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Question: What is kernel updation?

Answer: kernel updation is a process of to upgrade the kernel file with a new or latest version of kernel & use of them as a default kernel.

kernel updation is a process of to upgrade the kernel file with a new or latest version of kernel & use of them as a default kernel. Source: CoolInterview.com

Kernel updation is upgrading kernel version. To update kernel either you can enroll yourself to the official website of red hat or you can simply download the latest kernel version and then running rpm -u kernel version. But this method is not recommended, it is better to install the new kernel and let the older version of it remain untouched so that you can revert back the changes. Source: CoolInterview.com

kernel updation means we are upgrading a kernel with a latest one you can do this via
yum update <kernel rpm file>
or
rpm -Uvh <kernel rpm file> Source: CoolInterview.com

kernel updation is using new and better updated kernel.
we can install the kernel and change the default settings in /etc/grub.conf and new kernel as default kernel. Source: CoolInterview.com

But this method is not recommended , it is better to install. the Kernel file with a new or latest version of Kernel &use of them as a default Kernel. Source: CoolInterview.com

Kernel exudationthe kernel file with a new or latest version of kernel & use of them as a default kernel. is upgrading kernel version. To update kernel either you can enroll yourself to the official website of red hat. Source: CoolInterview.com

for upgrading kernel

rpm -ivh package name .
..kernel cannot be upgraded by -uvh ..it is for other packages except kernel upgrade:) Source: CoolInterview.com

<b>Kernel Update:</b>

Improvements to existing kernels are released & distributed as kernel updates (new releases or patches) The process of upgrading our running kernel to this new release or any other stable version is known as Kernel Update.
The kernel's of specific distributions are given by their respective owners. the original kernel released by community can be found here: kernel.org.

This process is also called as <b>kernel compilation</b>, when we compile the kernel from source code. to know how see http://kernelnewbies.org

<b>Why need an update?</b>
A Linux Kernel is nothing but a complex data structure. so as soon as security holes are detected, it is fixed, or expand the data structure to support more hardware (say more RAM support), or to update the international standards, or algorithm improvements for scheduler, memory management, processor capabilities, etc.., and many more reasons for which the international open source community is consistently working to fix the above issues, as part of this process, at certain stages (called milestones), they release the kernel source code or simply the patches (contains difference between a certain kernel version & the latest one) in http://kernel.org

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Thanks,
Linux Pithan Source: CoolInterview.com

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