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From 898b0654a0c4ef55af147a5ca081d2399ce05855 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Golembiovsk=C3=BD?= <tgolembi@redhat.com>
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Date: Thu, 5 Mar 2020 15:37:13 +0100
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Subject: [PATCH] windows: delay installation of qemu-ga MSI
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Instead of running firstboot script during early boot schedule a task
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delayed for 2 minutes.
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During the first boot, after virt-v2v conversion, Windows installs the
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drivers injected by virt-v2v. When this installation is finished
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Windows enforces some kind of internal reboot. This unfortunately
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terminates any running firstboot scripts thus killing the installation
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of qemu-ga MSI.
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This is just a best-effort mitigation. It can still happen (e.g. with
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slow disk drives) that the drivers are not yet installed when the
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delayed installation starts. On the other hand we cannot delay it too
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much otherwise we risk that the users logs in and will be doing some
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work when the MSI installation starts. After MSI installation finishes
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the VM needs to be rebooted which would be annoying if that would happen
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under users hands. Although this is not a best fix (that may come later
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as it is more complex, e.g. introducing waiting mechanism), the delay as
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it is defined works in most cases. And it dramaticaly improves the
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situations -- originaly I experienced more than 90% failure rate.
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Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
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(cherry picked from commit dc66e78fa37db33e3c7358b7f7c7fa809cf62f9d
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in virt-v2v)
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---
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v2v/convert_windows.ml | 17 +++++++----------
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1 file changed, 7 insertions(+), 10 deletions(-)
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diff --git a/v2v/convert_windows.ml b/v2v/convert_windows.ml
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index 43c1f85de..088cd33d9 100644
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--- a/v2v/convert_windows.ml
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+++ b/v2v/convert_windows.ml
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@@ -428,16 +428,13 @@ popd
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and configure_qemu_ga files =
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List.iter (
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fun msi_path ->
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- let fb_script = "\
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-echo Installing qemu-ga from " ^ msi_path ^ "
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-\"\\" ^ msi_path ^ "\" /norestart /qn /l+*vx \"%~dpn0.log\"
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-set elvl=!errorlevel!
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-echo Done installing qemu-ga error_level=!elvl!
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-if !elvl! == 0 (
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- echo Restarting Windows...
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- shutdown /r /f /c \"rebooted by firstboot script\"
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-)
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-" in
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+ let fb_script = sprintf "\
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+echo Removing any previously scheduled qemu-ga installation
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+schtasks.exe /Delete /TN Firstboot-qemu-ga /F
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+echo Scheduling delayed installation of qemu-ga from %s
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+powershell.exe -command \"$d = (get-date).AddSeconds(120); schtasks.exe /Create /SC ONCE /ST $d.ToString('HH:mm') /SD $d.ToString('MM/dd/yyyy') /RU SYSTEM /TN Firstboot-qemu-ga /TR \\\"C:\\%s /forcerestart /qn /l+*vx C:\\%s.log\\\"\"
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+ "
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+ msi_path msi_path msi_path in
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Firstboot.add_firstboot_script g inspect.i_root
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("install " ^ msi_path) fb_script;
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) files
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--
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2.18.4
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