Simon Willison’s Weblog


13 items tagged “virtualization”


Lima VM—Linux Virtual Machines On macOS (via) This looks really useful: “brew install lima” to install, then “limactl start default” to start an Ubuntu VM running and “lima” to get a shell. Julia Evans wrote about the tool this morning, and here Adam Gordon Bell includes details on adding a writable directory (by default lima mounts your macOS home directory in read-only mode). # 10th July 2023, 7:01 pm

Why We Replaced Firecracker with QEMU (via) Hocus are building a self-hosted alternative to cloud development environment tools like GitPod and Codespaces. They moved away from Firecracker because it’s optimized for short-running (AWS Lambda style) functions—which means it never releases allocated RAM or storage volume space back to the host machine unless the container is entirely restarted. It also lacks GPU support. # 10th July 2023, 3:09 pm


Amazon takes EC2 to the next level with persistent storage volumes. You can store a snapshot of a storage volume to S3 with a single API call, making backups trivial. # 14th April 2008, 8:04 am

EC2: Introducing Elastic IP Addresses and Availability Zones. Big news from Amazon: EC2 can now provide static IP addresses which you can dynamically map to one of your instances, along with “availability zones” so you can specify that instances run in different data centres. Hosting an entire application on EC2 just got a whole lot more practical. # 27th March 2008, 10:33 am


Django GridContainer. Media Temple’s virtualized Django hosting is now accepting applications for beta testers. # 22nd September 2007, 12:01 pm

VMware Fusion Review (via) It looks like VMware are finally catching up with Parallels. # 6th August 2007, 11:49 pm

How to convert a VMWare virtual appliance to work with Parallels. Anyone know the best option for creating a virtual machine that can easily be used by Parallels and VMWare alike? # 28th June 2007, 10:23 am

VirtualBox. GPL licensed virtualization software; they recently released an OS X version. # 8th May 2007, 9:35 pm

Internet Explorer Application Compatibility VPC Image (via) Microsoft have made free VPC images of IE 6 and IE 7 available for testing, but they expire in August. # 20th April 2007, 4:47 pm

JPC (via) Pure Java emulation of an x86 PC, running at 10% native speed. No code to download yet, but there’s a neat applet that lets you play Lemmings (and other games) running on FreeDOS. # 25th March 2007, 5:06 pm

[...] I’m a fan of the virtual machine future. We should treat our operating system like a roll of paper towels. If you get something on it you don’t like, you ball it up and throw it away, and rip off a new, fresh one.

Jeff Atwood # 2nd March 2007, 10:21 am

Linus Torvalds: Super Kernel Sunday! Linux kernel version 2.6.20 is out, and includes virtualization thanks to KVM. # 4th February 2007, 10:32 pm


VMWare Fusion (virtualization for Mac). Competition is good. The race is on between VMWare and Parallels as to who can get 3D acceleration virtualized first (and let me play Half-Life 2 without using BootCamp). # 24th December 2006, 12:49 pm