Posts Tagged ‘boot menu’
June 14th, 2009 | 
Author: Open SUSE is an operating system that is built on the top of Linux Kernel. It is available as OpenSUSE 10.x and 11.x series. This operating system includes an installation and administration utility called YaST2, which is a powerful installation and system management tool. But at times, you observe that while updating your operating system using Yast2, it fails with unexpected errors. The file system might get corrupt due to the occurrence of such errors. In such situations, you need to format the hard drive and restore data from an updated and valid data backup. But, if you face any issues while restoring lost data from the backup or it is not up-to-date or non-existent, Data Recovery Linux applications can be used to extract the lost or inaccessible data.
Consider a practical scenario, you try to update your operating system openSUSE10.3 to 11.0 and it fails due to connection failure. After this, when you boot your system, it crashes and the boot process fails. The original desktop environment remains the same but boot menu displays openSUSE 11.0. Additionally, when you run a disk check utility, you get file system errors like:
“unreadable or no valid ext2 data’
Cause
The above issue occurs if these conditions are true:
Due to connection failure, there has been partial installation of openSUSE 11.0
One or more file system metadata structures (generally Superblock) are corrupted or damaged
Superblock is the key data structure that holds file system information as file system type, location of data packets, file system size etc.
Solution
To solve this issue, you need to follow these steps:
Run fsck using a boot disk. It is the command-line tool that allows you to solve most of the file system corruption issues.
If superblock corruption is the issue, you need to replace it with alternate Superblock
Format the hard drive and reinstall the operating system, if you continue to encounter the same issue. The lost data can be restored from backup.
If you find that data backup is invalid and is not able to restore the required information or is absent, Linux Data Recovery tools can be used. Such software use powerful scanning algorithms to recover the lost data in a safe manner. With self-explanatory user interface, advanced recovery features and read-only design, these Data Recovery Linux applications work as effective data recovery tools.
Stellar Phoenix Linux Data Recovery is a powerful Linux Data Recovery application to recover the lost or deleted data. The software comes with advanced features like RAW File Recovery, Disk Imaging, File Filter etc. It supports Ext2, Ext3 and Reiser FS file systems. The tool is compatible with almost all Linux distributions like SUSE, Red Hat, SlackWare, Turbo Linux, Gentoo etc.
Garry Thomson a student of Mass Communication doing research on linux recovery . He is also a freelancer for file recovery.
Article Source: Failed openSUSE Update and File System Corruption
Microsoft Windows XP was launched in October 2001 based upon the popular NT core. As the successor of Windows 2000 professional and Windows Me, this Windows version offered a new look and more reliable operating environment to the users. Windows XP is available in various versions: Professional, Home, Media Centre Editions which respectively target users with from diverse fields and skill levels.
In few of the cases, starting Windows XP may not ensue as expected, but instead you may get error messages as:
“Windows could not start because of a computer disk hardware configuration problem.
Could not read from the selected boot disk. Check boot path and disk hardware.
Please check the Windows documentation about hardware disk configuration and your hardware reference manuals for additional information.”
Alternatively, the error message statement may differ and may signify that Ntoskrnl.exe or Hal.dll file is corrupt or missing. In addition to this, improper system behavior may be encountered as: none of the Windows folders get accessed, Windows repair attempts fail through operating system CD, Recovery Console doesn’t display any option, which shows issues with the system.
• Ntoskrnl.exe: This is one of the primary parts of Windows XP systems, being built on Windows NT kernel and architecture. Ntoskrl.exe is the kernel image and is the source of major system services.
• Hal.dll: This file lets Windows XP to communicate with computer hardware. In other words, this is the Hardware Abstraction Layer which permits interaction between two system components: hardware and software.
Reason
• Boot.ini file is the main file, used by Ntldr to make Operating System boot selector menu, which contains the configuration options of boot menu. The above error message may occur if the default value is found to be corrupt or missing from this file.
• Another reason could be that Windows XP is not installed according to Boot.ini file.
• Partition path is set in Boot.ini file, which can cause the error messages to occur if has not been set correctly.
• Ntoskrnl.exe or Hal.dll is damaged or missing.
• Hard drive has got logically failed, which will require Data Recovery.
Solution
• The problematic Boot.ini file needs to be edited to ensure correct Default entry and accurate pointing to directories. For this go to My Computer->Properties->Advanced->Settings (under Startup and Recovery)-> System Setup->Edit. You can also use bootcfg /rebuild command through Recovery Console command prompt.
• To overcome Ntoskrnl.exe issues, you can use expand :\i386\ntoskrnl.ex_ :\Windows\system32\ntoskrnl.exe command through Recovery Console command prompt.
• To resolve hard drive issues, you need to use chkdsk /r command through Recovery Console.
When we are not able to solve such issues and the logical crash occurs we need to reinstall the operating system. That is preferably done after formatting a drive or partition, specifically the primary partition. The data lost in this way can be crucial to be recovered through Data Recovery Software , which are specialized Data Recovery utilities to scan and recover the lost data. The Data Recovery Software are interactive applications. They are safe to use due to their read-only behavior and offer secure restoration.
Stellar Phoenix Windows Data Recovery uses the most influential scanning algorithms and hence is able to recover most of the data and safely restore them. It is compatible with FAT16, FAT32, VFAT, NTFS and NTFS5 file systems. This Data Recovery Software is user friendly and can thoroughly examine hard drives. Stellar also offers Data Recovery software for Linux, Mac OS, UNIX, BSD and Novell Netware operating systems.
Jacob Luis is a student of Mass Communication doing research on File Recovery Software. He is also a freelancer for http://www.stellarinfo.com
Article Source: Computer Disk Hardware Configuration Problem
The EFI or Extensible Firmware Interface is the specification, defining the software interface between Mac operating system and platform firmware. EFI boot process involves a boot manager which is built into the firmware. But with few of the Mac systems, the boot drive options are found to be changed to include EFI boot.
When the user desires to choose from the available boot volumes, the boot menu starts displaying the options which have never been expected. The EFI boot option
starts displaying and you have no clue of the bootable volume which has lots of important data within. Also the booting process may not be as usual, but the drive name appears as normal in Finder.
The condition is threatening as the data stored can’t be lost in this way. The possible culprit behind the scene could be the some modifications, done to volume structure of the drive. This is also feasible that the user has restored a clone of the hard drive after upgrading or any other case.
In such conditions, the user is recommended to stop doing anything with the system and follow the given steps:
· If you are cloning the hard drive, try using some alternative method. It should be a bit-for-bit transfer as small differences could create problems. You can try cloning a temporary external disk and then replacing the internal one and then cloning back.
· Try using the disk repair utility
· Reset PRAM as this might contain some boot information
· Attempt changing the startup disk in System Preference as this could be the result of some firmware settings
· Erase all the partitions of the drive as the last resort by using the Disk Utility
Erasing or formatting the hard drive partitions mean that all your data has gone and this is the time to have Mac recovery. Data worth when this is significant from business point of view. So Mac data recovery needs productive source to happen.
Data recovery industry has benefited the users with data recovery Mac software which have the high scanning ability for the lost data. These Mac recovery utilities are easy to use and well in results.
Stellar Phoenix Macintosh Data Recovery software is the advanced Mac data recovery help, offered to scan the affected drive. This data recovery Mac application is found to be compatible with HFS, HFS+, HFSX and HFS Wrapper file systems. Through its read-only conduct, the software is viable to get safe Mac recovery.
Williamz Jack work as a freelancer and researcher of Data Recovery & File Recovery Software.
Article Source: Boot Options Change To ‘EFI Boot’ in Mac