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I google and found that people also do security updates using yum, so my question is do we really need to upgrade the kernel from 3. I able to compile the CentOS 7 kernel from 3. Now my question is that to keep our os safe and to avoid new vulnerabilities we are doing yum -y update every 1 month time. Can we still able to do yum -y update or install new software? Yes, you can run yum -y update command even after multiple versions of Kernel installed on the same system.. I think the easier and safest way to install new Kernel is using ELRepo only, as it offers an easy way of upgrade when new kernel releases….
Installing Kernel from the source is hard because you need to manually compile modules as per your requirements, also it time-consuming process…. Have a question or suggestion?
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Notify me of followup comments via e-mail. Unfortunately, centos7 almost always shows that the package does not exist and the article is invalid. Your email address will not be published. Skip to content CentOS 7 is a very stable and conservative operating system.
The collection aims at Multiple version installed of the same components, you can have multiple GNU GCC installed without breaking your system or compiling manually. This is free software; see the source for copying conditions. Sometimes you need drivers for hardware that isn't supported by the new kernel by default, or you need support for virtualization techniques or some other bleeding-edge technology that hasn't made it to the kernel yet.
In all these cases you have to patch the kernel sources provided there is a patch available Now let's assume you have downloaded the needed patch I call it patch. The first command is just a test, it does nothing to your sources.
If it doesn't show errors, you can run the second command which actually applies the patch. Don't do it if the first command shows errors! If your patches are compressed with gzip. You can also apply kernel prepatches to your kernel sources. For example, if you need a feature that is available only in kernel 2. Instead, a patch You can apply that patch to the 2.
Prepatches are the equivalent to alpha releases for Linux; they live in the testing directories in the archives. They should be applied using the patch 1 utility to the source code of the previous full release with a 3-part version number for example, the 2. So if you want to compile a 2. It's a good idea to use the configuration of your current working kernel as a basis for your new kernel.
Go to Load an Alternate Configuration File and choose. Then browse through the kernel configuration menu and make your choices. I use -default so our kernel rpm package will be named kernel You can leave the string empty or specify a different one which helps you identify the kernel e. Please note: After you have installed kernel When you are finished and select Exit , answer the following question Do you wish to save your new kernel configuration?
Now be patient, the kernel compilation can take some hours, depending on your kernel configuration and your processor speed. After the successful kernel build, a src.
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