1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Fedora 13 May Support Btrfs System Rollbacks

Fedora

Published on 20 November 2009 09:11 AM EST
Written by Michael Larabel in Fedora
7 Comments

Fedora 12 was just released this week, but features for Fedora 13 have been in planning long before this release made it out the door. In fact, it was last month that we began talking about features for Fedora 13. One of the features though that has just been proposed for Fedora 13 is rather interesting and that is system rollback support via Btrfs file-system snapshots.

While Btrfs is still under heavy development (though it has been in the mainline kernel for nearly a year) and it still has room for performance improvements, it does have a nice set of features like online volume growth, online defragmentation, transparent compression support, SSD optimizations, and copy-on-write snapshot support.

Chris Ball and Josef Bacik are looking to leverage the Btrfs snapshots support in Fedora 13 by introducing support for system rollbacks. Under their proposal, a yum plug-in would create a Btrfs snapshot before every yum transaction. Users could also create their own Btrfs snapshot at anytime. If one of the package upgrades has gone awry or another serious problem found, the user could reboot and select an earlier snapshot to boot. The Btrfs file-system snapshots are copy-on-write and non-destructive when rolling backwards and forwards between snapshots. However, this support wouldn't be ideal for an average end-user since they are snapshots of the entire file-system, thus inclusive of the /home/ directory by default. Switching back to an older Btrfs snapshot would also revert the user's data.

Implementing Fedora system rollback support via Btrfs snapshots would require patches to Palimpsest, yum, Btrfs, and GRUB. This work isn't done yet, so it might not make it into Fedora 13, but it's a real possibility that we will see this arrive with Fedora 13 early next year. Btrfs though will not be the default file-system in Fedora 13, so this feature will only be able to those that opt from using the default EXT4 file-system.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. Dead Island GOTY Now Available On Linux/SteamOS
  2. Ubuntu 14.04 In The Power8 Cloud From RunAbove
  3. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  4. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  5. Fedora 21 Beta & Final Release Slip Further
  6. Mesa 10.3.2 Has A Couple Bug-Fixes
  7. RadeonSI/R600g HyperZ Support Gets Turned Back On
  8. openSUSE Factory & Tumbleweed Are Merging
  9. More Fedora Delays: Fedora 21 Beta Slips
  10. Mono Brings C# To The Unreal Engine 4
Latest Forum Discussions
  1. Looking for a Open-Source AMD experienced Linux mentor
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. HOPE: The Ease Of Python With The Speed Of C++
  5. Use Ubuntu MATE 14.10 Make it an official distro.
  6. Debian Is Back To Discussing Init Systems, Freedom of Choice
  7. AMD Radeon VDPAU Video Performance With Gallium3D
  8. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release