Index: /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk	(revision 91714)
+++ /trunk/src/VBox/Frontends/VirtualBox/Makefile.kmk	(revision 91715)
@@ -694,5 +694,5 @@
 VirtualBoxVM_QT_MOCHDRS = \
 	src/globals/UIStarter.h \
-	src/runtime/UIBootTimeErrorDialog.h \
+	src/runtime/UIBootFailureDialog.h \
 	src/runtime/UIConsoleEventHandler.h \
 	src/runtime/UIFrameBuffer.h \
@@ -1215,5 +1215,5 @@
 	src/main.cpp \
 	src/globals/UIStarter.cpp \
-	src/runtime/UIBootTimeErrorDialog.cpp \
+	src/runtime/UIBootFailureDialog.cpp \
 	src/runtime/UIConsoleEventHandler.cpp \
 	src/runtime/UIFrameBuffer.cpp \
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.cpp	(revision 91715)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.cpp	(revision 91715)
@@ -0,0 +1,248 @@
+/* $Id$ */
+/** @file
+ * VBox Qt GUI - UIBootTimeErrorDialog class implementation.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+/* Qt includes: */
+#include <QAction>
+#include <QHeaderView>
+#include <QLabel>
+#include <QMenuBar>
+#include <QVBoxLayout>
+#include <QPushButton>
+
+/* GUI includes: */
+#include "QIDialogButtonBox.h"
+#include "QIToolButton.h"
+#include "QIRichTextLabel.h"
+
+#include "UICommon.h"
+#include "UIDesktopWidgetWatchdog.h"
+
+#include "UIFilePathSelector.h"
+#include "UIBootFailureDialog.h"
+
+#include "UIIconPool.h"
+#include "UIModalWindowManager.h"
+#include "UIMessageCenter.h"
+
+
+#include "CMediumAttachment.h"
+#include "CStorageController.h"
+
+UIBootFailureDialog::UIBootFailureDialog(QWidget *pParent, const CMachine &comMachine)
+    :QIWithRetranslateUI<QIMainDialog>(pParent)
+    , m_pParent(pParent)
+    , m_pCentralWidget(0)
+    , m_pMainLayout(0)
+    , m_pButtonBox(0)
+    , m_pCloseButton(0)
+    , m_pResetButton(0)
+    , m_pLabel(0)
+    , m_pBootImageSelector(0)
+    , m_pBootImageLabel(0)
+    , m_comMachine(comMachine)
+{
+    configure();
+}
+
+QString UIBootFailureDialog::bootMediumPath() const
+{
+    if (!m_pBootImageSelector)
+        return QString();
+    return m_pBootImageSelector->path();
+}
+
+void UIBootFailureDialog::retranslateUi()
+{
+    if (m_pCloseButton)
+        m_pCloseButton->setText(tr("&Close"));
+    if (m_pResetButton)
+        m_pResetButton->setText(tr("&Reset"));
+
+    if (m_pLabel)
+        m_pLabel->setText(tr("The virtual machine failed to boot. That might be caused by a missing operating system "
+                             "or misconfigured boot order. Mounting an operation install DVD might solve this problem. "
+                             "Selecting an ISO file will attemt to mount it immediately to the guest machine."));
+    if (m_pBootImageLabel)
+        m_pBootImageLabel->setText(tr("Boot DVD:"));
+}
+
+void UIBootFailureDialog::configure()
+{
+    setWindowIcon(UIIconPool::iconSetFull(":/media_manager_32px.png", ":/media_manager_16px.png"));
+    setTitle();
+    prepareWidgets();
+    prepareConnections();
+}
+
+void UIBootFailureDialog::prepareConnections()
+{
+    if (m_pCloseButton)
+        connect(m_pCloseButton, &QPushButton::clicked, this, &UIBootFailureDialog::sltCancel);
+    if (m_pResetButton)
+        connect(m_pResetButton, &QPushButton::clicked, this, &UIBootFailureDialog::sltReset);
+}
+
+void UIBootFailureDialog::prepareWidgets()
+{
+    m_pCentralWidget = new QWidget;
+    if (!m_pCentralWidget)
+        return;
+    setCentralWidget(m_pCentralWidget);
+
+    m_pMainLayout = new QVBoxLayout;
+    m_pCentralWidget->setLayout(m_pMainLayout);
+
+    if (!m_pMainLayout || !menuBar())
+        return;
+
+    m_pLabel = new QIRichTextLabel;
+    if (m_pLabel)
+        m_pMainLayout->addWidget(m_pLabel);
+
+    QHBoxLayout *pSelectorLayout = new QHBoxLayout;
+    pSelectorLayout->setContentsMargins(0, 0, 0, 0);
+    m_pBootImageLabel = new QLabel;
+
+    if (m_pBootImageLabel)
+        pSelectorLayout->addWidget(m_pBootImageLabel);
+
+    m_pBootImageSelector = new UIFilePathSelector;
+    if (m_pBootImageSelector)
+    {
+        m_pBootImageSelector->setMode(UIFilePathSelector::Mode_File_Open);
+        m_pBootImageSelector->setFileDialogFilters("ISO Images(*.iso *.ISO)");
+        m_pBootImageSelector->setInitialPath(uiCommon().defaultFolderPathForType(UIMediumDeviceType_DVD));
+        m_pBootImageSelector->setRecentMediaListType(UIMediumDeviceType_DVD);
+        if (m_pBootImageLabel)
+            m_pBootImageLabel->setBuddy(m_pBootImageSelector);
+        pSelectorLayout->addWidget(m_pBootImageSelector);
+        connect(m_pBootImageSelector, &UIFilePathSelector::pathChanged,
+                this, &UIBootFailureDialog::sltFileSelectorPathChanged);
+    }
+    m_pMainLayout->addLayout(pSelectorLayout);
+    m_pButtonBox = new QIDialogButtonBox;
+    if (m_pButtonBox)
+    {
+        m_pCloseButton = m_pButtonBox->addButton(QString(), QDialogButtonBox::RejectRole);
+        m_pResetButton = m_pButtonBox->addButton(QString(), QDialogButtonBox::ActionRole);
+        m_pCloseButton->setShortcut(Qt::Key_Escape);
+
+        m_pMainLayout->addWidget(m_pButtonBox);
+    }
+    m_pMainLayout->addStretch();
+    retranslateUi();
+}
+
+void UIBootFailureDialog::sltCancel()
+{
+    done(static_cast<int>(ReturnCode_Close));
+}
+
+void UIBootFailureDialog::sltReset()
+{
+    done(static_cast<int>(ReturnCode_Reset));
+}
+
+void UIBootFailureDialog::showEvent(QShowEvent *pEvent)
+{
+    Q_UNUSED(pEvent);
+
+    /* Try to determine the initial size: */
+    // QSize proposedSize;
+    // int iHostScreen = 0;
+    // if (m_pParent)
+    //     iHostScreen = gpDesktop->screenNumber(m_pParent);
+    // else
+    //     iHostScreen = gpDesktop->screenNumber(this);
+    // if (iHostScreen >= 0 && iHostScreen < gpDesktop->screenCount())
+    // {
+    //     /* On the basis of current host-screen geometry if possible: */
+    //     const QRect screenGeometry = gpDesktop->screenGeometry(iHostScreen);
+    //     if (screenGeometry.isValid())
+    //         proposedSize = screenGeometry.size() * 5 / 15;
+    // }
+    // /* Fallback to default size if we failed: */
+    // if (proposedSize.isNull())
+    //     proposedSize = QSize(800, 600);
+    // /* Resize to initial size: */
+    // resize(proposedSize);
+
+    if (m_pParent)
+        UIDesktopWidgetWatchdog::centerWidget(this, m_pParent, false);
+
+}
+
+void UIBootFailureDialog::setTitle()
+{
+}
+
+bool UIBootFailureDialog::insertBootMedium(const QUuid &uMediumId)
+{
+    AssertReturn(!uMediumId.isNull(), false);
+
+    CVirtualBox comVBox = uiCommon().virtualBox();
+    const CGuestOSType &comOsType = comVBox.GetGuestOSType(m_comMachine.GetOSTypeId());
+    /* Get recommended controller bus & type: */
+    const KStorageBus enmRecommendedDvdBus = comOsType.GetRecommendedDVDStorageBus();
+    const KStorageControllerType enmRecommendedDvdType = comOsType.GetRecommendedDVDStorageController();
+
+    CMediumAttachment comAttachment;
+    /* Search for an attachment of required bus & type: */
+    foreach (const CMediumAttachment &comCurrentAttachment, m_comMachine.GetMediumAttachments())
+    {
+        /* Determine current attachment's controller: */
+        const CStorageController &comCurrentController = m_comMachine.GetStorageControllerByName(comCurrentAttachment.GetController());
+
+        if (   comCurrentController.GetBus() == enmRecommendedDvdBus
+            && comCurrentController.GetControllerType() == enmRecommendedDvdType
+            && comCurrentAttachment.GetType() == KDeviceType_DVD)
+        {
+            comAttachment = comCurrentAttachment;
+            break;
+        }
+    }
+    AssertMsgReturn(!comAttachment.isNull(), ("Storage Controller is NOT properly configured!\n"), false);
+
+    const UIMedium guiMedium = uiCommon().medium(uMediumId);
+    const CMedium comMedium = guiMedium.medium();
+
+    /* Mount medium to the predefined port/device: */
+    m_comMachine.MountMedium(comAttachment.GetController(), comAttachment.GetPort(), comAttachment.GetDevice(), comMedium, false /* force */);
+    bool fSuccess = m_comMachine.isOk();
+
+    QWidget *pParent = windowManager().realParentWindow(this);
+
+    /* Show error message if necessary: */
+    if (!fSuccess)
+        msgCenter().cannotRemountMedium(m_comMachine, guiMedium, true /* mount? */, false /* retry? */, pParent);
+    else
+    {
+        /* Save machine settings: */
+        m_comMachine.SaveSettings();
+        fSuccess = m_comMachine.isOk();
+
+        /* Show error message if necessary: */
+        if (!fSuccess)
+            msgCenter().cannotSaveMachineSettings(m_comMachine, pParent);
+    }
+    return fSuccess;
+}
+
+void UIBootFailureDialog::sltFileSelectorPathChanged(const QString &strPath)
+{
+    insertBootMedium(uiCommon().openMedium(UIMediumDeviceType_DVD, strPath));
+}
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.h	(revision 91715)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootFailureDialog.h	(revision 91715)
@@ -0,0 +1,105 @@
+/* $Id$ */
+/** @file
+ * VBox Qt GUI - UIBootFailureDialog class declaration.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef FEQT_INCLUDED_SRC_runtime_UIBootFailureDialog_h
+#define FEQT_INCLUDED_SRC_runtime_UIBootFailureDialog_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+/* GUI includes: */
+#include "QIMainDialog.h"
+#include "QIWithRetranslateUI.h"
+#include "UIMedium.h"
+#include "UIMediumDefs.h"
+
+
+/* Forward declarations: */
+class QLabel;
+class QVBoxLayout;
+class QIDialogButtonBox;
+class QIRichTextLabel;
+class UIFilePathSelector;
+
+/* COM includes: */
+#include "COMEnums.h"
+#include "CMachine.h"
+
+/** QIDialog extension providing GUI with a dialog to select an existing medium. */
+class UIBootFailureDialog : public QIWithRetranslateUI<QIMainDialog>
+{
+
+    Q_OBJECT;
+
+signals:
+
+public:
+
+    enum ReturnCode
+    {
+        ReturnCode_Close = 0,
+        ReturnCode_Reset,
+        ReturnCode_Max
+    };
+
+    UIBootFailureDialog(QWidget *pParent, const CMachine &comMachine);
+    QString bootMediumPath() const;
+
+protected:
+
+    void showEvent(QShowEvent *pEvent);
+
+
+private slots:
+
+    void sltCancel();
+    void sltReset();
+    void sltFileSelectorPathChanged(const QString &strPath);
+
+private:
+
+    bool insertBootMedium(const QUuid &uMediumId);
+
+    /** @name Event-handling stuff.
+      * @{ */
+        /** Handles translation event. */
+        virtual void retranslateUi() /* override */;
+    /** @} */
+
+    /** @name Prepare/cleanup cascade.
+      * @{ */
+        /** Configures all. */
+            void configure();
+            void prepareWidgets();
+            void prepareConnections();
+    /** @} */
+
+    void          setTitle();
+    QWidget              *m_pParent;
+
+    QWidget              *m_pCentralWidget;
+    QVBoxLayout          *m_pMainLayout;
+    QIDialogButtonBox    *m_pButtonBox;
+    QPushButton          *m_pCloseButton;
+    QPushButton          *m_pResetButton;
+    QIRichTextLabel      *m_pLabel;
+    UIFilePathSelector   *m_pBootImageSelector;
+    QLabel               *m_pBootImageLabel;
+    CMachine              m_comMachine;
+};
+
+#endif /* !FEQT_INCLUDED_SRC_runtime_UIBootFailureDialog_h */
Index: unk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootTimeErrorDialog.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootTimeErrorDialog.cpp	(revision 91714)
+++ 	(revision )
@@ -1,248 +1,0 @@
-/* $Id$ */
-/** @file
- * VBox Qt GUI - UIBootTimeErrorDialog class implementation.
- */
-
-/*
- * Copyright (C) 2006-2020 Oracle Corporation
- *
- * This file is part of VirtualBox Open Source Edition (OSE), as
- * available from http://www.virtualbox.org. This file is free software;
- * you can redistribute it and/or modify it under the terms of the GNU
- * General Public License (GPL) as published by the Free Software
- * Foundation, in version 2 as it comes in the "COPYING" file of the
- * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
- * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
- */
-
-/* Qt includes: */
-#include <QAction>
-#include <QHeaderView>
-#include <QLabel>
-#include <QMenuBar>
-#include <QVBoxLayout>
-#include <QPushButton>
-
-/* GUI includes: */
-#include "QIDialogButtonBox.h"
-#include "QIToolButton.h"
-#include "QIRichTextLabel.h"
-
-#include "UICommon.h"
-#include "UIDesktopWidgetWatchdog.h"
-
-#include "UIFilePathSelector.h"
-#include "UIBootTimeErrorDialog.h"
-
-#include "UIIconPool.h"
-#include "UIModalWindowManager.h"
-#include "UIMessageCenter.h"
-
-
-#include "CMediumAttachment.h"
-#include "CStorageController.h"
-
-UIBootTimeErrorDialog::UIBootTimeErrorDialog(QWidget *pParent, const CMachine &comMachine)
-    :QIWithRetranslateUI<QIMainDialog>(pParent)
-    , m_pParent(pParent)
-    , m_pCentralWidget(0)
-    , m_pMainLayout(0)
-    , m_pButtonBox(0)
-    , m_pCloseButton(0)
-    , m_pResetButton(0)
-    , m_pLabel(0)
-    , m_pBootImageSelector(0)
-    , m_pBootImageLabel(0)
-    , m_comMachine(comMachine)
-{
-    configure();
-}
-
-QString UIBootTimeErrorDialog::bootMediumPath() const
-{
-    if (!m_pBootImageSelector)
-        return QString();
-    return m_pBootImageSelector->path();
-}
-
-void UIBootTimeErrorDialog::retranslateUi()
-{
-    if (m_pCloseButton)
-        m_pCloseButton->setText(tr("&Close"));
-    if (m_pResetButton)
-        m_pResetButton->setText(tr("&Reset"));
-
-    if (m_pLabel)
-        m_pLabel->setText(tr("The virtual machine failed to boot. That might be caused by a missing operating system "
-                             "or misconfigured boot order. Mounting an operation install DVD might solve this problem. "
-                             "Selecting an ISO file will attemt to mount it immediately to the guest machine."));
-    if (m_pBootImageLabel)
-        m_pBootImageLabel->setText(tr("Boot DVD:"));
-}
-
-void UIBootTimeErrorDialog::configure()
-{
-    setWindowIcon(UIIconPool::iconSetFull(":/media_manager_32px.png", ":/media_manager_16px.png"));
-    setTitle();
-    prepareWidgets();
-    prepareConnections();
-}
-
-void UIBootTimeErrorDialog::prepareConnections()
-{
-    if (m_pCloseButton)
-        connect(m_pCloseButton, &QPushButton::clicked, this, &UIBootTimeErrorDialog::sltCancel);
-    if (m_pResetButton)
-        connect(m_pResetButton, &QPushButton::clicked, this, &UIBootTimeErrorDialog::sltReset);
-}
-
-void UIBootTimeErrorDialog::prepareWidgets()
-{
-    m_pCentralWidget = new QWidget;
-    if (!m_pCentralWidget)
-        return;
-    setCentralWidget(m_pCentralWidget);
-
-    m_pMainLayout = new QVBoxLayout;
-    m_pCentralWidget->setLayout(m_pMainLayout);
-
-    if (!m_pMainLayout || !menuBar())
-        return;
-
-    m_pLabel = new QIRichTextLabel;
-    if (m_pLabel)
-        m_pMainLayout->addWidget(m_pLabel);
-
-    QHBoxLayout *pSelectorLayout = new QHBoxLayout;
-    pSelectorLayout->setContentsMargins(0, 0, 0, 0);
-    m_pBootImageLabel = new QLabel;
-
-    if (m_pBootImageLabel)
-        pSelectorLayout->addWidget(m_pBootImageLabel);
-
-    m_pBootImageSelector = new UIFilePathSelector;
-    if (m_pBootImageSelector)
-    {
-        m_pBootImageSelector->setMode(UIFilePathSelector::Mode_File_Open);
-        m_pBootImageSelector->setFileDialogFilters("ISO Images(*.iso *.ISO)");
-        m_pBootImageSelector->setInitialPath(uiCommon().defaultFolderPathForType(UIMediumDeviceType_DVD));
-        m_pBootImageSelector->setRecentMediaListType(UIMediumDeviceType_DVD);
-        if (m_pBootImageLabel)
-            m_pBootImageLabel->setBuddy(m_pBootImageSelector);
-        pSelectorLayout->addWidget(m_pBootImageSelector);
-        connect(m_pBootImageSelector, &UIFilePathSelector::pathChanged,
-                this, &UIBootTimeErrorDialog::sltFileSelectorPathChanged);
-    }
-    m_pMainLayout->addLayout(pSelectorLayout);
-    m_pButtonBox = new QIDialogButtonBox;
-    if (m_pButtonBox)
-    {
-        m_pCloseButton = m_pButtonBox->addButton(QString(), QDialogButtonBox::RejectRole);
-        m_pResetButton = m_pButtonBox->addButton(QString(), QDialogButtonBox::ActionRole);
-        m_pCloseButton->setShortcut(Qt::Key_Escape);
-
-        m_pMainLayout->addWidget(m_pButtonBox);
-    }
-    m_pMainLayout->addStretch();
-    retranslateUi();
-}
-
-void UIBootTimeErrorDialog::sltCancel()
-{
-    done(static_cast<int>(ReturnCode_Close));
-}
-
-void UIBootTimeErrorDialog::sltReset()
-{
-    done(static_cast<int>(ReturnCode_Reset));
-}
-
-void UIBootTimeErrorDialog::showEvent(QShowEvent *pEvent)
-{
-    Q_UNUSED(pEvent);
-
-    /* Try to determine the initial size: */
-    // QSize proposedSize;
-    // int iHostScreen = 0;
-    // if (m_pParent)
-    //     iHostScreen = gpDesktop->screenNumber(m_pParent);
-    // else
-    //     iHostScreen = gpDesktop->screenNumber(this);
-    // if (iHostScreen >= 0 && iHostScreen < gpDesktop->screenCount())
-    // {
-    //     /* On the basis of current host-screen geometry if possible: */
-    //     const QRect screenGeometry = gpDesktop->screenGeometry(iHostScreen);
-    //     if (screenGeometry.isValid())
-    //         proposedSize = screenGeometry.size() * 5 / 15;
-    // }
-    // /* Fallback to default size if we failed: */
-    // if (proposedSize.isNull())
-    //     proposedSize = QSize(800, 600);
-    // /* Resize to initial size: */
-    // resize(proposedSize);
-
-    if (m_pParent)
-        UIDesktopWidgetWatchdog::centerWidget(this, m_pParent, false);
-
-}
-
-void UIBootTimeErrorDialog::setTitle()
-{
-}
-
-bool UIBootTimeErrorDialog::insertBootMedium(const QUuid &uMediumId)
-{
-    AssertReturn(!uMediumId.isNull(), false);
-
-    CVirtualBox comVBox = uiCommon().virtualBox();
-    const CGuestOSType &comOsType = comVBox.GetGuestOSType(m_comMachine.GetOSTypeId());
-    /* Get recommended controller bus & type: */
-    const KStorageBus enmRecommendedDvdBus = comOsType.GetRecommendedDVDStorageBus();
-    const KStorageControllerType enmRecommendedDvdType = comOsType.GetRecommendedDVDStorageController();
-
-    CMediumAttachment comAttachment;
-    /* Search for an attachment of required bus & type: */
-    foreach (const CMediumAttachment &comCurrentAttachment, m_comMachine.GetMediumAttachments())
-    {
-        /* Determine current attachment's controller: */
-        const CStorageController &comCurrentController = m_comMachine.GetStorageControllerByName(comCurrentAttachment.GetController());
-
-        if (   comCurrentController.GetBus() == enmRecommendedDvdBus
-            && comCurrentController.GetControllerType() == enmRecommendedDvdType
-            && comCurrentAttachment.GetType() == KDeviceType_DVD)
-        {
-            comAttachment = comCurrentAttachment;
-            break;
-        }
-    }
-    AssertMsgReturn(!comAttachment.isNull(), ("Storage Controller is NOT properly configured!\n"), false);
-
-    const UIMedium guiMedium = uiCommon().medium(uMediumId);
-    const CMedium comMedium = guiMedium.medium();
-
-    /* Mount medium to the predefined port/device: */
-    m_comMachine.MountMedium(comAttachment.GetController(), comAttachment.GetPort(), comAttachment.GetDevice(), comMedium, false /* force */);
-    bool fSuccess = m_comMachine.isOk();
-
-    QWidget *pParent = windowManager().realParentWindow(this);
-
-    /* Show error message if necessary: */
-    if (!fSuccess)
-        msgCenter().cannotRemountMedium(m_comMachine, guiMedium, true /* mount? */, false /* retry? */, pParent);
-    else
-    {
-        /* Save machine settings: */
-        m_comMachine.SaveSettings();
-        fSuccess = m_comMachine.isOk();
-
-        /* Show error message if necessary: */
-        if (!fSuccess)
-            msgCenter().cannotSaveMachineSettings(m_comMachine, pParent);
-    }
-    return fSuccess;
-}
-
-void UIBootTimeErrorDialog::sltFileSelectorPathChanged(const QString &strPath)
-{
-    insertBootMedium(uiCommon().openMedium(UIMediumDeviceType_DVD, strPath));
-}
Index: unk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootTimeErrorDialog.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIBootTimeErrorDialog.h	(revision 91714)
+++ 	(revision )
@@ -1,105 +1,0 @@
-/* $Id$ */
-/** @file
- * VBox Qt GUI - UIBootTimeErrorDialog class declaration.
- */
-
-/*
- * Copyright (C) 2006-2020 Oracle Corporation
- *
- * This file is part of VirtualBox Open Source Edition (OSE), as
- * available from http://www.virtualbox.org. This file is free software;
- * you can redistribute it and/or modify it under the terms of the GNU
- * General Public License (GPL) as published by the Free Software
- * Foundation, in version 2 as it comes in the "COPYING" file of the
- * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
- * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
- */
-
-#ifndef FEQT_INCLUDED_SRC_runtime_UIBootTimeErrorDialog_h
-#define FEQT_INCLUDED_SRC_runtime_UIBootTimeErrorDialog_h
-#ifndef RT_WITHOUT_PRAGMA_ONCE
-# pragma once
-#endif
-
-/* GUI includes: */
-#include "QIMainDialog.h"
-#include "QIWithRetranslateUI.h"
-#include "UIMedium.h"
-#include "UIMediumDefs.h"
-
-
-/* Forward declarations: */
-class QLabel;
-class QVBoxLayout;
-class QIDialogButtonBox;
-class QIRichTextLabel;
-class UIFilePathSelector;
-
-/* COM includes: */
-#include "COMEnums.h"
-#include "CMachine.h"
-
-/** QIDialog extension providing GUI with a dialog to select an existing medium. */
-class UIBootTimeErrorDialog : public QIWithRetranslateUI<QIMainDialog>
-{
-
-    Q_OBJECT;
-
-signals:
-
-public:
-
-    enum ReturnCode
-    {
-        ReturnCode_Close = 0,
-        ReturnCode_Reset,
-        ReturnCode_Max
-    };
-
-    UIBootTimeErrorDialog(QWidget *pParent, const CMachine &comMachine);
-    QString bootMediumPath() const;
-
-protected:
-
-    void showEvent(QShowEvent *pEvent);
-
-
-private slots:
-
-    void sltCancel();
-    void sltReset();
-    void sltFileSelectorPathChanged(const QString &strPath);
-
-private:
-
-    bool insertBootMedium(const QUuid &uMediumId);
-
-    /** @name Event-handling stuff.
-      * @{ */
-        /** Handles translation event. */
-        virtual void retranslateUi() /* override */;
-    /** @} */
-
-    /** @name Prepare/cleanup cascade.
-      * @{ */
-        /** Configures all. */
-            void configure();
-            void prepareWidgets();
-            void prepareConnections();
-    /** @} */
-
-    void          setTitle();
-    QWidget              *m_pParent;
-
-    QWidget              *m_pCentralWidget;
-    QVBoxLayout          *m_pMainLayout;
-    QIDialogButtonBox    *m_pButtonBox;
-    QPushButton          *m_pCloseButton;
-    QPushButton          *m_pResetButton;
-    QIRichTextLabel      *m_pLabel;
-    UIFilePathSelector   *m_pBootImageSelector;
-    QLabel               *m_pBootImageLabel;
-    CMachine              m_comMachine;
-};
-
-#endif /* !FEQT_INCLUDED_SRC_runtime_UIBootTimeErrorDialog_h */
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp	(revision 91714)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineLogic.cpp	(revision 91715)
@@ -34,5 +34,5 @@
 #include "UIActionPoolRuntime.h"
 #include "UIAddDiskEncryptionPasswordDialog.h"
-#include "UIBootTimeErrorDialog.h"
+#include "UIBootFailureDialog.h"
 #include "UICommon.h"
 #include "UIConverter.h"
@@ -3259,5 +3259,5 @@
 {
     QWidget *pParent = windowManager().realParentWindow(activeMachineWindow());
-    UIBootTimeErrorDialog *pBootFailureDialog = new UIBootTimeErrorDialog(pParent, machine());
+    UIBootFailureDialog *pBootFailureDialog = new UIBootFailureDialog(pParent, machine());
     AssertPtrReturnVoid(pBootFailureDialog);
     connect(actionPool()->action(UIActionIndexRT_M_Machine_S_Reset), &UIAction::triggered,
@@ -3269,5 +3269,5 @@
     delete pBootFailureDialog;
 
-    if (iResult == static_cast<int>(UIBootTimeErrorDialog::ReturnCode_Reset))
+    if (iResult == static_cast<int>(UIBootFailureDialog::ReturnCode_Reset))
         sltReset(false);
 }
