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Confirmed: Microsoft and Canonical Partner To Bring Ubuntu To Windows 10 (zdnet.com)
Steven J. Vaughan-Nichols reports for ZDNet: According to sources at Canonical, Ubuntu Linux's parent company, and Microsoft, you'll soon be able to run Ubuntu on Windows 10. This will be more than just running the Bash shell on Windows 10. After all, thanks to programs such as Cygwin or MSYS utilities, hardcore Unix users have long been able to run the popular Bash command line interface (CLI) on Windows. With this new addition, Ubuntu users will be able to run Ubuntu simultaneously with Windows. This will not be in a virtual machine, but as an integrated part of Windows 10. [...] Microsoft and Canonical will not, however, sources say, be integrating Linux per se into Windows. Instead, Ubuntu will primarily run on a foundation of native Windows libraries. Update: 03/30 16:16 GMT by M : At its developer conference Build 2016, Microsoft on Wednesday confirmed that it is bringing native support for Bash on Windows 10. Scott Hanselman writes: This isn't Bash or Ubuntu running in a VM. This is a real native Bash Linux binary running on Windows itself. It's fast and lightweight and it's the real binaries. This is a genuine Ubuntu image on top of Windows with all the Linux tools I use like awk, sed, grep, vi, etc. It's fast and it's lightweight. The binaries are downloaded by you - using apt-get - just as on Linux, because it is Linux. You can apt-get and download other tools like Ruby, Redis, emacs, and on and on. This is brilliant for developers that use a diverse set of tools like me.
I guess the point is that you don't need the kernel or drivers because the Windows kernel can actually provide the necessary services. You might want user-space utilities, obviously. But a way of running Whatever-ix userspace apps on Windows would be rather nice. No more weird/costly ports of UI toolkits?
Ezekiel 23:20
Many reasons that some run Ubuntu has a guest on Windows is their PC came with a OEM windows license that you cannot transfer to the VM. So you could not get rid of Windows as the Host OS, install Ubuntu, and then run Windows in the VM with the OEM license you already have. If your PC came with Windows, even if you deleted that copy, you would have to buy a new license to run Windows in a VM.
Ironically, there's no actual Linux (as in the kernel) to be found here. Just userspace stuff.
I suppose one thing I could think of is for ease of porting/cross-platform development. If you have a Windows developer who needs to either write or port an application to support Linux systems, then this might be a convenient solution. I can't imagine that this is really targeted at anyone other than developers. I mean, if a user was interested in running Ubuntu, then as you indicated, they'd just run that OS directly rather than on top of Windows 10.
Keep in mind that Microsoft is focused on cloud and services now, but they also want to keep Windows relevant as a development platform, because that's needed to ensure that developers can easily integrate Microsoft cloud services into their products. That's why they've gone to great lengths to give Visual Studio multi-platform capabilities. You've also seen them take steps in the same direction but with a different tact - porting their own libraries and apps to different platforms.
So, I don't believe the primary point of this is to keep Windows 10 relevant. Windows already has a virtually unbreakable lock on the desktop OS market. If anything, this slightly weakens Windows by providing easy access to a competing OS. My feeling is that this is a move to keep Visual Studio and the Microsoft Azure cloud ecosystem relevant by giving developers an easy way to create and test cross-platform applications using Microsoft-provided tools.
Irony: Agile development has too much intertia to be abandoned now.
Here is a better - somewhat more technical - write-up from Ubuntu folks.