| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="ts_win2k-guest-install">
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| 4 | <title>Windows 2000 Installation Failures</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | When installing Windows 2000 guests, you might run into one of
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| 9 | the following issues:
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| 10 | </p>
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| 11 | <ul>
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| 12 | <li>
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| 13 | <p>
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| 14 | Installation reboots, usually during component registration.
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| 15 | </p>
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| 16 | </li>
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| 17 | <li>
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| 18 | <p>
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| 19 | Installation fills the whole hard disk with empty log files.
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| 20 | </p>
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| 21 | </li>
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| 22 | <li>
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| 23 | <p>
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| 24 | Installation complains about a failure installing
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| 25 | <filepath>msgina.dll</filepath>.
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| 26 | </p>
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| 27 | </li>
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| 28 | </ul>
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| 29 | <p>
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| 30 | These problems are all caused by a bug in the hard disk driver
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| 31 | of Windows 2000. After issuing a hard disk request, there is a
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| 32 | race condition in the Windows driver code which leads to
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| 33 | corruption if the operation completes too fast. For example, the
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| 34 | hardware interrupt from the IDE controller arrives too soon.
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| 35 | With physical hardware, there is a guaranteed delay in most
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| 36 | systems so the problem is usually hidden there. However, it
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| 37 | should be possible to also reproduce it on physical hardware. In
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| 38 | a virtual environment, it is possible for the operation to be
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| 39 | done immediately, especially on very fast systems with multiple
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| 40 | CPUs, and the interrupt is signaled sooner than on a physical
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| 41 | system. The solution is to introduce an artificial delay before
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| 42 | delivering such interrupts. This delay can be configured for a
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| 43 | VM using the following command:
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| 44 | </p>
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| 45 | <pre xml:space="preserve">$ VBoxManage setextradata <varname>VM-name</varname> "VBoxInternal/Devices/piix3ide/0/Config/IRQDelay" 1</pre>
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| 46 | <p>
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| 47 | This sets the delay to one millisecond. In case this does not
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| 48 | help, increase it to a value between 1 and 5 milliseconds.
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| 49 | Please note that this slows down disk performance. After
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| 50 | installation, you should be able to remove the key, or set it to
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| 51 | 0.
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| 52 | </p>
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| 53 | </body>
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| 54 |
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| 55 | </topic>
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