Can't use removable storage media with Salix 14.0

[zAchAry]

After I have installed VirtualBox-4.2.6-82870-Linux_x86.run Thunar (also Caja) fail to display removable storage media.

The things I am able to do and when:

• I can use USB keyboard, mouse, scanner with Salix OS.
• I can access to storage media only via VirtualBox.

[zAchAry]

More information: I have executed VirtualBox from terminal as root, by mistake.

Please help.

[laprjns]

More information: I have executed VirtualBox from terminal as root, by mistake.

This shouldn't be the root cause of the problem, but you going to have to provide a lot more information before anyone can even attempt to help.
Can the host system access the devices when VB is not running? What are you trying to do when this happens. We need as much information as you can provide.

[zAchAry]

I do not know where to start.

Can the host system access the devices when VB is not running?

No.

What are you trying to do when this happens. We need as much information as you can provide.

I am expecting to see a removable device in file manager sidebar.

I can always see all USB devices (Scanners, Mouse, Keyboard and also removable storage devices) with:

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$ lsusb

I suspect it is a permission issue. The directory file:///media/disk is inaccessible to non-root users.

[mimosa]

If I remember correctly, VB (or some aspect of it) gets started on boot as a service, even if you're not actually running it as such.

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service list

If it is indeed so, you could try stopping the service (and maybe rebooting for good measure) and see if there is any change.

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service stop virtualbox

Another thought - anything untoward in /etc/fstab?

[zAchAry]

If I remember correctly, VB (or some aspect of it) gets started on boot as a service, even if you're not actually running it as such.

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service list

If it is indeed so, you could try stopping the service (and maybe rebooting for good measure) and see if there is any change.

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service stop virtualbox

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# service stop vboxautostart-service
Stopping the vboxautostart-service service
# service stop vboxballoonctrl-service
Stopping the vboxballoonctrl-service service
# service stop vboxdrv
Stopping the vboxdrv service
Stopping VirtualBox kernel modules ...done.
# service stop vboxweb-service
Stopping the vboxweb-service service

I will report after I will reboot.

Another thought - anything untoward in /etc/fstab?

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/dev/sda2        swap             swap        defaults         0   0
/dev/sda1        /                ext4        defaults,noatime 1   1
/dev/sda3        /home            ext4        defaults,noatime 1   2
#/dev/cdrom      /mnt/cdrom       auto        noauto,owner,ro  0   0
/dev/fd0         /mnt/floppy      auto        noauto,users,rw,umask=00 0   0
devpts           /dev/pts         devpts      gid=5,mode=620   0   0
proc             /proc            proc        defaults         0   0
tmpfs            /dev/shm         tmpfs       defaults         0   0

[laprjns]

The directory file:///media/disk is inaccessible to non-root users.

14.0 mounts removable drives on:
/run/media/{user}

If you still are having problems after you reboot, then plug in a usb stick and post the output of mount. For reference, here's the output of mount on my labtop with a usb stick plugged:
root[rich]# mount

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/dev/sda3 on / type xfs (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /vista type fuseblk (rw,allow_other,blksize=4096,default_permissions)
gvfs-fuse-daemon on /home/rich/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=rich)
/dev/sdb1 on /run/media/rich/3226-E9D9 type vfat (rw,nosuid,nodev,uid=1000,gid=100,shortname=mixed,dmask=0077,utf8=1,showexec,uhelper=udisks2)

[zAchAry]

The directory file:///media/disk is inaccessible to non-root users.

14.0 mounts removable drives on:
/run/media/{user}

I do not have a media directory.

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$ ls /run
mount  udev

[djemos]

VirtualBox at installation time creates a description file for udev, if that is present, which makes the USB accesible to all users in the vboxusers group.

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ls -l /etc/udev/rules.d/10-vboxdrv.rules 
-rw-r--r-- 1 root root 573 Σεπ   8 14:05 /etc/udev/rules.d/10-vboxdrv.rules

here is the file

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cat /etc/udev/rules.d/10-vboxdrv.rules 
KERNEL=="vboxdrv", NAME="vboxdrv", OWNER="root", GROUP="root", MODE="0600"
SUBSYSTEM=="usb_device", ACTION=="add", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass}"
SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass}"
SUBSYSTEM=="usb_device", ACTION=="remove", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh --remove $major $minor"
SUBSYSTEM=="usb", ACTION=="remove", ENV{DEVTYPE}=="usb_device", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh --remove $major $minor"

check if vboxusers group exist

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cat /etc/group | grep vboxusers

after installation you need to put every user which should be able to access USB devices from virtualBox guests in the group vboxusers, either through the GUI user management tools or by running the following command as root:

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usermod -a -G vboxusers username

[zAchAry]

If you still are having problems after you reboot, then plug in a usb stick and post the output of mount. For reference, here's the output of mount on my labtop with a usb stick plugged:
root[rich]# mount

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/dev/sda3 on / type xfs (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /vista type fuseblk (rw,allow_other,blksize=4096,default_permissions)
gvfs-fuse-daemon on /home/rich/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=rich)
/dev/sdb1 on /run/media/rich/3226-E9D9 type vfat (rw,nosuid,nodev,uid=1000,gid=100,shortname=mixed,dmask=0077,utf8=1,showexec,uhelper=udisks2)

Still inaccessible:

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# mount
/dev/sda1 on / type ext4 (rw,noatime)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
/dev/sda3 on /home type ext4 (rw,noatime)
tmpfs on /dev/shm type tmpfs (rw)
gvfs-fuse-daemon on /home/zack/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=zack)

VirtualBox at installation time creates a description file for udev, if that is present, which makes the USB accesible to all users in the vboxusers group.

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ls -l /etc/udev/rules.d/10-vboxdrv.rules 
-rw-r--r-- 1 root root 573 Σεπ   8 14:05 /etc/udev/rules.d/10-vboxdrv.rules

here is the file

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$ cat /etc/udev/rules.d/10-vboxdrv.rules 
KERNEL=="vboxdrv", NAME="vboxdrv", OWNER="root", GROUP="root", MODE="0600"
KERNEL=="vboxnetctl", NAME="vboxnetctl", OWNER="root", GROUP="root", MODE="0600"
SUBSYSTEM=="usb_device", ACTION=="add", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass}"
SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass}"
SUBSYSTEM=="usb_device", ACTION=="remove", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh --remove $major $minor"
SUBSYSTEM=="usb", ACTION=="remove", ENV{DEVTYPE}=="usb_device", RUN+="/opt/VirtualBox/VBoxCreateUSBNode.sh --remove $major $minor"

check vboxusers group exist

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cat /etc/group | grep vboxusers

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$ cat /etc/group | grep vboxusers
vboxusers:x:1000:zack

after installation you need to put every user which should be able to access USB devices from virtualBox guests in the group vboxusers, either through the GUI user management tools or by running the following command as root:

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usermod -a -G vboxusers username

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