ubuntu | Could not open the medium

[Dlls]

Hi everyone.
My first sorry for my English.
A few days ago I opened virtualbox and found the following:
Could not open the medium '/media/dlls/00089427000F5A16/.vdi'.
VD: error VERR_ACCESS_DENIED opening image file '/media/dlls/00089427000F5A16/.vdi' (VERR_ACCESS_DENIED).
Detail：
返回 代码:
NS_ERROR_FAILURE (0x80004005)
组件:
Medium
界面:
IMedium {29989373-b111-4654-8493-2e1176cba890}

1.ubuntu 13.10 64bit. A few days ago updated

2.when i started with Terminal:
dlls@dlls-QJU4:~$ virtualbox
Fontconfig error: Cannot load default config file
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "" under id 16
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "暂停(&P)" under id 17
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "重启 (&R)" under id 18
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "清除保存的状态(&I)..." under id 24
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "刷新(&F)..." under id 25
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "用文件管理器查看" under id 27
Qt WARNING: void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "创建桌面快捷方式" under id 28

3.Where the disk format of my vdi;
/dev/sda10 389482496 976768064 293642784+ 7 HPFS/NTFS/exFAT

Where is wrong, why and how to correct. Thanks

[Perryg]

What is the host?

[Dlls]

What is the host?

1.Host: ubuntu 13.10 64bit,
2.Virtual Systems:[ubuntu 13.10 64][win 7]

When i started with Terminal: virtualbox --startvm linux
Fontconfig error: Cannot load default config file

Could not open the medium '/media/dlls/00089427000F5A16/linux.vdi'.
VD: error VERR_ACCESS_DENIED opening image file '/media/dlls/00089427000F5A16/linux.vdi' (VERR_ACCESS_DENIED).
Detail:

返回 代码:
NS_ERROR_FAILURE (0x80004005)
组件:
Medium
界面:
IMedium {29989373-b111-4654-8493-2e1176cba890}

[socratis]

VERR_ACCESS_DENIED

Check that you have read-write access to the VDI.