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linux system

Q. How do I know when I need to update my Linux system? How do I know new patches are available for CentOS Linux (Red Hat) / Debian Linux server system?
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Reboot Linux System Command

How do I reboot my Linux based system? How do I reboot a remote Linux system or server using command line?
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Q. How do I set the real time scheduling priority of a process under Linux operating system using a shell prompt?
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Q. Is There a UNIX / Linux unerase or undelete command? How do I undelete files under a UNIX / Linux system?
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Q. Before I can start using IPv6 on a Linux server, how do I test, whether my Linux server system is IPv6 ready or not? If not, how do I enable IPv6 support under Redhat Enterprise Linux version 5?
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I just need a help to show me how to setup java path on Linux. How can I set JAVA_HOME and PATH variables for every user under my Linux system?
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Does Linux grub replace Windows MBR?

Q. I’m willing to try out Ubuntu Linux but my question is Does Linux grub replace Windows MBR? Can I dual boot between Windows and Linux system?

A. Yes when you install GRUB on first partition, windows MBR get replaced. In most cases GRUB automatically adds an entry for Windows XP / Vista so that you can enjoy dual booting out of box after Ubuntu Linux installation.

In case if you made any mistakes while performing Linux installation you can restore GRUB.

I recommend making a backup of all important data / files before making any changes to MBR / file system or operating system or Ubuntu Linux installation.