CentOS7 vs CENTOS6

Source: Internet
Author: User


The CentOS Project has announced general availability of CentOS-7 and the first release of the free Linux distro based on the Source code for Red Hat Enterprise Linux (RHEL) 7.

It ' s also the first major CentOS release to ship since the CentOS Project entered into a new funding and co-development PA Rtnership with Red Hat in January.

Because CentOS-7 is built from the freely available RHEL 7 source code tree, it feature set closely mirrors that of Red H At the ' s latest OS, which shipped in June after a six-month beta period.

"CentOS conforms fully with Red Hat's redistribution policy and aims to has full functional compatibility with the Upstre AM Product, "The OS release notes explain. "CentOS mainly changes packages to remove Red Hat ' s branding and artwork."

Like RHEL 7, CentOS-7 are now powered by version 3.10.0 of the Linux kernel, with advanced support for Linux Containers and XFS as the default file system. It ' s also the first version of the CentOS to include the SYSTEMD management engine, the FIREWALLD dynamic firewall system, and The GRUB2 boot loader.

The default Java development Kit has been upgraded to OpenJDK-7, and the system now ships with Open VMWare Tools and 3D gr Aphics drivers out of the box.

Also like RHEL 7, this is the first version of the CentOS that claims to offer an In-place upgrade path. Eventually, users would be able to migrate from CentOS-6.5 to CentOS-7 without reformatting their systems–but unfortunate Ly, the tools needed to achieve this is still being tested and won ' t be made available until a later date.

For this release, the CentOS team launched a new build process, in which the entire distro are built from code hosted at th E CentOS Project ' s own Git repository. Source Code Packages (SRPMs) is created as a side-effect of the build cycle, however, and'll be hosted on the main Cent OS download serversalongside the corresponding binary packages.

"For the CentOS-7 build and release process we adopted a very open process," CentOS contributor Karanbir Singh said in a m Ailing list post announcing the release. "The output of the entire buildsystem is made available, as it's built, at Http://buildlogs.centos.org/–we Hope to Conti Nue with this process for the life of CentOS-7, and attempt bringing CentOS-5 and CentOS-6 builds into the same system. "

Disc images of centos-7–including separate builds for the Gnome and KDE desktops, a live CD image, and a network-install Able Version–are available beginning on Monday from the main centosdownload site and via BitTorrent.

Plans is underway to also make the OS available in other forms in the near future, including Docker images; Images for major cloud vendors, including Amazon, Google, HP, and RackSpace; Images with on-premises cloud platforms such as OpenStack and eucalyptus; and possibly an image for doing a minimal install.

Its been long that I had heard that CentOS 6.5 Kernel (section) is ' Too old ' as compared to CentOS 7 Kerne L (2013). ... Upgrade Centosto 6.5 not 6.6?

Between the varieties of CentOS there is five significant differences. Here's what CentOS 7 adds:

    • Docker Support, for using containers
    • Systemd, the controversial init replacement
    • Performance Co-pilot, a set of real-time frameworks and services for recording and monitoring system performance
    • Openlmi, a standard remote application programming interface (API)
    • XFS As the default file system

If you're moving from a CentOS 6 server to CentOS 7, being aware that there's no easy-to-do-it-migrate to XFS from the other Linux File systems, such as EXT4 or Btrfs. Instead, the best path was to back up and restore the server.

Unless you need one of the CentOS 7 ' s new features, stick with CentOS 6. It has a long, the proven track record.

By ' too old ' is probably meant, that it's too old. ItLinux 2 6 went live on Dec 3rd 2009. This was more then 5 years now.  Windows 7 OS is launched in, year and Mac OS X Snow Leopard is a new thing in. The kernel developers do support new devices, new gadgets and new architectures, but they does it within the up to date Kern El. The distro developers have to backport the new things into the old kernel, if they want to support them.
So first of all it means this by using 3.10 They does not has backport that much and also they is on the same architecture Base as the kernel head developers. In the benchmarks herehttp://www.phoronix.com/scan.php ...
It seems the most parameters the later kernels is same or a bit better. In some areas like graphic display performance they is quite better and they look more predictable in the performance .
If your device is fully supported by 2.6 kernels, you can be quite fine, because security fixes seems to be still availabl e See the updates here-the Linux Kernel Archives. If you had some newer stuff or just want to choose the easy-to-your desktop than 3.10 looks like a better choice . On the other side a ordinary desktop user, you probably does not care.

first of first, hardware support. For example, my Intel wireless-ac 7260 Wlan/bluetooth Adepter won't work as it driver became stable only at 3.10.

another thing is some filesystem features, i.e. SSD TRIM-for-XFS, JFS was IM plemented only around kernel 3.0 . An XFS feature named delayed logging which allowed improved overall disk performance is merged in Kernel 2.6.39 (CentOS 6 Uses 2.6.32).

These is the obvious ones which I encountered. More is available  by reading the kernel changelog. The Obvious-and published-thing you'll be able to does on CentOS 7 are to keep getting updates for security and    Other bugs fixes until 2024 (vs. 2020 for centos6.x).   As for ' too-old ', Red Hat engineers seem-think that the kernel in 6.x versions would be fine until 2020.  At least if it had drivers for your current Hardware-and they typically backport most newer drivers in updates. CentOS is rebuilt from the Red Hat source and so the same things apply.written view upvotes

CentOS7 vs CENTOS6

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

Tags Index: