Claudio Cardozo – Page 16 – Ziben IT Solutions

Ubuntu 9.04 reaches end of life

Ubuntu announced its 9.04 release almost 18 months ago, on April 23,
2009. As with the earlier releases, Ubuntu committed to ongoing
security and critical fixes for a period of 18 months. The support
period is now nearing its end and Ubuntu 9.04 will reach end of life
on Friday, October 23, 2010. At that time, Ubuntu Security Notices
will no longer include information or updated packages for Ubuntu
9.04.

The supported upgrade path from Ubuntu 9.04 is via Ubuntu 9.10.
Instructions and caveats for the upgrade may be found at
https://help.ubuntu.com/community/KarmicUpgrades. Note that upgrades
to version 10.04 LTS and beyond are only supported in multiple steps,
via an upgrade first to 9.10, then to 10.04 LTS. Both Ubuntu 9.10 and
Ubuntu 10.04 LTS continue to be actively supported with security
updates and select high-impact bug fixes. All announcements of
official security updates for Ubuntu releases are sent to the
ubuntu-security-announce mailing list, information about which may be
found at https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce.

Since its launch in October 2004 Ubuntu has become one of the most
highly regarded Linux distributions with millions of users in homes,
schools, businesses and governments around the world. Ubuntu is Open
Source software, costs nothing to download, and users are free to
customise or alter their software in order to meet their needs.

http://fridge.ubuntu.com/node/2132

Você sabe o que é versão BETA e pra que servem?

Hoje o nome de BETA vem em tudo (em peixes já conhecia). Mas este nome não significa má qualidade, produto inferior, ou algo do gênero. Existem, além de softwares, sites, projetos, e muitas outras coisas em versões BETA. Se até hoje você não parou para imaginar a importância destas versões, vamos destacar aqui alguns pontos importantes.

Teste

Versões Beta são versões de testes, tanto de programas quanto de sites. Portanto, não os despreze. Quando algo está em fase de testes, é necessário muito uso e feedback (comentário). Tenha em vista que aquele conteúdo é dinâmico, e a cada nova atualização serão implantados novos recursos, assim como serão corrigidos diversos erros. Ou seja, será algo melhor a cada dia que se passar.

Preço

Geralmente estas versões de teste são gratuitas, podendo ser testadas e comentadas por qualquer um. Portanto, faça parte. Prove, comente, e ajude a melhorar.

Além destes fatores, existem diversos outros que você descobrirá ao utilizar produtos ou serviços em versões de testes. Valorize este trabalho, pois são de pequenas ações que se formam grandes revoluções.

Reflections on Ubuntu, Canonical and the march to free software adoption

Prompted in part by the critique of Canonical’s code contributions to the kernel and core GNOME infrastructure, Mark has been pondering whether or not he feels good about what he does every day and how it’s done. He talks about his motivation for working on Ubuntu and some of the project’s achievements. It’s quite a motivational post and worth a read.

more: http://www.markshuttleworth.com/archives/517

SnapKeys Developing ‘Keyless Keyboard’ for Mobile Devices

A company called SnapKeys is pitching its “keyless keyboard” system to mobile device and computer makers, reports Reuters. SnapKeys’ software makes use of four invisible keys, each of which holds 6 or 7 letters. Two keys are placed on either side of a device’s display. The are other keys dedicated to punctuation. SnapKeys uses predictive software in conjunction with the invisible keys to guess at what people are attempting to type. Right now, it says its technology is 92% accurate in English with a dictionary of about 100,000 words. To start, the letters will overlay the device’s display when typing, but SnapKeys believes that users will eventually learn which letters are on each of the four keys and can turn off the overlay. SnapKeys believes its technology allows for much faster text entry on devices that lack physical keyboards. “There is a fundamental problem in entering data on mobile devices,” SnapKeys Chief Executive Benjamin Ghassabian told Reuters in an interview. “Keyboards were meant for fixed devices, not mobile. And screens are not supposed to be your input device; they are supposed to be output.” Many of today’s smartphones are touch-based and include software keyboards that appear on the display for text entry. SnapKeys said it is working with Philips, which is making the required hardware, and is in talks to sign deals with mobile device makers.

Ubuntu 4GB Ram Limitation and Solution

I’ve total 8 GB RAM installed in my dual boot Ubuntu Linux 10.10 (32 bit) version, but free -m command only shows 3291 (3G) memory. How do I use 8GB RAM under Ubuntu Linux? I do need to install Physical Address Extension (PAE) aware kernel under 32 bit Ubuntu Linux. It is a feature of x86 and x86-64 processors that allows more than 4 Gigabytes of physical memory to be used in 32-bit systems.

Without PAE kernel, you should see something as follows:
$ free -m

Sample output:

             total       used       free     shared    buffers     cached
Mem:          3291        801       2489          0         95        342
-/+ buffers/cache:        363       2927
Swap:         1906          0       1906

You have two options here as follows:

Option # 1: Use 64 bit Ubuntu Linux

64 bit Linux kernel will take care of 4G or more memory. Just grab latest 64 bit version and install it.

Option #2: Install PAE enabled kernel

Open terminal and type the following command:
$ sudo apt-get update $ sudo sudo apt-get install linux-headers-server linux-image-server linux-server

Once kernel images installed, just reboot your workstation, type:
$ sudo reboot

After reboot, login into your system and type the following command to verify memory usage:
$ free -m

Sample output:

             total       used       free     shared    buffers     cached
Mem:          8105       1292       6812          0         38        483
-/+ buffers/cache:        770       7334
Swap:         1906          0       1906