Fedora os: Difference between revisions
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>>For Linux: | >>For Linux: | ||
<code>$ sha256sum -c *CHECKSUM | <code>$ sha256sum -c *CHECKSUM | ||
</code> | |||
For OSX: | |||
<code> | <code> | ||
$ shasum -a 256 -c *CHECKSUM | $ shasum -a 256 -c *CHECKSUM | ||
</code> | </code> | ||
===Preparing Boot Media=== | |||
Revision as of 20:17, 8 May 2017
Fedora OS
Fedora is an operating system based on Linux kernel and GNU programs, developed by the community-supported Fedora Project and sponsored by Red Hat.Fedora contains software distributed under a free and open-source license and aims to be on the leading edge of such technologies.Fedora Core 1 was the first version of Fedora and was released on November 6, 2003.If anyone has experience using other linux distributions like ubuntu then running Fedora shouldn't be a problem for them .
Features
Fedora has a reputation for focusing on innovation, integrating new technologies early on and working closely with Linux communities.[1] Making changes upstream instead of specifically in Fedora ensures that the changes are available to all Linux distributions.
Fedora has a relatively short life cycle: version is supported only until 1 month after new version X+2 is released and with approximately 6 months between most versions, meaning a version of Fedora is usually supported for at least 13 months, possibly longer.[2] Fedora users can upgrade from version to version without reinstalling.[3][4]
The default desktop environment in Fedora is GNOME and the default user interface is the GNOME Shell. Other desktop environments are available too and can be installed.[5][6]
Package management
Fedora uses the RPM Package Manager package management system. Flatpak is also supported by default, and support for Ubuntu's Snappy package manager format can also be added. Fedora uses Delta RPM when updating installed packages to provide Delta update. A Delta RPM contains the difference between an old and new version of a package. This means that only the changes between the installed package and the new one are downloaded reducing network traffic and bandwidth consumption.
Security
Security is very important in Fedora with one specific security feature being Security-Enhanced Linux, which implements a variety of security policies, including mandatory access controls, which Fedora adopted early on.[7] Fedora provides hardening wrapper, and does hardening for all of its packages by using compiler features such as position-independent executable (PIE).[8]
Software
Fedora comes installed with a wide range of software such as LibreOffice and Firefox. Additional software is available from the Software repository and can be installed using the package manager or GNOME Software.
Additionally, extra repositories can be added to the system, so that software not available in Fedora can be installed more readily.[9]Template:Rp Software that is not available via official Fedora repositories, either because it doesn't meet Fedora's definition of free software or because its distribution may violate US law, can be installed using third-party repositories. Popular third-party repositories include RPM Fusion free and non-free repositories. Fedora also provides users with an easy-to-use build system for creating their own repositories called Copr.[10]
Editions
Beginning with Fedora version 21,[11] it is available as three distinct primary editions:
- Fedora Workstation – It targets users who want a reliable, user-friendly, and powerful operating system for their laptop or desktop computer. It comes with GNOME by default but other desktops can be installed or can be directly installed as Spins.
- Fedora Server – Its target usage is for servers, and it includes the latest data center technologies. This edition doesn't come with a desktop environment, but one can be installed.
- Fedora Cloud – It provides a minimal image of Fedora which includes just the bare essentials. It is meant for deployment in cloud computing. It also provides Fedora Atomic Host images which are optimized minimal images for container uses.
A Live USB drive can be created using Fedora Live USB creator or the Unix command.[9]Template:Rp It allows the users to try Fedora without making changes to the hard disk.
Spins
Similar to Debian blends, the Fedora Project also distributes custom variations of Fedora called Fedora spins or editions.[12] These are built with specific sets of software packages, offering alternative desktop environments or targeting specific interests such as gaming, security, design, education,[13] robotics,[14][15] and scientific computing[16] (that includes SciPy, GNU Octave, Kile, Xfig and Inkscape. Fedora spins are developed by several Fedora special interest groups.[12] Fedora also provides a Fedora Atomic Host image for Project Atomic, which is Red Hat's solution for deploying Docker-based containerized applications.[17]
Architectures
Intel i686, AMD x86-64 and ARM architecture are the primary architectures supported by Fedora.[18] Pidora[19] and FedBerry[20] are specialized Fedora distributions for the Raspberry Pi. As of release 25, Fedora also supports ARM AArch64, IBM Power64le, and RISC-V as secondary architectures.
Installation Guide
Upgrade or Install?
If you already have Fedora installed and want to upgrade your installation to the current version, there are two basic ways to do so: Automatic upgrade using dnf system upgrade The preferred way to upgrade your system is an automatic upgrade using the dnf system upgrade utility.
Manual Reinstallation : You can upgrade to the latest version of Fedora manually instead of relying on dnf system upgrade. This involves booting the installer as if you were performing a clean installation, letting it detect your existing Fedora system, and overwriting the root partition while preserving data on other partitions and volumes. The same process can also be used to reinstall the system, if you need to.
Downloading Boot and Installation Images
The Fedora Project offers different flavors tailored for some specific use cases. Choose the Fedora flavor best for you, or you can build your own by customizing after the installation, or by using a kickstart file . Kickstart installation requires the netinstall media type, or a direct installation booting method such as PXE; kickstarts are not supported with live images.
You can also choose a Fedora Spin featuring favorite alternative desktops or tools for specialized tasks at http://spins.fedoraproject.org.
Verifying the Downloaded Image
Because transmission errors or other problems may corrupt the Fedora image you have downloaded, it is important to verify the file's integrity. After the images are created, an operation is performed on the file that produces a value called a checksum using a complex mathematical algorithm. The operation is sufficiently complex that any change to the original file will produce a different checksum. By calculating the image's checksum on your own computer and comparing it to the original checksum, you can verify the image has not been tampered with or corrupted. The original checksum values are provided at https://fedoraproject.org/verify, and are gpg signed to demonstrate their integrity.
Verifying checksums on Windows systems
1. Download the Fedora image of your choice from https://fedoraproject.org/get-fedora and the corresponding checksum file from https://fedoraproject.org/verify 2. Open a powershell session. 3. Change to the directory containing the downloaded files.
> cd $HOME\Downloads\
> ls
Directory: C:\Users\your user name\Downloads
4. Load the resources required to calculate the checksum.
> $image = "Fedora-Server-DVD-x86_64-21.iso"
> $checksum_file = "Fedora-Server-21-x86_64-CHECKSUM"
> $sha256 = New-Object -TypeName System.Security.Cryptography.sha256CryptoServiceProvider
> $expected_checksum = ((Get-Content $checksum_file | Select-String -Pattern $image) -split " ")[0].ToLower()
5. Calculate the downloaded image's checksum. This will take a while!
> $download_checksum = [System.BitConverter]::ToString($sha256.ComputeHash([System.IO.File]::ReadAllBytes("$PWD\$image"))).ToLower() -replace '-',
6. Compare the calculated checksum to the expected checksum.
> echo "Download Checksum: $download_checksum"
> echo "Expected Checksum: $expected_checksum"
> if ( $download_checksum -eq "$expected_checksum" ) {
echo "Checksum test passed!"
} else {
echo "Checksum test failed."
}
Verifying checksums on Linux and OSX systems
1.Download the Fedora image of your choice from https://fedoraproject.org/get-fedora and the corresponding checksum file from https://fedoraproject.org/verify
2.Open a terminal window, and navigate to the directory with the downloaded files.
$ cd ~/Downloads
3.Use the appropriate utility to verify the image checksum.
>>For Linux:
$ sha256sum -c *CHECKSUM
For OSX:
$ shasum -a 256 -c *CHECKSUM
