Windows Vista Forums

Delete changes
  1. #1


    Mikoyan Guest

    Delete changes

    Virtual PC 2007

    I want to experiment with different ways to install /uninstall Exchange 2003
    on a W2K3 server. If it goes wrong on my test pc I'm faced with a lengthy
    reinstall.

    If I use Virtual PC and choose 'Turn off and delete changes' am I correct in
    thinking the server will be restored to the last saved state - i.e. it will
    undo any changes I don't want.

    Thanks Anastas




      My System SpecsSystem Spec

  2. #2


    Steve Jain [MVP] Guest

    Re: Delete changes

    On Fri, 30 Oct 2009 22:37:44 -0000, "Mikoyan" <Mikoyan@newsgroup>
    wrote:

    >Virtual PC 2007
    >
    >I want to experiment with different ways to install /uninstall Exchange 2003
    >on a W2K3 server. If it goes wrong on my test pc I'm faced with a lengthy
    >reinstall.
    >
    >If I use Virtual PC and choose 'Turn off and delete changes' am I correct in
    >thinking the server will be restored to the last saved state - i.e. it will
    >undo any changes I don't want.
    >
    >Thanks Anastas
    More than just the changes you don't want, everything that's changed
    since you turned on the Undo Drives.

    If you're installing Exchange into a domain, undoing those changes on
    just that server are really going to mess up your entire domain
    environment.

    --
    Cheers,
    Steve Jain, Virtual Machine MVP
    http://vpc.essjae.com/
    http://smudj.wordpress.com/

      My System SpecsSystem Spec

  3. #3


    Mikoyan Guest

    Re: Delete changes

    Hi Steve

    Cheers for the prompt reply.

    Thanks for the warning. I'm just experimenting on two virtual pcs, one dc
    and one member server, completely isolated from our main network. Basically
    I'm just trying to learn about Exchange and ways to install/uninstall it.

    So am I right in saying if I mess up on the Exchange Server, turn off and
    delete changes, and do the same on the other server, everything should be
    returned to where I began.

    Regards Anastas.
    "Steve Jain [MVP]" <noreply.-@-.essjae.com> wrote in message
    news:tfrme51nm1bcfi5oo9u9bmr8f4hmns08b4@newsgroup

    > On Fri, 30 Oct 2009 22:37:44 -0000, "Mikoyan" <Mikoyan@newsgroup>
    > wrote:
    >

    >>Virtual PC 2007
    >>
    >>I want to experiment with different ways to install /uninstall Exchange
    >>2003
    >>on a W2K3 server. If it goes wrong on my test pc I'm faced with a lengthy
    >>reinstall.
    >>
    >>If I use Virtual PC and choose 'Turn off and delete changes' am I correct
    >>in
    >>thinking the server will be restored to the last saved state - i.e. it
    >>will
    >>undo any changes I don't want.
    >>
    >>Thanks Anastas
    >
    > More than just the changes you don't want, everything that's changed
    > since you turned on the Undo Drives.
    >
    > If you're installing Exchange into a domain, undoing those changes on
    > just that server are really going to mess up your entire domain
    > environment.
    >
    > --
    > Cheers,
    > Steve Jain, Virtual Machine MVP
    > http://vpc.essjae.com/
    > http://smudj.wordpress.com/

      My System SpecsSystem Spec

  4. #4


    VanguardLH Guest

    Re: Delete changes

    Mikoyan wrote:

    > Virtual PC 2007
    >
    > I want to experiment with different ways to install /uninstall Exchange 2003
    > on a W2K3 server. If it goes wrong on my test pc I'm faced with a lengthy
    > reinstall.
    >
    > If I use Virtual PC and choose 'Turn off and delete changes' am I correct in
    > thinking the server will be restored to the last saved state - i.e. it will
    > undo any changes I don't want.
    >
    > Thanks Anastas
    If Undo is enabled for the VM, you get just one snapshot to revert your
    VM to its baseline state. VPC doesn't permit multiple snapshots to
    capture changes to a VM, like you want to add Windows updates to bring
    your OS up to a new baseline but sans any applications that you install
    atop of it.

    You might want to create a guest that is your baseline VM. You only
    apply any changes, like updates, to it but don't install any apps on it.
    That would be your "Reference" guest. You then create a new VM which is
    your "Test" guest. When creating a virtual disk drive for the Test
    guest, you make it a differential disk based on the .vhd file (the
    virtual disk) from your baseline or Reference guest. You then load your
    Test guest to install your apps and do you testing. You can revert back
    to its baseline by "Turn off and delete changes"; however, if you ever
    "accidentally" save the changes, you can't revert anymore. In that
    case, you could delete the .vhd file for your Test guest and recreate
    its virtual drive as a differential drive off your Reference guest's
    ..vhd file.

      My System SpecsSystem Spec

  5. #5


    Mikoyan Guest

    Re: Delete changes

    Thanks, thats a really good tip.

    "VanguardLH" <V@newsgroup> wrote in message
    news:hcgj3g$k5l$1@newsgroup

    > Mikoyan wrote:
    >

    >> Virtual PC 2007
    >>
    >> I want to experiment with different ways to install /uninstall Exchange
    >> 2003
    >> on a W2K3 server. If it goes wrong on my test pc I'm faced with a lengthy
    >> reinstall.
    >>
    >> If I use Virtual PC and choose 'Turn off and delete changes' am I correct
    >> in
    >> thinking the server will be restored to the last saved state - i.e. it
    >> will
    >> undo any changes I don't want.
    >>
    >> Thanks Anastas
    >
    > If Undo is enabled for the VM, you get just one snapshot to revert your
    > VM to its baseline state. VPC doesn't permit multiple snapshots to
    > capture changes to a VM, like you want to add Windows updates to bring
    > your OS up to a new baseline but sans any applications that you install
    > atop of it.
    >
    > You might want to create a guest that is your baseline VM. You only
    > apply any changes, like updates, to it but don't install any apps on it.
    > That would be your "Reference" guest. You then create a new VM which is
    > your "Test" guest. When creating a virtual disk drive for the Test
    > guest, you make it a differential disk based on the .vhd file (the
    > virtual disk) from your baseline or Reference guest. You then load your
    > Test guest to install your apps and do you testing. You can revert back
    > to its baseline by "Turn off and delete changes"; however, if you ever
    > "accidentally" save the changes, you can't revert anymore. In that
    > case, you could delete the .vhd file for your Test guest and recreate
    > its virtual drive as a differential drive off your Reference guest's
    > .vhd file.

      My System SpecsSystem Spec

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