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Windows Server 2012 Thread, Live 2012 server upgrade 2012 r2? in Technical; Just out of interest has anyone done a 2012 to 2012 upgrade? Or would it be better to remove any ...
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    newpersn's Avatar
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    Live 2012 server upgrade 2012 r2?

    Just out of interest has anyone done a 2012 to 2012 upgrade?

    Or would it be better to remove any roles and wipe and restart?

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    depends what the server does. You could also consider migrating roles, distributing roles. Ensure you have a good backup!.

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    fairm010's Avatar
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    I was wondering about this. I want to do it with our 2 2012 DC VM's.

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    newpersn's Avatar
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    Quote Originally Posted by strawberry View Post
    depends what the server does. You could also consider migrating roles, distributing roles. Ensure you have a good backup!.
    Off the top of my head it's a dc with global catalogue.

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    synaesthesia's Avatar
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    Did both of our DCs. Not a problem.

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    newpersn's Avatar
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    Quote Originally Posted by synaesthesia View Post
    Did both of our DCs. Not a problem.
    Just by doing an upgrade within windows?

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    synaesthesia's Avatar
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    Yeah, didn't take too long. I vaguely recall following a set of instructions/best practice from MS - can't remember what they were but I would imagine it would have involved deactivating the AD DS roles etc before starting.

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    ADMaster's Avatar
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    I did this with my 2012 DC, and a few VM's I had running 2012 without a problem.

    For the hyper-v servers I moved the VM's to another host, and did a fresh install of 2012 r2.

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    fairm010's Avatar
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    So am I safe to "upgrade" my R2 install over 2012? What if any precautions I should take?

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    If the machine isn't a DC, I'd take a full system image and backups of any role config files (e.g. NPS has a powershell module to export/import the config)

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    ADMaster's Avatar
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    I had full system backups before I ran the upgrades, but there were no issues.

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    fairm010's Avatar
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    Cool. I'll take full system states and VM snapshots then upgrade. Thanks

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    newpersn's Avatar
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    I tired running the upgrade. Ran though it. A few reboots and I'm sure it blue screens and starts restoring back to server 2012 (non r2)

    I've mad sure there more than 16gb space free.

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    I did it on one of our servers with no problem at all (a file server). Tried it on another box and same result as you @newpersn - Lot's of blue screens and it then restores back to 2012 (non R2) can't restart setup after it has rolled back either...

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    newpersn's Avatar
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    Is there a install log? I would like to know what's causing the blue screen.

    My guessing it could be the raid controller.

    Bloody hp

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