enough not to charge anything to

the MythTV community for this service,

but in fact, zap2it provides the same ser-

vice to many of the commercial DVR

products for a fee.

Go to the website http:// labs. zap2it.

com and enter the following code:

'ZIYN-DQZO-SBUT'

You will then be prompted to create a

user name and password. Write these

down, as you will need them during the

installation process.

If you live outside of North America

you will need to setup XMLTV, and you

may have to do additional configuration,

depending on the country where you re-

side. Please check the MythTV wiki on

XMLTV for your options [3].

Installing MythTV via

KnoppMyth

KnoppMyth is the easiest way to setup a

dedicated MythTV box [4]. The Knopp-

Myth distribution is based on Debian

and uses the auto-detection scripts based

on the Knoppix live CD distribution. Be-

fore starting the installation process, it is

very important to investigate how you

will import TV listings into your system.

At the first prompt, you can get the op-

tion of doing an auto install, running as

a front end, doing an upgrade, or doing a

manual install. For most people, the auto

install is sufficient. On multiple occa-

sions, you will be presented with a

warning that your hard drive will be

completely re-written. The installer will

then ask you to set up a regular user ID

in addition to a root password.

Another final warning gives you the

option to quit the install. The installer

scripts then start off by partitioning your

hard drive and setting up a customized

version of Debian running the 2.6 ker-

nel. After the initial installation, the sys-

tem reboots. At this point, the driver has

been set up for your Hauppauge capture

card along with accelerated 3D drivers

for NVidia graphics card owners.

Upon the first login, you are prompted

to sign on as root and complete the

MythTV configuration process. You first

need to finish your network configura-

tion by deciding if you want static or

dynamic IP addresses. You are then

presented with the option of configuring

your remote control. You can select

from 42+ brands of remote controls,

including the ones bundled with the

Hauppauge capture cards. If you make

a mistake configuring your remote, you

can simply rerun the setup script at any-

time by typing:

#: /usr/local/bin/

lirc-reconfig.sh

You are then asked if you want to add

additional i686 modules; if not, you can

go with the default settings. The script

then goes about installing the main

MythTV add-on modules.

The main myth-setup script starts up

and asks you to enter your language

preferences. You then need to do some

general MythTV configuration:

• General – has the IP addresses for

your back-end server and ports that

MythTV will run on. If your MythTV

box will serve as a both a front and

back end system, leave the defaults (IP

address of 127.0.0.1, etc.). The next

screen will have TV format (NTSC or

PAL) and channel frequency settings

(us-cable, us-bcast, us-cable-hrc,

us-cable-irc, japan-bcast, japan-cable,

europe-west, europe-east, italy,

newzealand, australia, ireland, france,

china-bcast, southafrica, argentina,

Cost of MythTV box components:

• MSI 651M-L motherboard US$ 25 (EUR 20)

• 2.4 Ghz Intel Celeron processor with fan US$ 50 (EUR 39)

• 512 MB memory (PC3200) US$ 40 (EUR 31)

• 250 GB 7200RPM hard drive US$ 80 (EUR 62)

• Hauppauge WinTV DVR 150 card US$ 60 (EUR 47)

• Geforce MX440 AGP video card with video out US$ 20 (EUR 16)

• Cooler Master ATC-620C Micro ATX case: US$ 75 (EUR 58)

• Ultra silent 300 watt CMAX power supply US$ 30 (EUR 23)

• NEC Dual Layer DVD burner US$ 40 (EUR 31)

• Lite-On wireless keyboard US$ 15 (EUR 12)

Total cost: US$ 435 (EUR 339)

Costs of comparable commercial offerings:

• Tivo: US$ 255-355: US$ 100-200 + US$ 155 (yearly guide subscription fee)

• HP z545 Digital Entertainment System: US$ 1,800 (runs with Microsoft Windows

Media edition)

• Alienware DHS System: US$ 1,600 (runs with Microsoft Windows Media edition)

Buying the Box

MythTV

KNOW-HOW

ISSUE 71 OCTOBER 2006

W W W . L I N U X

M A G A Z I N E . C O M

1 2 3 4 5 6

TV IN LINUX 1
KNOW-HOW 2

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