使用控制台中的模拟器"/dev/kvm设备:权限被拒绝"的Android Studio 2.3.对于root用户 [英] Android Studio 2.3 using emulator from console, "/dev/kvm device: permission denied" for root user

问题描述

我正在尝试启动使用 Android Studio 2.3 的avdmanager创建的虚拟android设备(通过命令行)

I'm trying to start a virtual android device which I created with the avdmanager of Android Studio 2.3 (via command line)

所有命令均以 root用户

当我尝试通过$ ~/Android/Sdk/tools/./emulator @Nexus_5X_Api_23_x86启动仿真器时，输出为:

when i try to start the emulator via $ ~/Android/Sdk/tools/./emulator @Nexus_5X_Api_23_x86 the output is:

emulator: ERROR: x86_64 emulation currently requires hardware acceleration!
Please ensure KVM is properly installed and usable.
CPU acceleration status: This user doesn't have permissions to use KVM (/dev/kvm)

我使用的是64位的Ubuntu 16.04服务器，Android Studio是通过x11转发启动的，因此使用了我的桌面环境(也是64位的ubuntu 16.04！)

I'm using an Ubuntu 16.04 server with 64-Bit, Android Studio is started via x11 forwarding so my desktop environment is used (which is an ubuntu 16.04, 64-Bit too!)

当我键入$ kvm-ok时，它会给我:

when i'm typing $ kvm-ok it gives me:

INFO: /dev/kvm exists
KVM acceleration can be used

要证明我尝试访问的.avd存在:

To proof that the .avd I'm trying to access exists:

$ ~/Android/Sdk/tools/bin/./avdmanager list avd

给出输出:

März 15, 2017 4:30:53 NACHM. sun.util.PropertyResourceBundleCharset$PropertiesFileDecoder decodeLoop
INFO: Invalid or unmappable UTF-8 sequence detected. Switching encoding from UTF-8 to ISO-8859-1
Available Android Virtual Devices:
    Name: Nexus_5X_Api_23_x86
  Device: Nexus 5X (Google)
    Path: /root/.android/avd/Nexus_5X_Api_23_x86.avd
  Target: Google APIs (Google Inc.)
          Based on: Android 6.0 (Marshmallow) Tag/ABI: google_apis/x86_64
  Sdcard: 800M

/dev/kvm的权限还包括:

root@h2627852:~# ls -l /dev/kvm
crwxrwxrwx 1 root kvm 10, 232 Mär 15 10:48 /dev/kvm
root@h2627852:~# groups root
root : root kvm libvirtd libvirt

执行emulator-check给我:

root@h2627852:~# ~/Android/Sdk/tools/./emulator-check accel hyper-v cpu-info window-mgr desktop-env
accel:
11
This user doesn't have permissions to use KVM (/dev/kvm)
accel
hyper-v:
0
Hyper-V runs only on Windows
hyper-v
cpu-info:
146
Intel CPU|Virtualization is supported|64-bit CPU|
cpu-info
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384
debug1: client_request_x11: request from ::1 36346
debug1: channel 1: new [x11]
debug1: confirm x11
debug1: channel 1: FORCE input drain
window-mgr:
0
GNOME Shell
window-mgr
desktop-env:
0
mate
desktop-env

我真的不知道该怎么办，在论坛上搜索了所有内容，但没有找到适用于我系统的该问题的副本，对于其他系统上的同一问题的修复已经对我不起作用尝试完全清除并重新安装所有qemu，libvirt，libvirtd和kvm软件包，但均未成功.

I really don't know what to do anymore, searched all over the forum but didn't found a replicate of this problem for my system, the fixes for the same problem on other systems doesn't worked for me, already tried to completely purge and reinstall all qemu, libvirt, libvirtd and kvm packages without success.

感谢您的帮助！

~/Android/Sdk/tools/./emulator @Nexus_5X_Api_23_x86 -verbose给我，

以下输出:

emulator:Android emulator version 25.3.0.0 (build_id 3394391)
emulator:Found AVD name 'Nexus_5X_Api_23_x86'
emulator:Found AVD target architecture: x86_64
emulator:argv[0]: '/root/Android/Sdk/tools/./emulator'; program directory: '/root/Android/Sdk/tools'
emulator:  Found directory: /root/Android/Sdk/system-images/android-23/google_apis/x86_64/

emulator:Probing for /root/Android/Sdk/system-images/android-23/google_apis/x86_64//kernel-ranchu: file exists
emulator:Auto-config: -engine qemu2 (based on configuration)
emulator:  Found directory: /root/Android/Sdk/system-images/android-23/google_apis/x86_64/

emulator:try dir /root/Android/Sdk/tools
emulator:try dir /root/Android/Sdk/tools/./
emulator:try dir /root/Android/Sdk/emulator
emulator:Found target-specific 64-bit emulator binary: /root/Android/Sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64
emulator:Adding library search path: '/root/Android/Sdk/emulator/lib64'
emulator:Adding library search path: '/root/Android/Sdk/emulator/lib64/libstdc++'
emulator:  Found directory: /root/Android/Sdk/system-images/android-23/google_apis/x86_64/

emulator:  Found directory: /root/Android/Sdk/system-images/android-23/google_apis/x86_64/

emulator:GPU emulation is disabled
emulator: Adding library search path for Qt: '/root/Android/Sdk/emulator/lib64/qt/lib'
emulator: Setting Qt plugin search path: QT_QPA_PLATFORM_PLUGIN_PATH=/root/Android/Sdk/emulator/lib64/qt/plugins
emulator: Running :/root/Android/Sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64
emulator: qemu backend: argv[00] = "/root/Android/Sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64"
emulator: qemu backend: argv[01] = "@Nexus_5X_Api_23_x86"
emulator: qemu backend: argv[02] = "-verbose"
emulator: Concatenated backend parameters:
 /root/Android/Sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64 @Nexus_5X_Api_23_x86 -verbose
emulator: Android virtual device file at: /root/.android/avd/Nexus_5X_Api_23_x86.ini
emulator: virtual device content at /root/.android/avd/Nexus_5X_Api_23_x86.avd
emulator: virtual device config file: /root/.android/avd/Nexus_5X_Api_23_x86.avd/config.ini
emulator: using core hw config path: /root/.android/avd/Nexus_5X_Api_23_x86.avd/hardware-qemu.ini
emulator: Found AVD target API level: 23
emulator: Read property file at /root/Android/Sdk/system-images/android-23/google_apis/x86_64//build.prop
emulator: No boot.prop property file found.
emulator: Warning: config.ini contains invalid skin.path entry: (null)
emulator: autoconfig: -skin HVGA
emulator: autoconfig: -skindir (null)
emulator: autoconfig: -kernel /root/Android/Sdk/system-images/android-23/google_apis/x86_64//kernel-ranchu
emulator: Target arch = 'x86_64'
emulator: Auto-detect: Kernel image requires new device naming scheme.
emulator: Auto-detect: Kernel does not support YAFFS2 partitions.
emulator: autoconfig: -ramdisk /root/Android/Sdk/system-images/android-23/google_apis/x86_64//ramdisk.img
emulator: Using initial system image: /root/Android/Sdk/system-images/android-23/google_apis/x86_64//system.img
emulator: autoconfig: -data /root/.android/avd/Nexus_5X_Api_23_x86.avd/userdata-qemu.img
emulator: autoconfig: -initdata /root/.android/avd/Nexus_5X_Api_23_x86.avd/userdata.img
emulator: autoconfig: -cache /root/.android/avd/Nexus_5X_Api_23_x86.avd/cache.img
emulator: autoconfig: -sdcard /root/.android/avd/Nexus_5X_Api_23_x86.avd/sdcard.img
emulator: Increasing RAM size to 1024MB
emulator: VM heap size 0MB is below hardware specified minimum of 256MB,setting it to that value
emulator: System image is read only
emulator: GPU emulation is disabled
emulator: Found 2 DNS servers: 85.214.7.22 81.169.163.106
emulator: skin name 'HVGA' aliased to '320x480'
emulator: found magic skin width=320 height=480 bpp=16

emulator: CPU Acceleration: DISABLED
emulator: CPU Acceleration status: This user doesn't have permissions to use KVM (/dev/kvm)
emulator: ERROR: x86_64 emulation currently requires hardware acceleration!
Please ensure KVM is properly installed and usable.
CPU acceleration status: This user doesn't have permissions to use KVM (/dev/kvm)

推荐答案

只需尝试一下. 这对我来说是工作

Simply try this. this was work for me

$ sudo chown username -R /dev/kvm

有时您还需要运行此代码

sometimes you need to run this code also

$ cd Android/Sdk/emulator/lib64/libstdc++
$ mv libstdc++.so.6 libstdc++.so.6.bak
$ ln -s /usr/lib64/libstdc++.so.6

这篇关于使用控制台中的模拟器"/dev/kvm设备:权限被拒绝"的Android Studio 2.3.对于root用户的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！