##教程原文

The following commands will forward TCP traffic that originates from port 2222 on your host OS to port 22 on your guest OS:

$ VBoxManage setextradata "VM Name Here" \
      "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/Protocol" TCP

$ VBoxManage setextradata "VM Name Here" \
      "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/GuestPort" 22


$ VBoxManage setextradata "VM Name Here” \
      "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/HostPort" 2222

##我自己的配置

kk@dns:~$ VBoxManage setextradata xp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/Protocol" TCP
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

kk@dns:~$ VBoxManage setextradata xp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/GuestPort" 3389
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

kk@dns:~$ VBoxManage setextradata xp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/guestssh/HostPort" 3389
Sun VirtualBox Command Line Management Interface Version 3.1.6_OSE
(C) 2005-2010 Sun Microsystems, Inc.
All rights reserved.

virtualbox-guest-additions

journalctl -b -u virtualbox-guest-additions

-- Logs begin at Mon 2017-11-13 08:36:04 CST, end at Fri 2018-05-04 11:21:05 CST. --
May 04 11:14:48 kenneth systemd[1]: Starting VirtualBox Guest Additions...
May 04 11:14:48 kenneth systemd[1]: Started VirtualBox Guest Additions.
May 04 11:14:48 kenneth vboxguest-service[228]: VBoxService 5.2.10 r121806 (verbosity: 0) linux.amd64 (May  4 2018 11:13:07) release log
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.000088 main     Log opened 2018-05-04T03:14:48.426741000Z
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.013828 main     OS Product: Linux
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.014307 main     OS Release: 4.9.95-gentoo
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.027808 main     OS Version: #1 SMP Fri May 4 09:28:39 CST 2018
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.044893 main     Executable: /usr/sbin/vboxguest-service
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.044896 main     Process ID: 228
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.044897 main     Package type: LINUX_64BITS_GENERIC (OSE)
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.053270 main     5.2.10 r121806 started. Verbose level = 0
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.149165 automount vbsvcAutoMountWorker: Shared folder 'Downloads' was mounted to '/media>
May 04 11:14:48 kenneth vboxguest-service[228]: 00:00:00.274294 automount Error: vbsvcAutoMountWorker: Could not mount shared folder 'Z_DRIVE' t>

/lib/systemd/system/virtualbox-guest-additions.service

[Unit]
Description=VirtualBox Guest Additions
ConditionVirtualization=oracle
Before=display-manager.service

[Service]
Type=simple
ExecStartPre=/sbin/modprobe vboxguest
ExecStartPre=/sbin/modprobe vboxsf
ExecStart=/usr/sbin/vboxguest-service --foreground
ExecStopPost=/sbin/modprobe -r vboxsf
ExecStopPost=/sbin/modprobe -r vboxguest
PIDFile=/var/run/vboxguest-service.pid

[Install]
WantedBy=multi-user.target

Module vboxguest and vboxsf missing

  • Try to emerge @module-rebuild.

virtualbox 瘦身

  • 确认vm的分区没有压缩（如果压缩不能用空文件填空间）, 查找有没有compress=lzo
mount | grep compress
  • 对vm进行0文件填充，并删掉、关机。
sudo sh -c 'dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k ; rm -f /var/tmp/bigemptyfile ; shutdown -h now' &
  • 对vdi文件进行压缩
VBoxManage modifyhd wini7.vdi compact