Archive for August, 2013

hyper-v: vhd vs vhdx, dynamic vs fixed

Over the last week I’ve installed win8 about 10 times trying to get the right combination. Some things I’ve found out:

  • use vhd, 32-bit and memory less than 2048Mb if you want your drive to run on virtualpc – however I never got mine working and I tried creating it on virtualpc and going over to hyper-V on win8, as well as the other way round
  • for 4G RAM, my win8pro installation needed at least 24Gb, otherwise it ran out of space on a fixed drive. right now I am using 60Gb dynamic drive
  • it says that fixed drives are faster than dynamic. however there are studies out there that show dynamic can be faster than fixed and that the differences are not huge. go dynamic – it saves you a lot of time
  • if you want to install virtual machine and disk on an external drive and want to encrypt it, truecrypt does not work – use bitlocker. bitlocker works across win7 as well as win8. however sometimes if you install a fixed drive with an external cd drive, then my dell xps12 lost the handle to both external drives and then got into a terrible state thinking the external drive was corrupted
  • if you don’t have a week to spare, use dynamic drives, not fixed. dynamic drives format right away, whereas fixed take time (which opens up the problem described above
  • do not use fixed and then convert to dynamic – it does not work. nor does creating a new dyanmic drive and copying it
  • install the build (custom, rather than update – update does not work), boot into windows, then rerun the setup.exe. at some point it should ask to download updates (to the install process). that should allow you to install the 54 updates… btw you know this has worked as it should now tell you how much it is downloaded more frequently than 1 update after 20 minutes… it takes 30 minutes to download the 54 updates over a 100MB/s connection and 1 hour to install. Once installed, shut down and copy/paste the vdhx to get a copy.
  • when installing updates make sure you dont install all 55 at the same time (if using build 9200 on 25 August). also if you don’t know the hack about deleting “software distribution” directory – learn it. If you do want to install all 55, then be prepared for windows to not look like it is doing anything for 30 minutes. All told, I would go through cycles of 2 hours with updates, only to find it fail at the last point
  • if you do hit problems, then the windows update troubleshooter is very useful. aftre running, you can install a new patch rightaway, without having to restart
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    Posted by admin - August 25, 2013 at 16:13

    Categories: Mobile Living, Tech, Win8   Tags:

    Hyper-V on vmplayer

    I’ve been trying out some combinations of virtualism.

    First, the easiest to use is Oracle’s VirtualBox is the easiest to use and is pretty robust. Networking and file sharing is a doddle – unlike some of the other solutions.

    Then I use vmplayer, as it is our company standard on our win7 laptops. Really great feauture here is shared folders, but remember to install the extensions before they work properly. (If you cannot see the folders, look in networks).

    Finally I use Hyper-V on my win8 laptops. Pass-thru networking and “shared folders” are pretty hard to set up. However by double clicking on the vhdx file, it creates a drive on the host that you can use (so sort of shared folders).

    Some other notes:
    1. Hyper-V does not exist on win7
    2. Hyper-V on vmplayer win8 does not allow you to create/import VMs (you need to be on top of a physical processor), so you just get a connect to option

    Hyper-V on vmplayer

    Hyper-V on vmplayer

    Hyper-V on win7

    Hyper-V on win7

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    Posted by admin - August 19, 2013 at 21:18

    Categories: Nokia Development, Tech, WP8   Tags:

    Detach or disconnect user from domain

    I have a patriot gauntlet node. Nice bit of kit, allows you to share your 2.5 inch HDD via g wifi using its own ssid, with pass through to your traditional wifi. It was not working on my win7 work laptop even though it had the right security authentication (see end). I then ran win7 virtual image with VMplayer and that worked fine.

    I decided the only difference was the domain membership. So I deleted it. That was a mistake.

    I could still log on through the sophos safeguard with my domain password, even though it was not connected to the Internet. However on the win login screen I then hit the problem that I could not use domain login (I had assumed it would have cached the credentials and profile).

    I am assuming to fix we just need to connect it back to the domain (will be an interesting and relaxing first day of my vacation going back to work to fix that). I am really hoping that it realises I have logged on before and does not trash my local files. I will report back.

    Meantime that fix for samba authentication on win7:
    Control Panel – Administrative Tools – Local Security Policy

    Local Policies – Security Options

    Network security: LAN Manager authentication level
    Send LM & NTLM responses

    Minimum session security for NTLM SSP
    Disable Require 128-bit encryption

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    Posted by admin - August 18, 2013 at 17:10

    Categories: Infrastructure Consulting, Tech   Tags:

    Nokia amber lumia updates region availability

    Amber update is now available. As of today, only 920 had been made available and then only on a few countries, eg: UK, Ireland, etc. Check this page for updates: http://www.nokia.com/global/support/software-update/wp8-software-update/availability-in-europe/

    I have a sim free lumia 820 bought from UK, but live in Finland and normally travel frequently. As far as I can work out, the update depends on which country you are currently in. My guess is that if it is not available for your carrier then you can download via wifi with the SIM card out. And of course you could look on the web, eg: Juan’s sky drive, for Nokia care and download the rom yourself – but I would not recommend it. I have lived through the pain of trying to get my lumia 820 on SFR and it was a horrible experience…

    From the page above you can also get a list of new features. The 1 thing I want to see is possibility to save apps to the sd cars on 820, but I don’t think it is there 🙁

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    Posted by admin - August 18, 2013 at 16:57

    Categories: Mobile Living, Tech, Windows Phone   Tags: