Tag: hardy heron

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How to upgrade to Ubuntu Hardy Heron 8.04 LTS without Internet Connection

ubuntu hardy logo

Previously I’ve published how to upgrade Ubuntu Linux operating system to the latest release using “upgdate-manager” tool. But what if the computer you are upgrading does not have internet connection ?

Upgrading to Hardy Heron without Internet Connection

  1. Download and burn the alternate installation CDROM
  2. Put it in your CDROM Drive and follow the instruction
  3. If nothing happened, you can launch upgrade manager by typing :

    gksu “sh /cdrom/cdromupgrade”

That’s all hope you can enjoy the latest Ubuntu 8.04 LTS release !

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Linux: How to get Harddisk UUID number

Modern Linux system uses UUID instead of traditional block name (/dev/hda1, /dev/hda5, /dev/sdb) to uniquely identify harddisk or other storage medium. This is because UUID is unique and never changes even if you switch the harddisk ordering.

So by mounting or refering your hard disk by its UUID, you are guaranteed to mount the correct storage medium no matter where its connected on your system.

Here’s how to get your harddisk UUID number

Method 1: Ubuntu and Debian Way

sudo vol_id /dev/hda1

This command display harddisk extra information including its filesystem and uuid number.

Method 2: using /dev/disk/by-uuid/

Another method which works universally on modern GNU Linux operating system is :

ls -l /dev/disk/by-uuid

which will uuid of connected storage medium to your computer.

That’s all, now you can easily identify your storage disk UUID number without much problem anymore.

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Wubi – Easiest way to install Ubuntu in Windows partition

Wubi is an application which simplifies Ubuntu Linux installation on Windows partition. To Windows users, Wubi eliminates the hassle of having to repartition hard disk which carry the risk of loosing precious data.

Wubi does this by using a loopback device, creating a large file on a Windows partition and installing Ubuntu inside it. The best thing about Wubi is, it does not use virtual machine or any type of emulation. Thanks to Wubi, Ubuntu can be booted natively using Microsoft Windows boot loader.

When you are done experimenting with Ubuntu (who does?), or need to reclaim the hard disk space back, you can choose the uninstall button from the Windows Start Menu and everything will be removed, just as simple as that.

Wubi is one of the few application that made me wish that I have a Windows machine because I’m dying to try it out!

Wubi will be included with the upcoming Ubuntu 8.04 LTS (Hardy Heron) release, due in late April 2008.

Credits to fenris the 1337 pencacai for his original research on Wubi.

Visit Wubi official website here : http://wubi-installer.org/

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New features in Ubuntu Hardy Heron (due in 20 days)

Though the main focus of the upcoming release of Ubuntu 8.04 LTS (Hardy Heron) is for long term support and bug fixes of existing features, Hardy Heron still packs quite a few notable features to look forward to :

Wubi and umenu

Installation without creating a separate partition for Ubuntu Linux is made easier with Wubi! Inserting Ubuntu CDROM will display a start up application which enables you to install Ubuntu on your windows partition using a loopback device.

wubi ubuntu installer

umenu ubuntu installer using wubi

After installation, Ubuntu will be added as one of bootable operating system in your Windows boot menu.

Install Ubuntu without the need to repartition, format and hassle.

Fine-grained User Permission Control
Ubuntu Hardy Heron integrates PolicyKit on administrative user interfaces. This allows you to have better control over user access on specific administrative task. For example, you can assign privilege for one user to access network controls but not software installation.

PolicyKit in Hardy Heron

Easy to use host-based firewall
The new Ubuntu release, Hardy Heron also includes ufw (uncomplicated firewall) that is easy to setup and use by end users without bothering network admnistrators.

New default bittorrent downloader
Transmission replaced Gnome Bittorrrent as the default bittorrent downloader in Ubuntu Hardy Heron LTS. Transmission is a lightweight bittorrent client with automatic banning feature and protocol encryption.

transmission.jpg

Additionally, Ubuntu 8.04 LTS also includes GNOME 2.22 and Firefox 3 Beta, which is better integrated with GNOME desktop environment. I’m looking forward for the next Ubuntu release, due on April 24th, 2008, that is three weeks from now!

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Should Ubuntu prevent “sudo rm -rf /” command ?

There have been talks over the ubuntuforums, regarding a user posts “sudo rm -rf /” command on “Absolute Beginner Talk” board, which results in deletion of the whole root directory of a Linux operating system (Ubuntu included).

Was the user out of his line when he’s posted such command on a beginners forum? Absolutely.

Exercise Caution When Running sudo
Users should exercise caution when running command with root privilege (sudo) . I pity to those who unknowingly execute the command and completely destroy their operating system. Its a truly lame attempt to humor oneself at the expense of others losing their precious data.

It is not a bug in coreutils, it is not a bug at all
But the lamest part is, somebody took the time to file a bug report regarding “sudo rm -rf /” on Launchpad.

There’s nothing wrong with that command, it did what it supposed to do, and that is the behavior expected from a Unix/Linux based system, there’s nothing wrong with that command at all.

Besides, if somebody compromised your system and got into your root accout, you are screwed anyway as there are a lot of other command which has the same (if not worse) devastating effect as “sudo rm -rf”, a fact that has been acknowledge on the same bug report

What do you think ?
I don’t know about you, but I felt more comfortable educating newbie users to be more careful when running command with root privilege than supporting an act which seems to ‘cripple’ the operating system itself. Trust me, this is not going to help newbie users.

p/s: I’m in complete agreement with this guy, this is not a bug, stop pampering newbies or else you’d ruin each and every of them!