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NaggieHow to Recover Linux Data after Hard Drive Crash?

Saturday, June 5th, 2010

Is there problem with your Linux hard drive that abruptly get crashed every time when you boot your system? Or you are not able to boot your Linux computer and access data from it? The problems arise due to various reasons, causing hard drive crash.

Most commonly, the problem occurs due to missing or corrupt data structures of your Linux hard drive. Due to the same, the operating system can not locate stored files on the hard drive and access them. At this point, you need to opt for Linux data recovery solutions to get your valuable data recovered.

Symptoms that indicate the crash of a Linux hard drive: Such symptoms include the following ones:

  • Your Linux operating system-based computer does not boot up.
  • You encounter various error messages, such as “No Fixed Disk Present” or “DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER”
  • Black or blank screen after you power up your system.
  • System reboots, freezes, or stops responding frequently.
  • “Operating system not found” and “Drive not formatted” messages.

Hard drive crash can be caused by various reasons and renders entire system inaccessible. The most common reasons of Linux hard drive crash are as given below:

  • Boot sector virus or damaged MBR (Master Boot Record).
  • Corrupted or damaged file system of Linux hard drive.
  • Missing or damaged system files or operating system.
  • Virus infection.
  • Corrupt Superblock or other critical meta data structures.

In order to fix a crashed Linux hard drive and perform Data Recovery Linux, you are required to format it and reinstall operating system. This process replaces all the missing, corrupt, or damaged system resources and brings the hard drive back to life. However, it also removes all the data from hard drive and create needs of Linux recovery.

The best possible way is to recover i.e. recovery, and efficient commercial software, known as linux recovery software. They use high-end scanning techniques to carry out in-depth scan of entire Linux hard drive to extract all lost data from it.

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NaggieCHKDSK/F Fails to Fix File System Problems

Monday, May 31st, 2010

One of the most common reasons for unbootability of the computer system is the file system corruption in Windows XP. And for damage in file system, the reasons responsible for that are unexpected system shutdown (due to power outage or human mistakes), virus infection, MFT (Master File Table) damage, and more.

In order to get past the corruption issues in a Windows XP system is by executing CHKDSK/F command. This command checks the physical and logical integrity of the file system and repairs it in case of any damage.

Though the command, in most of the situations, is a life-saver, but do not guarantee 100% success in every life system corruption issue. In such cases, when the CHKDSK command fails to repair, an ideal alternative is to reinstall Windows XP and restore data from an updated backup. However, in case no backup is available, the user can easily recover data using a commercial Windows Recovery application.

Let’s consider a practical scenario that explains the above situation. You encounter the below error message at the startup of Windows XP operating system:

“C:\$MFT is corrupt and unreadable. Please run the chkdsk utility.”

After the above boot error message pops up, your system becomes unbootable and its data gets inaccessible. As suggested in the error message, when you run CHKDSK utility, you encounter another error message:

In the master file table (MFT) bitmap, CHKDSK discovered free space marked as allocated. CHKDSK discovered free space marked as allocated in the volume bitmap. Windows found problems with the file system. Run CHKDSK with the /F (fix) option to correct these.

As error message suggest, when you execute CHKDSK utility with ‘/F’ parameter, it shows the same error message. Since the system could not be started, the data saved in the Windows based hard drive remains inaccessible.

Resolution: In order to overcome the CHKDSK/F failure error message, follow the step mention below:

1. Reinstall Windows XP on your system.
2. Restore the data from an updated backup. In case no backup is available, use a commercial Windows Data Recovery utility.

Such windows data recovery tools use effective recovery techniques to perform complete recovery of all formatted files and folders.

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NaggieRecovering Linux System after Using Fsck on a Mounted System

Tuesday, May 18th, 2010

Is there any difficulty that you found while mounting your Linux system disk? The problem could be due to corruption in the file system. In order to address such issues, Linux OS provides fsck utility. It is a command-line utility, which checks integrity and consistency of the Linux file system. In addition it finds errors and fixes them, if possible. However, if you run this utility on a mounted file system, then you may not be able to access the data at all. In such cases, you should use third-party Linux data recovery software to perform data recovery Linux system.

Consider, you have accidentally run fsck on a mounted Linux OS. The inode root gets damaged and all inodes start calling similar blocks. When you try to mount the volume after fsck, the following error message is discovered:

“Mount: wrong fs type, bad option, bad superblock on /dev/hda1, missing codepage or helper program, or other error. In some cases useful info is found in syslog – try dmesg | tail or so”

When you run \dmesg\, as suggested in the error message, another error message may be displayed, that is:

“ext3-fs: corrupt root inode, run e2fsck”

And when you run e2fsck, yet another error message is displayed, that is:

“Root inode is not a directory. Clear?”

Once you press ‘Y’ and proceed with the process, the parent entry of each inode from the root directory will be deleted. The root inode will attempt to recover but if it fails, another error message will be displayed, that is:

“Cannot Allocate Root Inode”

After this error message, you will not be able to access your system.

Reason: This behavior is caused due to corruption of the file system, superblock, root inode, or any other Linux data structure. Because of this, the OS cannot locate the hard disk volumes.

Solution:

In order to sort out this problem and perform Linux data recovery, you should reformat the hard disk and reinstall the Linux operating system. However, that would invariably mean that your valuable data will be lost.

In such cases, you should use a third-party Linux recovery to recover lost data. Such tools are able to Recover Linux data safely by using fast yet sophisticated scanning algorithms.

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NaggieNew Arrival: PC/OS OpenWorkstation 10.1 GNOME has released

Monday, March 8th, 2010

PC/OS OpenWorkstation 10.1 GNOME is the first release in the PC/OS family to be based on the GNOME desktop environment, as the Linux distribution has traditionally been based on XFCE. According to the developers, they are targeting more high performance users with this release, but the minimum requirements are still very manageable.

Highlights of PC/OS OpenWorkstation 10.1 GNOME:

-GNOME 2.28;
-Linux kernel 2.6.31;
-Empathy replaces Pidgin as the default IM;
-OpenOffice.org 3.1;
-Exaile;
-Gambas2;
-WideStudio;
-Full multimedia codecs;
-Sun Java 6;
-Evolution Groupware Suite;
-GnomeBaker;
-Exaile;
-VLC;
-GIMP (With all plugins);
-Google Chrome;
-Nimbus GTK theme and Metacity.

Minimum system requirements:

  • 1 GHz Processor;
  • 512MB of RAM;
  • 10GB of Hard Drive Space.

One of the biggest updates in PC/OS OpenWorkstation 10.1 is the upgrade of the underlying operating system and the distro is now based on Ubuntu 9.10, the latest stable release of the popular Linux distribution.

PC/OS aims to provide a complete experience out of the box, so it comes packed with all the components a user might need, like video codecs, the Java plugin and others.

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NaggieVine Linux 5.1 Released

Wednesday, March 3rd, 2010

Vine Linux 5.1 has been released on 25th Feb. 2010, announced by Daisuke Suzuki. ISO images for 32-bit, 64-bit and PowerPC architectures.

Vine Linux is a free Linux-based operating system. It is designed for both workstations and server machines. The new version of Vine Linux brings only security updates and bug fixes that were announced since the release of Vine Linux 5.0. Therefore, it should be considered a maintenance version, with no new features!

Highlights of Vine Linux 5.1:

-Linux kernel 2.6.27.29;
-X.Org 7.4;
-X Server 1.6.3;
-GNOME 2.26.3;
-Mozilla Firefox 3.5.2;
-Faster and lightweight;
-Reorganized software collection;
-Support for x86_64 (64-bit) platforms;
-Support for PPC (PowerPC) platforms;
-Greatly improved the look and feel;
-Added user-friendly utilities;
-Added DVD/USB installable images.

For 32-bit edition:

  • Pentium 1GHz or higher processor;
  • 256MB (Recommend 512MB) system memory;
  • 700MB free disk space for minimum install;
  • 4GB free disk space for full install.

For 64-bit edition:

  • A 64-bit processor (AMD64 or Intel64 architecture CPU);
  • 256MB (Recommend 1GB) system memory;
  • At least 1GB (Recommend 4GB) free disk space.

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NaggiePTS Desktop Live 2010.1: Phoronix Test Suite 2.4.1 in a Live CD

Saturday, February 27th, 2010

PTS Desktop Live 2010.1, codenamed “Anzhofen,” a live DVD distribution designed solely to run the Phoronix Testing Suite, has now been released, bringing the comprehensive benchmarking and testing software suite to those that want the most accurate results.

Like previous releases, it’s based on the popular Ubuntu Linux distribution and PTS Desktop Live 2010.1 comes with the latest Phoronix Test Suite 2.4.1. The idea is to give users a standard software stack to run the testing suite ensuring that the underlying operating system doesn’t interfere with the validity of the results.

Highlights of PTS Desktop Live 2010.1:

  • Custom Linux Kernel 2.6.33 Release Candidate 6;
  • Based on the latest Ubuntu 10.04 LTS Lucid Lynx packages;
  • 43 tests from the Phoronix Test Suite 2.4.1;
  • Stripped-down version of GNOME 2.29;
  • Designed for relatively modern hardware.

It requires:

  • Modern 64-bit AMD or Intel processor;
  • 2GB of RAM;
  • An ATI, NVIDIA or Intel graphics card;
  • Internet connection.

Phoronix has gone to great lengths to ensure that PTS Desktop Live 2010.1 squeezes every last ounce of performance out of the PC and that all unnecessary components are removed. As such, the developers have put the Linux Kernel 2.6.33 on a diet, taking out support for older hardware and platforms and the Anzhofen 2.6.33-rc6-phx10 kernel weighs in at just 16 MB, being some 40 percent smaller than the vanilla Linux Kernel in Ubuntu, Phoronix says.

The developers warn that this means that you’ll likely need a machine not older than two or three years to ensure that everything works. Continuing with the minimal design, PTS Desktop Live 2010.1 comes with just a customized GNOME 2.29, a web browser and a text editor and, obviously, the newly released Phoronix Test Suite 2.4.1.

The next release, PTS Desktop Live 2010.2 (codenamed “Rottbach”), is expected to land at about the same time as the upcoming Phoronix Test Suite 2.6, in May 2010. A version of the live OS designed with netbooks in mind, PTS Netbook Live 2010.1, should be coming soon.

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NaggieOpen Source embedded operating system Contiki updated to 2.4

Friday, February 19th, 2010

Contiki avr 7ddb5790c6251c75 Open Source embedded operating system Contiki updated to 2.4

The “operating system for embedded smart objects“, Contiki, has been updated to version 2.4 with new experimental platforms and improved stability.

The BSD licensed operating system is designed to be small, highly portable and work in networked, but memory constrained systems, such as sensor network nodes. Typical configurations can use as little as 2KB of RAM and 40KB of ROM and Contiki has been ported to computers such as the Commodore 64 and microcontrollers such as the TI MSP430 and Atemel AVR.

The updated version of Contiki adds two new experimental platforms, the Crossbow MicaZ and the Sensinode CC2430/8051. A new sensor API has been incorporated and the wireless MAC protocols have been overhauled, improving power efficiency and the handling of collision and interference. Source code and binaries are available to download.

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NaggieLinux group LiMo growing, Adobe joins

Wednesday, February 17th, 2010

US Software firm Adobe along with other three firms on Monday has joined the wireless Linux group LiMo, underlying the growing role of the Linux computer operating system in cellphones.

For software platforms on cellphones, the market is led by the Nokia’s Symbian operating system, but it has lost much ground over the last year to Apple Inc and Research in Motion, maker of the BlackBerry.

Linux, the computer operating system, is starting to win traction with Google Inc using Linux to build its Android platform, and Nokia rolling out its top-of-the-range model N900 using Linux Maemo.

According to head of LiMo, Morgan Gillis, there has been a step change for Linux in mobile. No other operating system now matches the vendor coverage of Linux — it is being commercially deployed by virtually all leading mobile device vendors from the largest downwards.

LiMo, a non-profit foundation, hopes to benefit from its focus on giving greater say over software development to telecoms operators.

The role of top operators in the platform – Vodafone uses it in its 360 offering – is a key attraction for Adobe, whose Flash is among the world’s most widely used web-based computer programs, and it has some 1.6 million developers.

Vodafone and other operators have strongly pledged for a smaller number of operating systems, as supporting them is a timely and costly exercise. However, in recent years, the number of large operating systems has increased, with new players like Apple and Google entering the mobile market.

In a latest twist Samsung Electronics — the world’s second largest handset maker and one of the key members of LiMo – unveiled in late 2009 its own smartphone platform.

Linux is the most popular type of free or so-called open source computer operating system which is available to the public to be used, revised and shared. Linux suppliers earn money selling improvements and technical services, and Linux competes directly with Microsoft, which charges for its Windows software and opposes freely sharing its code.

Japanese electronics firms NEC and Panasonic, and Israeli firm Else unveiled on Monday a total of seven new phones running on LiMo software.

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NaggieiPad Launch Lights Fuse on Apple App Development

Monday, February 15th, 2010

Today we received a tip from Apple, telling us that a San Francisco-based mobile app tracking analyst group called Flurry had been charting dvelopments for the Android and iPhone OSes, said the firm.

According to the firm, Android’s steady new application growth over the second half of 2009 closed the gap against the iPhone, reaching as many as one out of every three new applications starts within Flurry for December, the recent spike in Apple iPad support has swung the pendulum back in Apple’s favor to a level not seen at Flurry in six months.

For iPad, unprecedented surge in support for iPad is a positive early indicator for its commercial potential, Flurry adds. It shouldn’t come as a surprise that the iPhone OS saw a surge after the iPad announcement. Developers are always happy to get a shiny new piece of hardware to play with. And, by most accounts, the additional real estate that the iPad provides is an enormous asset. There’s also just naturally bound to be excitement surrounding any new Apple announcement for the foreseeable future.

Here, question is what, if any, affect Android tablets have had on the numbers. The devices were all over the place at CES, but, not surprisingly, have failed to capture the public’s attention in the same manner at the iPad.

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NaggieUsers dispute Microsoft’s explanation of Windows 7 battery problems

Thursday, February 11th, 2010

Microsoft’s head of Windows in response to customer complaints said Monday, Window 7 does not ruin notebook batteries or issue premature warnings that the power is exhausted.

Within minutes, Windows 7 users who have experienced those problems disagreed, calling the explanation “hand washing” and noting that if the company’s conclusion was correct, then many affected users must be “under some sort of bizarre bad battery curse.”

Windows 7 is doing what it’s supposed to when it reports that a laptop battery needs to be replaced, one of the symptoms that users began reporting as long ago as June 2009, according to Stephen Sinofsky, the president of the Windows division.

In an entry to the Engineering Windows 7 blog, Sinofsky said Windows 7 is correctly warning batteries to the very best of the collective ecosystem knowledge that are in fact failing. “In every case we have been able to identify the battery being reported on was in fact in need of recommended replacement.”

Sinofsky also dismissed claims by a minority of users that Windows 7 had permanently crippled their notebooks’ batteries. Numerous users said that after upgrading to Windows 7, their batteries’ lifespan was dramatically shortened, and then completely curtailed. Returning to another operating system, even Linux, did not restore the battery’s performance.

Sinofsky said, Windows 7 is neither incorrectly reporting on battery status nor in any way whatsoever causing batteries to reach this state. He also added that it was impossible for Windows 7 to harm the battery because of the way the operating system interacts with the hardware.

For Windows 7 or any other OS, there is no way to write, set or configure battery status information. All of the battery actions of charging and discharging are completely controlled by the battery hardware. Some reports erroneously claimed Windows was modifying this information, which is definitely not possible.

According to a battery maker, it was possible that Windows 7 was involved in some way. And a spokeswoman for Boston Power, a Westborough, the operating system usually receives information from system firmware which is responsible for monitoring battery capacity and operation. The firmware she referred to is the PC’s BIOS, which boots the computer and initializes the hardware components.

She also added that if there is an issue with the passing of information between the firmware and the operating system, it might cause improper warnings issued by the OS.

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