Language Selection

English French German Italian Portuguese Spanish

Linux 5.5+ Development

Filed under
Linux
  • GRUB Now Supports Btrfs 3/4-Copy RAID1 Profiles (RAID1C3 / RAID1C4 On Linux 5.5+)

    When it comes to the storage/file-system changes with the in-development Linux 5.5 kernel one of the most prominent end-user-facing changes is more robust RAID1 for Btrfs with the ability to have three or four copies of the data rather than just two copies, should data safety be of utmost importance and concerned over the possibility of two disks in an array failing.

    The Btrfs "RAID1C3" mode was merged last week for this three/four-copy RAID1 while now the GRUB boot-loader has adapted support for these new profiles in order to be able to boot to said arrays.

  • Linux 5.5 Adds NFS Client Support For Cross-Device Offloaded Copies (Server To Server)

    With NFSv4.2 is the server-side copy (SSC) functionality with the Linux 5.5 kernel's NFS client-side support for that support in allowing "inter" copy offloads between different NFS servers.

    This support allows for server-to-server efficient file copies with NFSv4.2 SSC rather than first having to copy to the client system. The NFS client changes also introduce new RDMA tracepoints for debugging congestion control and various other fixes.

  • Linux 5.5 KVM Adds POWER Support For Secure Guests/VMs

    IBM's work from over a year ago in working towards secure virtual machines on POWER hardware is finally coming to fruition with Linux 5.5 due out early next year.

    After those original Secure Virtual Machine POWER9 patches were posted last year, the ultravisor / secure bits landed in Linux 5.4 in preparing the foundation. As explained in that earlier article, "The Ultravisor / SVM support is part of IBM's approach for protected computing that is akin to the approaches of Intel SGX and AMD Secure Encrypted Virtualization (SEV). IBM's Ultravisor code runs with higher privileges than the virtualization hypervisor and in turn the virtual machines rely upon IBM Protected Execution for verifying the behavior of the hypervisor/ultravisor."

More in Tux Machines

Getting Started with Raspberry Pi Pico using MicroPython and C

Raspberry Pi Pico board was just launched last Thursday, but thanks to Cytron I received a sample a few hours after the announcement, and I’ve now had time to play with the board using MicroPython and C programming language. I went to the official documentation to get started, but I had to look around to achieve what I wanted to do, namely blinking some LEDs, so I’ll document my experience with my own getting started guide for Raspberry Pi Pico using a computer running Ubuntu 20.04 operating system. The instructions will be similar for Windows and Mac OS. Read more

Tiny Core Linux Installation and Review

The OS architectures supported by Tiny Core Linux are x86. X86_64, and ARM processors. It may not be a complete package for a functional Linux distro or flavor, but the freedom and flexibility it offers is out of the box. Under Tiny Core Linux, you get to push your OS around rather than your OS pushing you around like in other platforms. The speed and simplicity under this Linux distro cannot be substituted. Moreover, the absence of a Desktop environment distractions under its user experience is another plus. It gifts you the perfect tinkering experience due to its lightweight nature. Read more

PinePhone news roundup (1-24-2021)

It’s been a busy week for PinePhone hardware and software developers. If you’ve been following LinuxSmartphone on Twitter you may have noticed that developers have made progress in making several different Linux distributions more usable, while other developers have been working to bring open source firmware to the PinePhone’s modem. The PinePhone KDE Community Edition has also begun shipping recently, the Mobian Community Edition model is up for pre-order. And the official keyboard add-on is coming along nicely, as is the semi-official fingerprint reader accessory. Read more

Xfce’s Thunar File Manager Gets Split View, File Creation Times, and More

Thunar 4.17 is here as the first milestone towards the next major release that will be part of the upcoming Xfce 4.18 desktop environment, which is now in early development. I know many of you love and use Thunar, so here’s a look at the major new features coming to your Xfce desktop environment. The big news is that Thunar now finally features a split view, allowing you to use the file manager as a dual-pane file explorer/commander. I bet many of you were hoping for this feature, so here it is and you’ll be able to use soon on your Xfce desktop, hopefully later this year. Read more