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Ticket Resolution Summary Owner Reporter
#19804 fixed VM fails to start with VERR_NEM_MISSING_KERNEL_API_2 when using Hyper-V => fixed in SVN/next 6.1.x maintenance release Wisent
Description

Error message: "VMMR0_DO_NEM_INIT_VM failed: VERR_NEM_MISSING_KERNEL_API_2 (VERR_NEM_MISSING_KERNEL_API_2).

VT-x is not available (VERR_VMX_NO_VMX).

Fehlercode: E_FAIL (0x80004005) Komponente: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}"

VirtualBox COM Server 6.1.12 r139181 win.amd64 (Jul 10 2020 22:02:01) OS Product: Windows 10 OS Release: 10.0.18363 Secure Boot: VERR_PRIVILEGE_NOT_HELD Host RAM: 16131MB (15.7GB) total ERROR [COM]: aRC=VBOX_E_IPRT_ERROR (0x80bb0005) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={Saved screenshot data is not available (VERR_NOT_SUPPORTED)}, preserve=false aResultDetail=-37

It is independent of the created virtual machines like Ubuntu, Fedora etc.

In my opinion it is due to the VirtualBox Manager itself. The error describes that a session is already running and therefore cannot open another one. After installing and setting up the above mentioned virtual machines I closed the session and the VirtualBox Manager correctly.

When I completely uninstall VirtualBox Manger, everything runs without error message. When I log off or shut down the PC, I get the above error message.

I really hope there's a solution to this. Since I am still a beginner myself, I ask for detailed recommendations. Thank you.

#19800 fixed make sharedfolder option argument --auto-mount-point public Frank Batschulat (Oracle)
Description

From: "Timothy Tacker" <> To: vbox-dev@… Subject: [vbox-dev] [PATCH] document --auto-mount-point Date: Wed, 22 Jul 2020 04:28:43 +0200

The VBoxManage sharedfolder command supports an optional --auto-mount-point parameter, but it is not documented. The parameter was previously implemented and functions as expected on CentOS 8. Per the documentation, when the --automount parameter is used on Linux distributions, the default mount point will be either /media/USER/sf_share-name or /media/sf_share-name, where share-name is the share named. The --auto-mount-point parameter can be used to override the default mount point and use another one specified instead.

The below patch documents the --auto-mount-point parameter in both the manual and in VirtualBox itself. In addition, VBoxManageMisc.cpp was modified to handle -auto-mount-point in addition to --auto-mount-point, consistent with the other parameters for the sharedfolder command in the same file.

I'm licensing this patch under the MIT license. Please review. Feedback is welcome. Thanks!

Timothy Tacker

---
  doc/manual/en_US/man_VBoxManage-sharedfolder.xml | 10 +++++++++-
  doc/manual/en_US/user_VBoxManage.xml             | 11 ++++++++++-
  src/VBox/Frontends/VBoxManage/VBoxManageHelp.cpp |  1 +
  src/VBox/Frontends/VBoxManage/VBoxManageMisc.cpp |  3 ++-
  4 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/doc/manual/en_US/man_VBoxManage-sharedfolder.xml
b/doc/manual/en_US/man_VBoxManage-sharedfolder.xml
index bfa2c52b..7615eb6e 100644
--- a/doc/manual/en_US/man_VBoxManage-sharedfolder.xml
+++ b/doc/manual/en_US/man_VBoxManage-sharedfolder.xml
@@ -47,6 +47,7 @@
        <arg>--automount</arg>
        <arg>--readonly</arg>
        <arg>--transient</arg>
+      <arg>--auto-mount-point=<replaceable>mountpoint</replaceable></arg>
      </cmdsynopsis>

      <cmdsynopsis id="synopsis-vboxmanage-sharedfolder-remove">
@@ -111,7 +112,8 @@

  <filename>/var/run/media/<replaceable>username</replaceable>/sf_<replaceable>sharename</replaceable></filename>
                or

  <filename>/media/sf_<replaceable>sharename</replaceable></filename>,
-              depending on your guest OS.
+              depending on your guest OS, unless
+              <option>--auto-mount-point</option> is used.
              </para></listitem>
          </varlistentry>
          <varlistentry>
@@ -136,6 +138,12 @@
                after the VM stops.
              </para></listitem>
          </varlistentry>
+        <varlistentry>
+
  <term>--auto-mount-point=<replaceable>mountpoint</replaceable></term>
+          <listitem><para>
+              Specifies the mount point of the share.
+            </para></listitem>
+        </varlistentry>
        </variablelist>
      </refsect2>
      <refsect2 id="vboxmanage-sharedfolder-remove">
diff --git a/doc/manual/en_US/user_VBoxManage.xml
b/doc/manual/en_US/user_VBoxManage.xml
index 350709f4..60e4b987 100644
--- a/doc/manual/en_US/user_VBoxManage.xml
+++ b/doc/manual/en_US/user_VBoxManage.xml
@@ -6385,6 +6385,7 @@ Value: 2006.01.01</screen>
  VBoxManage sharedfolder     add &lt;uuid|vmname&gt;
                                  --name &lt;name&gt; --hostpath
&lt;hostpath&gt;
                                  [--transient] [--readonly] [--automount]
+                                [--auto-mount-point &lt;mountpoint&gt;]
  </screen>

      <para>
@@ -6454,7 +6455,8 @@ VBoxManage sharedfolder     add &lt;uuid|vmname&gt;
          <para>
            <computeroutput>-automount</computeroutput>: Specifies that
            the share will be automatically mounted. On Linux
-          distributions, this will be to either
+          distributions, unless
<computeroutput>--auto-mount-point</computeroutput>
+          is used, this will be to either

  <filename>/media/USER/sf_<replaceable>share-name</replaceable></filename>
            or

  <filename>/media/sf_<replaceable>share-name</replaceable></filename>,
@@ -6463,6 +6465,13 @@ VBoxManage sharedfolder     add &lt;uuid|vmname&gt;
          </para>
        </listitem>

+      <listitem>
+        <para>
+          <computeroutput>-auto-mount-point
&lt;mountpoint&gt;</computeroutput>:
+          Specifies the mount point of the share.
+        </para>
+      </listitem>
+
      </itemizedlist>

  <screen>
diff --git a/src/VBox/Frontends/VBoxManage/VBoxManageHelp.cpp
b/src/VBox/Frontends/VBoxManage/VBoxManageHelp.cpp
index d3c15586..7f90e322 100644
--- a/src/VBox/Frontends/VBoxManage/VBoxManageHelp.cpp
+++ b/src/VBox/Frontends/VBoxManage/VBoxManageHelp.cpp
@@ -1152,6 +1152,7 @@ void printUsage(USAGECATEGORY enmCommand, uint64_t
fSubcommandScope, PRTSTREAM p
                                 "%s sharedfolder %s    add <uuid|vmname>\n"
                           "                            --name <name>
--hostpath <hostpath>\n"
                           "                            [--transient]
[--readonly] [--automount]\n"
+                         "                            [--auto-mount-point
<mountpoint>]\n"
                           "\n", SEP);

          if (fSubcommandScope & HELP_SCOPE_SHAREDFOLDER_REMOVE)
diff --git a/src/VBox/Frontends/VBoxManage/VBoxManageMisc.cpp
b/src/VBox/Frontends/VBoxManage/VBoxManageMisc.cpp
index 3655d077..4631a801 100644
--- a/src/VBox/Frontends/VBoxManage/VBoxManageMisc.cpp
+++ b/src/VBox/Frontends/VBoxManage/VBoxManageMisc.cpp
@@ -1128,7 +1128,8 @@ RTEXITCODE handleSharedFolder(HandlerArg *a)
              {
                  fAutoMount = true;
              }
-            else if (!strcmp(a->argv[i], "--auto-mount-point"))
+            else if (   !strcmp(a->argv[i], "--auto-mount-point")
+                     || !strcmp(a->argv[i], "-auto-mount-point"))
              {
                  if (a->argc <= i + 1 || !*a->argv[i+1])
                      return errorArgument("Missing argument to '%s'",
a->argv[i]);

https://www.virtualbox.org/pipermail/vbox-dev/2020-July/015525.html

#19792 worksforme Drag and Drop does not work any more Bug Report
Description

Reinstalled the improved new version VirtualBox 6.1 with its new extension and there is no more sharing between virtual and real machine. Settings and Extension are correct. You can watch Video Example Here

Batch Modify
Note: See TracBatchModify for help on using batch modify.
Note: See TracQuery for help on using queries.

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