Tag Archives: ubuntu

Customizing ubuntu phone: terminal top keyboard row

Posted on December 21, 2019 by s3hh

This is one of those “for my own reference on my next (pine) phone” posts, but anyone using ubuntu phone (ubports.com) may find it useful. I use mutt (in a libertine ‘container’) on the ubuntu phone for sending email. The … Continue reading →

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Using lxd snapshots

Posted on May 8, 2016 by s3hh

Lxd with zfs is fast. Very fast. Yesterday I was testing a package upgrade problem. Purging and re-installing the package was not good enough to reproduce it. So, 1. create a base container lxc launch ubuntu:xenial lv1 That takes about … Continue reading →

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LXD 0.3

Posted on March 12, 2015 by s3hh

LXD 0.3 has been released. This version provides huge usability improvements over past versions. Getting started Here’s an example of quickly getting started on a fresh Ubuntu 15.04 VM: sudo add-apt-repository ppa:ubuntu-lxc/lxd-daily sudo apt-get update sudo apt-get install lxd sudo … Continue reading →

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Introducing lxcfs

Posted on February 23, 2015 by s3hh

Last year around this time, we were announcing the availability of cgmanager, a daemon allowing users and programs to easily administer and delegate cgroups over a dbus interface. It was key to supporting nested containers and unprivileged users. While its … Continue reading →

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Live container migration – on its way

Posted on October 14, 2014 by s3hh

The criu project has been working hard to make application checkpoint/restart feasible. Tycho has implemented lxc-checkpoint and lxc-restart on top of that (as well as of course contributing the needed bits to criu itself), and now shows off first steps … Continue reading →

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libvirt defaults (and openvswitch bridge performance)

Posted on August 28, 2013 by s3hh

The libvirt-bin package in Ubuntu installs a default NATed virtual network, virbr0. This isn’t always the best choice for everyone, however it “just works” everywhere. It also provides some simple protection – the VMs aren’t exposed on the network for … Continue reading →

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Qemu updates in raring

Posted on March 11, 2013 by s3hh

The raring feature freeze took effect last week. What’s been happening with qemu in the meantime? A lot! I’ll touch on the following main changes in this post: package reorg, spice support, hugepages, uefi, and rbd support. * package reorg … Continue reading →

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Call for testing: new qemu packages for raring

Posted on December 9, 2012 by s3hh

tl;dr If you use qemu, kvm, or qemu-user in raring, please test the candidate packages in ppa:serge-hallyn/crossc. Background The qemu and kvm projects historically had somewhat different code bases with some different features and advantages. For years they have been … Continue reading →

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ecryptfs-backed containers

Posted on September 6, 2012 by s3hh

During this cycle, the lxc package gained the ability to call ‘hooks’ at various points of a container’s life cycle. Just today, a new hook point was added to the quantal package, which supports a simple use of ecryptfs backed … Continue reading →

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Nested kvm guests

Posted on January 19, 2012 by s3hh

Yesterday, the right honorable James Page asked whether nested kvm was supported. It’s been long supported on AMD, but for a long time the answer has been “check back later” for Intel. I hadn’t checked in a while though, so … Continue reading →

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