无法完成安装:'Cannot access storage file '/

今天自己编译了spice-protocol spice-gtk spice qemu,然后想用virsh去创建一个虚机：

# virsh define demo.xml

    定义域 demo（从 demo.xml）

# virsh start demo

    cannot access storage file (as uid:107, gid:107)  permission denied

解决方法：

Changing /etc/libvirt/qemu.conf make working things.
Uncomment user/group to work as root.

1.  
   # The user for QEMU processes run by the system instance. It can be
2.  
   # specified as a user name or as a user id. The qemu driver will try to
3.  
   # parse this value first as a name and then, if the name doesn't exist,
4.  
   # as a user id.
5.  
   #
6.  
   # Since a sequence of digits is a valid user name, a leading plus sign
7.  
   # can be used to ensure that a user id will not be interpreted as a user
8.  
   # name.
9.  
   #
10.  
    # Some examples of valid values are:
11.  
    #
12.  
    # user = "qemu" # A user named "qemu"
13.  
    # user = "+0" # Super user (uid=0)
14.  
    # user = "100" # A user named "100" or a user with uid=100
15.  
    #
16.  
    user = "root"
17.  
     
18.  
    # The group for QEMU processes run by the system instance. It can be
19.  
    # specified in a similar way to user.
20.  
    group = "root"
21.  
     
22.  
    # Whether libvirt should dynamically change file ownership
23.  
    # to match the configured user/group above. Defaults to 1.
24.  
    # Set to 0 to disable file ownership changes.
25.  
    #dynamic_ownership = 1

文章

 

 

cat /etc/passwd

qemu:x:107:107:qemu user:/:/sbin/nologin

ll /root/x.qcow2

-rwxrwxrwx 1 qemu qemu 1957691392 Dec  1 14:16 /root/x.qcow2

在各种权限都对的情况下，依然不能create

sed -i 's/#vnc_listen = "0.0.0.0"/vnc_listen = "0.0.0.0"/g' /etc/libvirt/qemu.conf

sed -i 's/#group = "root"/group = "root"/g' /etc/libvirt/qemu.conf

sed -i 's/#user = "root"/user = "root"/g' /etc/libvirt/qemu.conf

service libvirtd restart

UUID=0654F28654F277AF  /media/h1/newsntfs          ntfs    defaults,nls=utf8,umask=111,uid=0,gid=0,dmask=000,fmask=000        0      0