--- a/include/VBox/ostypes.h	2019-06-03 21:41:29.000000000 -0500
+++ b/include/VBox/ostypes.h	2019-06-04 00:11:22.000000000 -0500
@@ -79,10 +79,11 @@ typedef enum VBOXOSTYPE
     VBOXOSTYPE_OS2              = 0x40000,
     VBOXOSTYPE_OS2Warp3         = 0x41000,
     VBOXOSTYPE_OS2Warp4         = 0x42000,
     VBOXOSTYPE_OS2Warp45        = 0x43000,
     VBOXOSTYPE_ECS              = 0x44000,
+    VBOXOSTYPE_ArcaOS           = 0x45000,
     VBOXOSTYPE_OS21x            = 0x48000,
     VBOXOSTYPE_Linux            = 0x50000,
     VBOXOSTYPE_Linux_x64        = 0x50100,
     VBOXOSTYPE_Linux22          = 0x51000,
     VBOXOSTYPE_Linux24          = 0x52000,
--- a/src/VBox/Devices/VMMDev/VMMDev.cpp	2019-06-03 21:41:48.000000000 -0500
+++ b/src/VBox/Devices/VMMDev/VMMDev.cpp	2019-06-04 00:11:56.000000000 -0500
@@ -187,10 +187,11 @@ static void vmmdevLogGuestOsInfo(VBoxGue
         case VBOXOSTYPE_OS2:                              pszOs = "OS/2";           break;
         case VBOXOSTYPE_OS2Warp3:                         pszOs = "OS/2 Warp 3";    break;
         case VBOXOSTYPE_OS2Warp4:                         pszOs = "OS/2 Warp 4";    break;
         case VBOXOSTYPE_OS2Warp45:                        pszOs = "OS/2 Warp 4.5";  break;
         case VBOXOSTYPE_ECS:                              pszOs = "OS/2 ECS";       break;
+        case VBOXOSTYPE_ArcaOS:                           pszOs = "OS/2 ArcaOS";    break;
         case VBOXOSTYPE_OS21x:                            pszOs = "OS/2 2.1x";      break;
         case VBOXOSTYPE_Linux:                            pszOs = "Linux";          break;
         case VBOXOSTYPE_Linux22:                          pszOs = "Linux 2.2";      break;
         case VBOXOSTYPE_Linux24:                          pszOs = "Linux 2.4";      break;
         case VBOXOSTYPE_Linux26:                          pszOs = "Linux >= 2.6";   break;
--- a/src/VBox/Frontends/VirtualBox/src/globals/UIIconPool.cpp	2019-06-03 21:43:26.000000000 -0500
+++ b/src/VBox/Frontends/VirtualBox/src/globals/UIIconPool.cpp	2019-06-04 00:13:16.000000000 -0500
@@ -308,10 +308,11 @@ UIIconPoolGeneral::UIIconPoolGeneral()
     m_guestOSTypeIconNames.insert("OS2Warp4",        ":/os_os2warp4.png");
     m_guestOSTypeIconNames.insert("OS2Warp45",       ":/os_os2warp45.png");
     m_guestOSTypeIconNames.insert("OS2eCS",          ":/os_os2ecs.png");
     m_guestOSTypeIconNames.insert("OS21x",           ":/os_os2_other.png");
     m_guestOSTypeIconNames.insert("OS2",             ":/os_os2_other.png");
+    m_guestOSTypeIconNames.insert("OS2ArcaOS",       ":/os_os2ecs.png");
     m_guestOSTypeIconNames.insert("Linux22",         ":/os_linux22.png");
     m_guestOSTypeIconNames.insert("Linux24",         ":/os_linux24.png");
     m_guestOSTypeIconNames.insert("Linux24_64",      ":/os_linux24_64.png");
     m_guestOSTypeIconNames.insert("Linux26",         ":/os_linux26.png");
     m_guestOSTypeIconNames.insert("Linux26_64",      ":/os_linux26_64.png");
--- a/src/VBox/Frontends/VirtualBox/src/wizards/newvm/UIWizardNewVMPageBasic1.cpp	2019-06-03 21:43:25.000000000 -0500
+++ b/src/VBox/Frontends/VirtualBox/src/wizards/newvm/UIWizardNewVMPageBasic1.cpp	2019-06-04 00:14:36.000000000 -0500
@@ -93,10 +93,12 @@ static const osTypePattern gs_OSTypePatt
     { QRegExp( "OS[/|!-]{,1}2.*W.*4",       Qt::CaseInsensitive), "OS2Warp4" },
     { QRegExp( "OS[/|!-]{,1}2.*W",          Qt::CaseInsensitive), "OS2Warp3" },
     { QRegExp("(OS[/|!-]{,1}2.*e)|(eCS.*)", Qt::CaseInsensitive), "OS2eCS" },
     { QRegExp( "OS[/|!-]{,1}2",             Qt::CaseInsensitive), "OS2" },
     { QRegExp( "eComS.*",                   Qt::CaseInsensitive), "OS2eCS" },
+    { QRegExp("(OS[/|!-]{,1}2.*a)|(Arca.*)", Qt::CaseInsensitive), "OS2ArcaOS" },
+    { QRegExp( "Arca.*",                    Qt::CaseInsensitive), "OS2ArcaOS" },
 
     /* Other: Must come before Ubuntu/Maverick and before Linux??? */
     { QRegExp("QN", Qt::CaseInsensitive), "QNX" },
 
     /* Mac OS X: Must come before Ubuntu/Maverick and before Linux: */
--- a/src/VBox/Main/include/ovfreader.h	2019-06-03 21:43:02.000000000 -0500
+++ b/src/VBox/Main/include/ovfreader.h	2019-06-03 21:57:06.000000000 -0500
@@ -176,12 +176,13 @@ enum CIMOSType_T
     CIMOSType_CIMOS_Windows7 = 105,
     CIMOSType_CIMOS_CentOS = 106,
     CIMOSType_CIMOS_CentOS_64 = 107,
     CIMOSType_CIMOS_OracleEnterpriseLinux = 108,
     CIMOSType_CIMOS_OracleEnterpriseLinux_64 = 109,
-    CIMOSType_CIMOS_eComStation = 110
+    CIMOSType_CIMOS_eComStation = 110,
     // no new types added with CIM 2.26.0
+    CIMOSType_CIMOS_ArcaOS = 111
 };
 
 enum OVFVersion_T
 {
     OVFVersion_unknown,
--- a/src/VBox/Main/src-all/Global.cpp	2019-06-03 21:43:03.000000000 -0500
+++ b/src/VBox/Main/src-all/Global.cpp	2019-06-04 00:10:14.000000000 -0500
@@ -416,10 +416,15 @@ const Global::OSType Global::sOSTypes[] 
     { "OS2",     "IBM OS/2",          "OS21x",              "OS/2 1.x",
       VBOXOSTYPE_OS21x,           VBOXOSHINT_FLOPPY | VBOXOSHINT_NOUSB | VBOXOSHINT_TFRESET,
         8, 4, 500 * _1M, GraphicsControllerType_VBoxVGA, NetworkAdapterType_Am79C973, 1, StorageControllerType_PIIX4, StorageBus_IDE,
         StorageControllerType_PIIX4, StorageBus_IDE, ChipsetType_PIIX3, AudioControllerType_SB16, AudioCodecType_SB16  },
 
+    { "OS2",     "IBM OS/2",          "OS2ArcaOS",          "ArcaOS",
+      VBOXOSTYPE_ArcaOS,          VBOXOSHINT_HWVIRTEX,
+        256,  4,  2 * _1G64, GraphicsControllerType_VBoxVGA, NetworkAdapterType_I82540EM, 1, StorageControllerType_IntelAhci, StorageBus_SATA,
+        StorageControllerType_IntelAhci, StorageBus_SATA, ChipsetType_PIIX3, AudioControllerType_AC97, AudioCodecType_STAC9700  },
+
     { "OS2",     "IBM OS/2",          "OS2",                "Other OS/2",
       VBOXOSTYPE_OS2,             VBOXOSHINT_HWVIRTEX | VBOXOSHINT_FLOPPY | VBOXOSHINT_NOUSB,
         96,   4,  2 * _1G64, GraphicsControllerType_VBoxVGA, NetworkAdapterType_Am79C973, 1, StorageControllerType_PIIX4, StorageBus_IDE,
         StorageControllerType_PIIX4, StorageBus_IDE, ChipsetType_PIIX3, AudioControllerType_SB16, AudioCodecType_SB16  },
 
--- a/src/VBox/Main/src-server/ApplianceImpl.cpp	2019-06-03 21:43:03.000000000 -0500
+++ b/src/VBox/Main/src-server/ApplianceImpl.cpp	2019-06-03 22:00:14.000000000 -0500
@@ -170,11 +170,12 @@ static struct
                                                                                                 // CIM 64-bit type for this
     { ovf::CIMOSType_CIMOS_CentOS,                               VBOXOSTYPE_RedHat },
     { ovf::CIMOSType_CIMOS_CentOS_64,                            VBOXOSTYPE_RedHat_x64 },
     { ovf::CIMOSType_CIMOS_OracleEnterpriseLinux,                VBOXOSTYPE_Oracle },
     { ovf::CIMOSType_CIMOS_OracleEnterpriseLinux_64,             VBOXOSTYPE_Oracle_x64 },
-    { ovf::CIMOSType_CIMOS_eComStation,                          VBOXOSTYPE_ECS }
+    { ovf::CIMOSType_CIMOS_eComStation,                          VBOXOSTYPE_ECS },
+    { ovf::CIMOSType_CIMOS_ArocaOS,                              VBOXOSTYPE_ArcaOS }
 
     // there are no CIM types for these, so these turn to "other" on export:
     //      VBOXOSTYPE_OpenBSD
     //      VBOXOSTYPE_OpenBSD_x64
     //      VBOXOSTYPE_NetBSD
