| 1 | <?xml version="1.0" encoding="UTF-8"?>
|
|---|
| 2 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"[
|
|---|
| 4 | <!ENTITY % all.entities SYSTEM "all-entities.ent">
|
|---|
| 5 | %all.entities;
|
|---|
| 6 | ]>
|
|---|
| 7 | <chapter id="KnownIssues">
|
|---|
| 8 |
|
|---|
| 9 | <title>Known Limitations</title>
|
|---|
| 10 |
|
|---|
| 11 | <sect1 id="ExperimentalFeatures">
|
|---|
| 12 |
|
|---|
| 13 | <title>Experimental Features</title>
|
|---|
| 14 |
|
|---|
| 15 | <para>
|
|---|
| 16 | Some &product-name; features are labeled as experimental. Such
|
|---|
| 17 | features are provided on an "as-is" basis and are not formally
|
|---|
| 18 | supported. However, feedback and suggestions about such features
|
|---|
| 19 | are welcome. A comprehensive list of experimental features is as
|
|---|
| 20 | follows:
|
|---|
| 21 | </para>
|
|---|
| 22 |
|
|---|
| 23 | <itemizedlist>
|
|---|
| 24 |
|
|---|
| 25 | <listitem>
|
|---|
| 26 | <para>
|
|---|
| 27 | Hardware 3D acceleration support for Windows, Linux, and
|
|---|
| 28 | Oracle Solaris guests
|
|---|
| 29 | </para>
|
|---|
| 30 | </listitem>
|
|---|
| 31 |
|
|---|
| 32 | <listitem>
|
|---|
| 33 | <para>
|
|---|
| 34 | Hardware 2D video playback acceleration support for Windows
|
|---|
| 35 | guests
|
|---|
| 36 | </para>
|
|---|
| 37 | </listitem>
|
|---|
| 38 |
|
|---|
| 39 | <listitem>
|
|---|
| 40 | <para>
|
|---|
| 41 | PCI pass-through (Linux hosts only)
|
|---|
| 42 | </para>
|
|---|
| 43 | </listitem>
|
|---|
| 44 |
|
|---|
| 45 | <listitem>
|
|---|
| 46 | <para>
|
|---|
| 47 | Mac OS X guests (Mac OS X hosts only)
|
|---|
| 48 | </para>
|
|---|
| 49 | </listitem>
|
|---|
| 50 |
|
|---|
| 51 | <listitem>
|
|---|
| 52 | <para>
|
|---|
| 53 | ICH9 chipset emulation
|
|---|
| 54 | </para>
|
|---|
| 55 | </listitem>
|
|---|
| 56 |
|
|---|
| 57 | <listitem>
|
|---|
| 58 | <para>
|
|---|
| 59 | EFI firmware
|
|---|
| 60 | </para>
|
|---|
| 61 | </listitem>
|
|---|
| 62 |
|
|---|
| 63 | <listitem>
|
|---|
| 64 | <para>
|
|---|
| 65 | Host CD/DVD drive pass-through
|
|---|
| 66 | </para>
|
|---|
| 67 | </listitem>
|
|---|
| 68 |
|
|---|
| 69 | <listitem>
|
|---|
| 70 | <para>
|
|---|
| 71 | Support of iSCSI using internal networking
|
|---|
| 72 | </para>
|
|---|
| 73 | </listitem>
|
|---|
| 74 |
|
|---|
| 75 | <listitem>
|
|---|
| 76 | <para>
|
|---|
| 77 | Using &product-name; and Hyper-V on the same host
|
|---|
| 78 | </para>
|
|---|
| 79 | </listitem>
|
|---|
| 80 |
|
|---|
| 81 | </itemizedlist>
|
|---|
| 82 |
|
|---|
| 83 | </sect1>
|
|---|
| 84 |
|
|---|
| 85 | <sect1 id="KnownProblems">
|
|---|
| 86 |
|
|---|
| 87 | <title>Known Issues</title>
|
|---|
| 88 |
|
|---|
| 89 | <para>
|
|---|
| 90 | The following section describes known problems with this release
|
|---|
| 91 | of &product-name;. Unless marked otherwise, these issues are
|
|---|
| 92 | planned to be fixed in later releases.
|
|---|
| 93 | </para>
|
|---|
| 94 |
|
|---|
| 95 | <itemizedlist>
|
|---|
| 96 |
|
|---|
| 97 | <listitem>
|
|---|
| 98 | <para>
|
|---|
| 99 | The following <emphasis role="bold">Guest SMP (multiprocessor)
|
|---|
| 100 | limitations</emphasis> exist:
|
|---|
| 101 | </para>
|
|---|
| 102 |
|
|---|
| 103 | <itemizedlist>
|
|---|
| 104 |
|
|---|
| 105 | <listitem>
|
|---|
| 106 | <para>
|
|---|
| 107 | <emphasis role="bold">Poor performance</emphasis> with
|
|---|
| 108 | 32-bit guests on AMD CPUs. This affects mainly Windows and
|
|---|
| 109 | Oracle Solaris guests, but possibly also some Linux kernel
|
|---|
| 110 | revisions. Partially solved in 3.0.6 for 32-bit Windows
|
|---|
| 111 | NT, 2000, XP, and 2003 guests. Requires Guest Additions
|
|---|
| 112 | 3.0.6 or later to be installed.
|
|---|
| 113 | </para>
|
|---|
| 114 | </listitem>
|
|---|
| 115 |
|
|---|
| 116 | <listitem>
|
|---|
| 117 | <para>
|
|---|
| 118 | <emphasis role="bold">Poor performance</emphasis> with
|
|---|
| 119 | 32-bit guests on certain Intel CPU models that do not
|
|---|
| 120 | include virtual APIC hardware optimization support. This
|
|---|
| 121 | affects mainly Windows and Oracle Solaris guests, but
|
|---|
| 122 | possibly also some Linux kernel revisions. Partially
|
|---|
| 123 | solved in 3.0.12 for 32-bit Windows NT, 2000, XP, and 2003
|
|---|
| 124 | guests. Requires Guest Additions 3.0.12 or later to be
|
|---|
| 125 | installed.
|
|---|
| 126 | </para>
|
|---|
| 127 | </listitem>
|
|---|
| 128 |
|
|---|
| 129 | </itemizedlist>
|
|---|
| 130 | </listitem>
|
|---|
| 131 |
|
|---|
| 132 | <listitem>
|
|---|
| 133 | <para>
|
|---|
| 134 | <emphasis role="bold">NX (no execute, data execution
|
|---|
| 135 | prevention)</emphasis> only works for guests running on 64-bit
|
|---|
| 136 | hosts or guests running on 32-bit hosts with PAE enabled and
|
|---|
| 137 | requires that hardware virtualization be enabled.
|
|---|
| 138 | </para>
|
|---|
| 139 | </listitem>
|
|---|
| 140 |
|
|---|
| 141 | <listitem>
|
|---|
| 142 | <para>
|
|---|
| 143 | For <emphasis role="bold">basic Direct3D support in Windows
|
|---|
| 144 | guests</emphasis> to work, the Guest Additions must be
|
|---|
| 145 | installed in Windows safe mode. Press F8 when the Windows
|
|---|
| 146 | guest is booting and select <emphasis role="bold">Safe
|
|---|
| 147 | Mode</emphasis>, then install the Guest Additions. Otherwise
|
|---|
| 148 | the Windows file protection mechanism will interfere with the
|
|---|
| 149 | replacement DLLs installed by &product-name; and keep
|
|---|
| 150 | restoring the original Windows system DLLs.
|
|---|
| 151 | </para>
|
|---|
| 152 |
|
|---|
| 153 | <note>
|
|---|
| 154 | <para>
|
|---|
| 155 | This does <emphasis>not</emphasis> apply to the WDDM
|
|---|
| 156 | Direct3D video driver available for Vista and Windows 7
|
|---|
| 157 | guests shipped with &product-name; 4.1.
|
|---|
| 158 | </para>
|
|---|
| 159 | </note>
|
|---|
| 160 | </listitem>
|
|---|
| 161 |
|
|---|
| 162 | <listitem>
|
|---|
| 163 | <para>
|
|---|
| 164 | <emphasis role="bold">Guest control.</emphasis> On Windows
|
|---|
| 165 | guests, a process started using the guest control execute
|
|---|
| 166 | support will not be able to display a graphical user interface
|
|---|
| 167 | <emphasis>unless</emphasis> the user account under which it is
|
|---|
| 168 | running is currently logged in and has a desktop session.
|
|---|
| 169 | </para>
|
|---|
| 170 |
|
|---|
| 171 | <para>
|
|---|
| 172 | Also, to use accounts without or with an empty password, the
|
|---|
| 173 | guest's group policy must be changed. To do so, open the group
|
|---|
| 174 | policy editor on the command line by typing
|
|---|
| 175 | <command>gpedit.msc</command>, open the key
|
|---|
| 176 | <computeroutput>Computer Configuration\Windows
|
|---|
| 177 | Settings\Security Settings\Local Policies\Security
|
|---|
| 178 | Options</computeroutput> and change the value of
|
|---|
| 179 | <computeroutput>Accounts: Limit local account use of blank
|
|---|
| 180 | passwords to console logon only</computeroutput> to Disabled.
|
|---|
| 181 | </para>
|
|---|
| 182 | </listitem>
|
|---|
| 183 |
|
|---|
| 184 | <listitem>
|
|---|
| 185 | <para>
|
|---|
| 186 | <emphasis role="bold">Compacting virtual disk images is
|
|---|
| 187 | limited to VDI files.</emphasis> The <command>VBoxManage
|
|---|
| 188 | modifyhd --compact</command> command is currently only
|
|---|
| 189 | implemented for VDI files. At the moment the only way to
|
|---|
| 190 | optimize the size of a virtual disk images in other formats,
|
|---|
| 191 | such as VMDK or VHD, is to clone the image and then use the
|
|---|
| 192 | cloned image in the VM configuration.
|
|---|
| 193 | </para>
|
|---|
| 194 | </listitem>
|
|---|
| 195 |
|
|---|
| 196 | <listitem>
|
|---|
| 197 | <para>
|
|---|
| 198 | <emphasis role="bold">OVF import/export:</emphasis>
|
|---|
| 199 | </para>
|
|---|
| 200 |
|
|---|
| 201 | <itemizedlist>
|
|---|
| 202 |
|
|---|
| 203 | <listitem>
|
|---|
| 204 | <para>
|
|---|
| 205 | OVF localization, with multiple languages in a single OVF
|
|---|
| 206 | file, is not yet supported.
|
|---|
| 207 | </para>
|
|---|
| 208 | </listitem>
|
|---|
| 209 |
|
|---|
| 210 | <listitem>
|
|---|
| 211 | <para>
|
|---|
| 212 | Some OVF sections like StartupSection,
|
|---|
| 213 | DeploymentOptionSection, and InstallSection are ignored.
|
|---|
| 214 | </para>
|
|---|
| 215 | </listitem>
|
|---|
| 216 |
|
|---|
| 217 | <listitem>
|
|---|
| 218 | <para>
|
|---|
| 219 | OVF environment documents, including their property
|
|---|
| 220 | sections and appliance configuration with ISO images, are
|
|---|
| 221 | not yet supported.
|
|---|
| 222 | </para>
|
|---|
| 223 | </listitem>
|
|---|
| 224 |
|
|---|
| 225 | <listitem>
|
|---|
| 226 | <para>
|
|---|
| 227 | Remote files using HTTP or other mechanisms are not yet
|
|---|
| 228 | supported.
|
|---|
| 229 | </para>
|
|---|
| 230 | </listitem>
|
|---|
| 231 |
|
|---|
| 232 | </itemizedlist>
|
|---|
| 233 | </listitem>
|
|---|
| 234 |
|
|---|
| 235 | <listitem>
|
|---|
| 236 | <para>
|
|---|
| 237 | Neither <emphasis role="bold">scale mode</emphasis> nor
|
|---|
| 238 | <emphasis
|
|---|
| 239 | role="bold">seamless mode</emphasis> work
|
|---|
| 240 | correctly with guests using OpenGL 3D features, such as with
|
|---|
| 241 | compiz-enabled window managers.
|
|---|
| 242 | </para>
|
|---|
| 243 | </listitem>
|
|---|
| 244 |
|
|---|
| 245 | <listitem>
|
|---|
| 246 | <para>
|
|---|
| 247 | The RDP server in the &product-name; extension pack supports
|
|---|
| 248 | only audio streams in format 22.05kHz stereo 16 bit. If the
|
|---|
| 249 | RDP client requests any other audio format there will be no
|
|---|
| 250 | audio.
|
|---|
| 251 | </para>
|
|---|
| 252 | </listitem>
|
|---|
| 253 |
|
|---|
| 254 | <listitem>
|
|---|
| 255 | <para>
|
|---|
| 256 | Preserving the aspect ratio in scale mode works only on
|
|---|
| 257 | Windows hosts and on Mac OS X hosts.
|
|---|
| 258 | </para>
|
|---|
| 259 | </listitem>
|
|---|
| 260 |
|
|---|
| 261 | <listitem>
|
|---|
| 262 | <para>
|
|---|
| 263 | On <emphasis role="bold">Mac OS X hosts,</emphasis> the
|
|---|
| 264 | following features are not yet implemented:
|
|---|
| 265 | </para>
|
|---|
| 266 |
|
|---|
| 267 | <itemizedlist>
|
|---|
| 268 |
|
|---|
| 269 | <listitem>
|
|---|
| 270 | <para>
|
|---|
| 271 | Numlock emulation
|
|---|
| 272 | </para>
|
|---|
| 273 | </listitem>
|
|---|
| 274 |
|
|---|
| 275 | <listitem>
|
|---|
| 276 | <para>
|
|---|
| 277 | CPU frequency metric
|
|---|
| 278 | </para>
|
|---|
| 279 | </listitem>
|
|---|
| 280 |
|
|---|
| 281 | <listitem>
|
|---|
| 282 | <para>
|
|---|
| 283 | Memory ballooning
|
|---|
| 284 | </para>
|
|---|
| 285 | </listitem>
|
|---|
| 286 |
|
|---|
| 287 | </itemizedlist>
|
|---|
| 288 | </listitem>
|
|---|
| 289 |
|
|---|
| 290 | <listitem>
|
|---|
| 291 | <para>
|
|---|
| 292 | <emphasis role="bold">Mac OS X guests:</emphasis>
|
|---|
| 293 | </para>
|
|---|
| 294 |
|
|---|
| 295 | <itemizedlist>
|
|---|
| 296 |
|
|---|
| 297 | <listitem>
|
|---|
| 298 | <para>
|
|---|
| 299 | Mac OS X guests can only run on a certain host hardware.
|
|---|
| 300 | For details about license and host hardware limitations.
|
|---|
| 301 | See <xref linkend="intro-macosxguests" /> and check the
|
|---|
| 302 | Apple software license conditions.
|
|---|
| 303 | </para>
|
|---|
| 304 | </listitem>
|
|---|
| 305 |
|
|---|
| 306 | <listitem>
|
|---|
| 307 | <para>
|
|---|
| 308 | &product-name; does not provide Guest Additions for Mac OS
|
|---|
| 309 | X at this time.
|
|---|
| 310 | </para>
|
|---|
| 311 | </listitem>
|
|---|
| 312 |
|
|---|
| 313 | <listitem>
|
|---|
| 314 | <para>
|
|---|
| 315 | The graphics resolution currently defaults to 1024x768 as
|
|---|
| 316 | Mac OS X falls back to the built-in EFI display support.
|
|---|
| 317 | See <xref linkend="efividmode" /> for more information on
|
|---|
| 318 | how to change EFI video modes.
|
|---|
| 319 | </para>
|
|---|
| 320 | </listitem>
|
|---|
| 321 |
|
|---|
| 322 | <listitem>
|
|---|
| 323 | <para>
|
|---|
| 324 | Mac OS X guests only work with one CPU assigned to the VM.
|
|---|
| 325 | Support for SMP will be provided in a future release.
|
|---|
| 326 | </para>
|
|---|
| 327 | </listitem>
|
|---|
| 328 |
|
|---|
| 329 | <listitem>
|
|---|
| 330 | <para>
|
|---|
| 331 | Depending on your system and version of Mac OS X, you
|
|---|
| 332 | might experience guest hangs after some time. This can be
|
|---|
| 333 | fixed by turning off energy saving. Set timeout to "Never"
|
|---|
| 334 | in the system preferences.
|
|---|
| 335 | </para>
|
|---|
| 336 | </listitem>
|
|---|
| 337 |
|
|---|
| 338 | <listitem>
|
|---|
| 339 | <para>
|
|---|
| 340 | By default, the &product-name; EFI enables debug output of
|
|---|
| 341 | the Mac OS X kernel to help you diagnose boot problems.
|
|---|
| 342 | Note that there is a lot of output and not all errors are
|
|---|
| 343 | fatal. They would also show when using a physical Apple
|
|---|
| 344 | Macintosh computer. You can turn off these messages by
|
|---|
| 345 | using the following command:
|
|---|
| 346 | </para>
|
|---|
| 347 |
|
|---|
| 348 | <screen>VBoxManage setextradata "VM name" "VBoxInternal2/EfiBootArgs" " "</screen>
|
|---|
| 349 |
|
|---|
| 350 | <para>
|
|---|
| 351 | To revert to the previous behavior, use the following
|
|---|
| 352 | command:
|
|---|
| 353 | </para>
|
|---|
| 354 |
|
|---|
| 355 | <screen>VBoxManage setextradata "VM name" "VBoxInternal2/EfiBootArgs" ""</screen>
|
|---|
| 356 | </listitem>
|
|---|
| 357 |
|
|---|
| 358 | <listitem>
|
|---|
| 359 | <para>
|
|---|
| 360 | It is currently not possible to start a Mac OS X guest in
|
|---|
| 361 | safe mode by specifying "-x" option in
|
|---|
| 362 | "VBoxInternal2/EfiBootArgs" extradata.
|
|---|
| 363 | </para>
|
|---|
| 364 | </listitem>
|
|---|
| 365 |
|
|---|
| 366 | </itemizedlist>
|
|---|
| 367 | </listitem>
|
|---|
| 368 |
|
|---|
| 369 | <listitem>
|
|---|
| 370 | <para>
|
|---|
| 371 | <emphasis role="bold">Oracle Solaris hosts:</emphasis>
|
|---|
| 372 | </para>
|
|---|
| 373 |
|
|---|
| 374 | <itemizedlist>
|
|---|
| 375 |
|
|---|
| 376 | <listitem>
|
|---|
| 377 | <para>
|
|---|
| 378 | There is no support for USB devices connected to Oracle
|
|---|
| 379 | Solaris 10 hosts.
|
|---|
| 380 | </para>
|
|---|
| 381 | </listitem>
|
|---|
| 382 |
|
|---|
| 383 | <listitem>
|
|---|
| 384 | <para>
|
|---|
| 385 | USB support on Oracle Solaris hosts requires Oracle
|
|---|
| 386 | Solaris 11 version snv_124 or later. Webcams and other
|
|---|
| 387 | isochronous devices are known to have poor performance.
|
|---|
| 388 | </para>
|
|---|
| 389 | </listitem>
|
|---|
| 390 |
|
|---|
| 391 | <listitem>
|
|---|
| 392 | <para>
|
|---|
| 393 | Host Webcam passthrough is restricted to 640x480 frames at
|
|---|
| 394 | 20 frames per second due to limitations in the Oracle
|
|---|
| 395 | Solaris V4L2 API. This may be addressed in a future Oracle
|
|---|
| 396 | Solaris release.
|
|---|
| 397 | </para>
|
|---|
| 398 | </listitem>
|
|---|
| 399 |
|
|---|
| 400 | <listitem>
|
|---|
| 401 | <para>
|
|---|
| 402 | No ACPI information, such as battery status or power
|
|---|
| 403 | source, is reported to the guest.
|
|---|
| 404 | </para>
|
|---|
| 405 | </listitem>
|
|---|
| 406 |
|
|---|
| 407 | <listitem>
|
|---|
| 408 | <para>
|
|---|
| 409 | No support for using wireless adapters with bridged
|
|---|
| 410 | networking.
|
|---|
| 411 | </para>
|
|---|
| 412 | </listitem>
|
|---|
| 413 |
|
|---|
| 414 | <listitem>
|
|---|
| 415 | <para>
|
|---|
| 416 | Crossbow-based bridged networking on Oracle Solaris 11
|
|---|
| 417 | hosts does not work directly with aggregate links.
|
|---|
| 418 | However, you can use
|
|---|
| 419 | <computeroutput>dladm</computeroutput> to manually create
|
|---|
| 420 | a VNIC over the aggregate link and use that with a VM.
|
|---|
| 421 | This limitation does not exist in Oracle Solaris 11u1
|
|---|
| 422 | build 17 and newer.
|
|---|
| 423 | </para>
|
|---|
| 424 | </listitem>
|
|---|
| 425 |
|
|---|
| 426 | </itemizedlist>
|
|---|
| 427 | </listitem>
|
|---|
| 428 |
|
|---|
| 429 | <listitem>
|
|---|
| 430 | <para>
|
|---|
| 431 | <emphasis role="bold">Guest Additions of version 4.1, 4.1.2
|
|---|
| 432 | and 4.1.4 for Windows.</emphasis> The &product-name; WDDM
|
|---|
| 433 | Video driver may be installed and remain in the guest system
|
|---|
| 434 | when Guest additions uninstallation is performed. This is
|
|---|
| 435 | caused by a bug in Guest Additions uninstaller.
|
|---|
| 436 | </para>
|
|---|
| 437 |
|
|---|
| 438 | <note>
|
|---|
| 439 | <para>
|
|---|
| 440 | This does <emphasis>not</emphasis> apply to a Guest
|
|---|
| 441 | Additions update. Installing one version of Guest Additions
|
|---|
| 442 | on top of another works correctly.
|
|---|
| 443 | </para>
|
|---|
| 444 | </note>
|
|---|
| 445 |
|
|---|
| 446 | <para>
|
|---|
| 447 | To solve this problem, uninstall the &product-name; WDDM Video
|
|---|
| 448 | driver manually. Open Device Manager, and check whether the
|
|---|
| 449 | Display Adapter is named "&product-name; Graphics Adapter ..".
|
|---|
| 450 | If not, there is nothing to be done. If it is, right-click the
|
|---|
| 451 | &product-name; Graphics Adapter in Device Manager, select
|
|---|
| 452 | <emphasis role="bold">Uninstall</emphasis>, check
|
|---|
| 453 | <emphasis role="bold">Delete the Driver Software for this
|
|---|
| 454 | Device</emphasis> and click
|
|---|
| 455 | <emphasis role="bold">OK</emphasis>. Once uninstallation is
|
|---|
| 456 | done, start Device Manager, go to the
|
|---|
| 457 | <emphasis role="bold">Action</emphasis> menu and select
|
|---|
| 458 | <emphasis role="bold">Scan for Hardware Change</emphasis>s to
|
|---|
| 459 | ensure that the correct Windows default driver be picked up
|
|---|
| 460 | for the Graphics adapter.
|
|---|
| 461 | </para>
|
|---|
| 462 | </listitem>
|
|---|
| 463 |
|
|---|
| 464 | <listitem>
|
|---|
| 465 | <para>
|
|---|
| 466 | Neither <emphasis>virtio</emphasis> nor <emphasis>Intel
|
|---|
| 467 | PRO/1000 </emphasis> drivers for <emphasis role="bold">Windows
|
|---|
| 468 | XP guests</emphasis> support segmentation offloading.
|
|---|
| 469 | Therefore Windows XP guests have slower transmission rates
|
|---|
| 470 | comparing to other guest types. Refer to MS Knowledge base
|
|---|
| 471 | article 842264 for additional information.
|
|---|
| 472 | </para>
|
|---|
| 473 | </listitem>
|
|---|
| 474 |
|
|---|
| 475 | <listitem>
|
|---|
| 476 | <para>
|
|---|
| 477 | <emphasis role="bold">Guest Additions for OS/2.</emphasis>
|
|---|
| 478 | Seamless windows and automatic guest resizing will probably
|
|---|
| 479 | never be implemented due to inherent limitations of the OS/2
|
|---|
| 480 | graphics system.
|
|---|
| 481 | </para>
|
|---|
| 482 | </listitem>
|
|---|
| 483 |
|
|---|
| 484 | <listitem>
|
|---|
| 485 | <para>
|
|---|
| 486 | Some guest operating systems predating ATAPI CD-ROMs may
|
|---|
| 487 | exhibit long delays or entirely fail to boot in certain
|
|---|
| 488 | configurations. This is most likely to happen when an
|
|---|
| 489 | IDE/ATAPI CD-ROM exists alone on a primary or secondary IDE
|
|---|
| 490 | channel.
|
|---|
| 491 | </para>
|
|---|
| 492 |
|
|---|
| 493 | <para>
|
|---|
| 494 | Affected operating systems are MS OS/2 1.21: fails to boot
|
|---|
| 495 | with an error message referencing COUNTRY.SYS and MS OS/2 1.3:
|
|---|
| 496 | long boot delays. To avoid such problems, disable the emulated
|
|---|
| 497 | IDE/ATAPI CD-ROM. The guest OS cannot use this device, anyway.
|
|---|
| 498 | </para>
|
|---|
| 499 | </listitem>
|
|---|
| 500 |
|
|---|
| 501 | </itemizedlist>
|
|---|
| 502 |
|
|---|
| 503 | </sect1>
|
|---|
| 504 |
|
|---|
| 505 | </chapter>
|
|---|
