Showing posts with label virtualization. Show all posts
Showing posts with label virtualization. Show all posts

Wednesday, March 14, 2012

On Mobile, Apps and the Cloud

The other day I heard about a bartender app for Android that seems to only have a lot of drink recipes and some tips&tricks.
So basically this is a book(let) made into an app.
Yawn.

Why are so many phone and tablet apps just stupid books or references?

Dear developer, you have a full phone/tablet at your disposal, meaning:
  • you know where you are (location)
  • you have the time, date, durations, ...
  • you have (more or less) full internet connectivity
So, e.g., for a cooking app, don't just tell me to do something for 5 minutes, start a freaking timer, and tell me when those 5 minutes are over!

With internet connectivity  you have unlimited compute power, currently called "the cloud". 
So please use it.
And not just by providing storage in the cloud (as cool as the HTC/DropBox deal is), use it for real computing.

Also, while we are at it: I venture a prediction:
Within less then 12 months, we will not only get free cloud storage with our phone, there will also be offerings for a free cloud-hosted virtual machine with your tablet.
So then, you'll get your Windows 7 or 8 PC as a VM and just use it from your tablet.
I'm pretty confident on this.

Thursday, May 20, 2010

VirtualBox 3.2 released

Apart from the kind of obligatory yearly re-branding attempts[1] by the respective new owner, VirtualBox finally comes with some cool new features...

  • Latest Intel hardware support
  • Large Page support
  • In-hypervisor Networking
  • New Storage I/O subsystem
  • Remote Video Acceleration
  • Multiple Virtual Monitors
  • Hot-plug CPU's
  • Virtual SAS Controller
  • Online Snapshot Merging
Details and explanations here, download here.
and, as they guys from ElReg say in their article,

With VirtualBox 3.2 (and no one is ever going to call it Oracle VM VirtualBox, so let's get that straight), the software engineers have tweaked the type 2 (meaning hosted) hypervisor so it can run on all the latest "Westmere" variants of Intel's Core i5 and i7 processors for desktops and the Xeon 5600s for servers and high-end workstations.

VirtualBox 3.2 also sports acceleration for the Remote Data Protocol if you are using a Windows 7 client in a VM, and the hypervisor can emulate an LSI Logic SAS controller for storage as well, which is common in high-end x64 workstations and entry servers and midrange x64 servers.

VirtualBox supports just about any x64 operating system you can imagine: Windows NT all the way back to 4.0 and Windows all the way back to 3.0, plus DOS, OS/2, Linux 2.4 and 2.6, Solaris, and BSD Unix - and now Oracle Enterprise Linux 5.5 and Canonical Ubuntu 10.04 are added to the long list.

So, away with the just-installed v3.1.8 and lets got 3.2...
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[1] Sun Virtualbox, Sun xVM Virtualbox, Oracle VM VirtualBox, ... come to mind

Tuesday, July 14, 2009

XP/centrino crashes under Vbox 3.02

Just installed the newly released VirtualBox 3.02 today, and my (guest) XP started to crash after I de-installed the "old" (2.2.x) guest additions and installed the 3.02 additions.
Turned out that this is a known windows virtualization problem on Centrinos [1] like documented here.

So I rebooted (for the umpteenth time), F8-ed and selected the last known working settings, regedited the

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm

to the value 4.

Rebooted, and voila... works again.


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[1] yes, this was on my beloved laptop.

Saturday, April 18, 2009

24 bit RDP under Windows XP

Just recently during (probably my last) Sunray/VDI demo installation I ran into the problem that we could not get 24bit color depth on the virtualized Windows XPs.

The SunRay part of the installation (i.e. the Desktop Unit (DTU, aka. ThinClient) itself could not be the problem, because they always are 24bit (incl their respective X session on the SunRay Server),
we also ran the RDP client (uttsc) with the -A 24 option to force it to 24bit (which it would default to anyway) ... but to no avail.

Of course as always google is your friend; several people have posted and blogged this already: under Windows XP you have to explicitely enable 24bit for RDP. So in the Windows XP image (or template) open the registry and change

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\ColorDepth

to the value 4.
Not sure if you have to reboot the virtual machine (VM) then, but since rebooting a virtualized XP is quite fast anyway, just reboot it...

Saturday, February 07, 2009

VirtualBox networking on Windows

I guess this was the third time I fell into this trap, so I document it here (mainly for myself):

As long as you have any kind of LAN type interface/adapter active under Windows VirtualBox will try to use this[1] to do its networking (NAT in my case). This is true for LAN/Ethernet as well as WLAN/Wifi.
This also happens quietly, so you don't get an error message (from VBox), just the errors from the guest OS, usually DNS errors, because thats likely the first thing to fail.

In my case I frequently run on 3G/HSPDA only, but still have an active (yet disconnected) LAN and WiFi interface. In order for VirtualBox to work properly, those two have to be disabled.

Annoying...
Hope I remember it next time.

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[1] or so it seems.

Saturday, August 09, 2008

Wednesday, February 13, 2008

Saturday, January 26, 2008

Vista consumer virtualization ban lifted

Finally Microsoft gave up and - contrary to what I reported before - now DOES allow all Vista Editions on virtualization platforms:

Microsoft relents: Vista consumer virtualization ban lifted:
"It only took them a year longer than it should have, but Microsoft has finally relented and approved the use of Windows Vista Basic and Premium Edition in virtualized environments, for both 'consumers' and business users. Among other things, the change means that Mac and Linux users can now run Windows Vista in a VM without having to pay for the more expensive Business or Ultimate editions. This is a boon to anyone who needs virtualized environments for testing and development."

Wednesday, January 16, 2008

No cheap Vista for Desktop Virtualization?

I just got a pointer to this litte know fact (at least I did not know it) from the VMware site:

Microsoft Virtualization Licensing and Distribution Terms - VMware: "Restrictions on Virtualization and Vista:
Microsoft has recently announced a prohibition on virtualizing the less expensive versions of Vista (Vista Home Basic and Vista Home Premium). Microsoft’s explanation has been that virtualization is not broadly usable by consumers or other mass market users, and therefore should be restricted only to the more expensive versions of Vista"
This means that you cannot use a cheaper version of Vista for desktop virtualization (VDI) ...

And this in return means, that Microsoft is afraid of VDI. That simple.

Wednesday, August 15, 2007

Citrix to buy XenSource

The week of (HW) virtualization (companies) ?

Hm, too many brackets for a good title, ... anyway, just hours (ok, I'm still exaggerating) after the VMware IPO, Citrix (of all) announced that they are to by XenSource, maker of Xen, which is a rival to VMware and favored by like half of the techies. It's one of those tech-religious things, I guess.

Citrix to buy virtualization company XenSource for $500 million | Tech news blog - CNET News.com: "Citrix to buy virtualization company XenSource for $500 million"

I wonder, why Sun haven't bought them....