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Wednesday, 10 March 2010
What command can you use to review boot messages?
Courtesy: Navdeep Singh  
The dmesg command displays the system messages contained in the kernel ring buffer. By using this command immediately after booting your computer, you will see the boot messages.

DMESG: 

dmesg (for "diagnostic message") is a command on Unix-like operating systems that prints the message buffer of the kernel. This buffer contains a variety of important messages from those printed during boot to those used for debugging software. This information may also be stored to disk via a logging daemon, such as syslog.

 
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Special Note
In 1991, Linus Torvalds began to work on the Linux kernel while he was attending the University of Helsinki. Torvalds originally created the Linux kernel as a non-commercial replacement for the Minix kernel; he later changed his original non-free license to the GPLv2, which differed primarily in that it also allowed for commercial redistribution. Linux filled the last major gap in running a complete, fully functional free operating system.
 
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