How to reset Ubuntu root password

September 9, 2008 42 comments

If your memory or mistyping leaves you without the right password to get into an account on a Linux computer, there’s no need to reformat. You’ll just need to reboot into single user mode to reset it. Here’s how to do it on a typical Ubuntu machine with the GRUB bootloader:

  1. Reboot the machine.
  2. Press the ESC key while GRUB is loading to enter the menu.
  3. If there is a ‘recovery mode’ option, select it and press ‘b’ to boot into single user mode.
  4. Otherwise, the default boot configuration should be selected. Press ‘e’ to edit it.
  5. Highlight the line that begins with ‘kernel’. Press ‘e’ again to edit this line.
  6. At the end of the line, add an additional parameter: ‘single’. Hit return to make the change and press ‘b’ to boot.
Change the admin password

The system should load into single user mode and you’ll be left at the command line automatically logged in as root. Type ‘passwd’ to change the root password or ‘passwd someuser’ to change the password for your “someuser” admin account.

Reboot

Once your done, give the three finger salute, or enter ‘reboot’ to restart into your machine’s normal configuration.

That’s all there is to it. Now just make sure to write your password down on a post-it and shove it somewhere safe like under your keyboard. 🙂

[ Source: Hackzine.com ]

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How to setup headless Sun xVM VirtualBox on Ubuntu server

September 4, 2008 20 comments

The steps are not too difficult but I did have to find a few places for information. Search on the forum turn up nothing on this subject so hopefully this HOWTO would be helpful to someone out there.

Note: This is not using the OSE version.

Background:
VirtualBox has a very good GUI running on the host to manage guest OS. However when running a server, we typically do not want to run X on it. Fortunately VirtualBox has commandline tools to manage guest systems. It also provides the VirtualBox Remote Desktop Protocol (VRDP) to allow connection to the guest remotely.

Clarification of terms used:
Host – refers to the machine we are trying to install VirtualBox.
Guest – the VirtualBox guest system that is setup on the host.
Remote – the PC that we are working on to connect to the host via SSH.

This setup was done on a fresh install of Ubuntu Server 8.04 with openssh-server installed.

All the following steps are done by SSH into the host from a remote (I’m using Windows for now).

Read more…

Google Chrome (BETA) for Windows

September 3, 2008 2 comments

Google Chrome is a browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier.

Google Chrome

Google Chrome

One box for everything
Type in the address bar and get suggestions for both search and web pages.

Thumbnails of your top sites
Access your favorite pages instantly with lightning speed from any new tab.

Shortcuts for your apps
Get desktop shortcuts to launch your favorite web applications.

[ Source: Google Chrome ]

Bill Gates retires from Microsoft

June 23, 2008 Leave a comment

A Harvard University dropout who ushered in the home computer age and made billions of dollars along the way will have his last official day of work at Microsoft on June 27, 2008.

Three people will essentially fill the void left behind when Bill Gates retires from the company he and friend Paul Allen co-founded in 1975.

Since Gate’s begin his transition from leading Microsoft to heading his personal-bankrolled charity, The Bill and Melinda Gates Foundation, his job as Chied Software Architect has been handled by Ray Ozzie.

Craig Mundie inherited Gate’s Chief Research and Strategy Officer duties, while former Harvard classmate Steve Ballmer become Chief Executive Officer at the Seattle-based software colossus.

Gates left Harvard after two years to found the firm that become global powerhouse Microsoft. He later received honorary degrees from Harvard and other universities.

After retiring, Gates will remain chairman of the Microsoft board of directors and its largest shareholder.

“I don’t think anything is going to drastically change the day he leaves,” said Matt Rosoff of the private analyst firm Directions On Microsoft.

“If he thinks something is important and tells Steve Ballmer, Ballmer will listen to him.”

Still, Gates’s bespectacled nerdish visage is an integral part of Microsoft’s image and his departure is symbolic, according to analysts.

“The challenge Microsoft has when the founder departs is remembering its heart,” said analyst Rob Enderle of the Enderle Group in Silicon Valley.

“At some point the firm has to take the essence of what make Bill Gates successful and make surethat is preserved. Whether it is a company or a person, once you’ve lost your heart there isn’t much left but a shell” – AFP

Categories: Microsoft Tags:

Fix date and time in Ubuntu

June 20, 2008 30 comments

Dual-booting with Ubuntu and Windows sometimes giving a problem with date and time in Ubuntu. This is a well-established problem when dual-booting, since Linux assumes the hardware clock represents UTC, whereas Windows assumes the hardware clock represents local time. Luckily Linux provides ways to change this to fix it.

If you go into your clock settings, I think you can select between setting the hardware as either UTC or local time. Try switching that, and then adjust the time and see if it “sticks.”

If not, you can do this via the commandline in Linux :-

  1. In Linux, set the date and time to what it currently is. For example if it’s 10:20am local time:
    user@server:~$ sudo date -s 10:20
  2. Then update the hardware clock accordingly, and force this to be considered “localtime”:
    user@server:~$ sudo /sbin/hwclock --systohc --localtime
  3. Check to make sure it looks right:
    user@server:~$ sudo /sbin/hwclock --localtime
  4. Sync between hardware clock and system clock:
    user@server:~$ sudo /sbin/hwclock --hctosys --localtime

Now Linux should consider the clock to be “localtime”, which should be identical to what Windows is doing. So after rebooting into Windows, the time should look right.

Hope that helps.

Firefox 3 launch a success: 8 million downloads in 24 hours

June 20, 2008 1 comment

Mozilla’s Firefox 3 release event yesterday was an epic success. The servers logged over 8 million downloads during the 24-hour download day, and Mozilla has declared victory after exceeding its initial goal of 5 million downloads.

The rapid pace at which the downloads are occurring makes it difficult to compute an exact total. The counter appears to be lagging behind the actual count, and Mozilla’s statisticians say that the number could be as high as 3 million just four hours after Firefox’s official launch. Users can follow along at home by watching the counter at the official site.

Firefox 3 downloads have already exceeded the total number of downloads that took place in the first 24 hours after the Firefox 2 release. This is a significant milestone for Mozilla, which hopes that Firefox 3 will set the world record for the most software downloaded in a 24-hour period.

The display shows a breakdown by country, which indicates that the highest number of downloads is coming from the United States, followed by Germany and Spain. The US alone has reached over half a million downloads.

[ Spread Firefox | Download Day 2008 ]

Categories: Mozilla, Software Tags: , ,

Coming Tuesday, June 17th: Firefox 3

June 12, 2008 Leave a comment

Whenever we’re asked “when is Firefox going to be released” we endeavor to answer to the best of our abilities, but the truth of the matter is that we’ll only ever ship “when it’s ready”. We have a lot of indicators that help us understand when the product is ready for release: feedback from our pre-release milestones, excitement in the community and the press, availability of compatible Add-Ons, and a large active beta community helping us ensure that the release is compatible with all the various sites on the Internet.

After more than 34 months of active development, and with the contributions of thousands, we’re proud to announce that we’re ready. It is our expectation to ship Firefox 3 this upcoming Tuesday, June 17th. Put on your party hats and get ready to download Firefox 3 — the best web browser, period.

[ Source: Mozilla Developer News ]

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