cannot mount USB disks even after selinux update for Windows VM

[Paul Lambert]

I have searched the bug list to resolve this problem and after making
the same changes as others still am not able to get external USB disks
to mount to my Windows virt machine.

current versions
qemu-system-x86-2.0.10.5-3.fc11
selinux-policy-doc-3..6.12.62.fc11

1) The first problem encountered was a SELinux matter that updating to
.62 corrected.  There was no virt_use_usb parameter in the version
that was previously installed.  The absence of this SELinux permission
disallowed access to /sbin/ifconig generating a selinux permission
error

2) Next I received a "broken pipe" error.  I then tried commenting out
the line containing
"nss_initgroups_ignoreusers" in /etc/ldap.conf which was documented in
the bug list and has worked for others.  This did not work for me.

Current status is the shown below from the virt machine log file.

LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/bin/qemu-kvm -S -M pc -m 768 -s
mp 2 -name Windows-XP-SP3-Home -uuid ee3bc9fe-a724-45b5-b675-11251f5c453f -monit
or pty -pidfile /var/run/libvirt/qemu//Windows-XP-SP3-Home.pid -boot c -drive fi
le=/var/lib/libvirt/images/Windows-XP-SP3-Home.img,if=ide,index=0,boot=on -drive
 file=,if=ide,media=cdrom,index=2 -net nic,macaddr=54:52:00:7e:1c:92,vlan=0,mode
l=virtio -net tap,fd=17,vlan=0 -serial pty -parallel none -usb -usbdevice tablet
 -vnc 127.0.0.1:0 -usbdevice host:1d6b:0002
char device redirected to /dev/pts/0
char device redirected to /dev/pts/1
husb: open device 2.1
husb: config #1 need -1
husb: 1 interfaces claimed for configuration 1
husb: grabbed usb device 2.1
usb_linux_update_endp_table: Broken pipe
Warning: could not add USB device host:1d6b:0002

[Richard W.M. Jones]

On Sun, Jul 12, 2009 at 11:35:59AM -0400, Paul Lambert wrote:
>  I have searched the bug list to resolve this problem and after
> making
>  the same changes as others still am not able to get external USB disks
>  to mount to my Windows virt machine. 
You've read Mark's thread?

http://www.redhat.com/archives/fedora-virt/2009-June/msg00182.html

Rich.

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top

[Mark McLoughlin]

On Sun, 2009-07-12 at 11:35 -0400, Paul Lambert wrote:
>  LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/bin/qemu-kvm -S -M
> pc -m 768 -s
>  mp 2 -name Windows-XP-SP3-Home -uuid ee3bc9fe-a724-45b5-b675-11251f5c453f -monit
>  or pty -pidfile /var/run/libvirt/qemu//Windows-XP-SP3-Home.pid -boot c -drive fi
>  le=/var/lib/libvirt/images/Windows-XP-SP3-Home.img,if=ide,index=0,boot=on -drive
>   file=,if=ide,media=cdrom,index=2 -net nic,macaddr=54:52:00:7e:1c:92,vlan=0,mode
>  l=virtio -net tap,fd=17,vlan=0 -serial pty -parallel none -usb -usbdevice tablet
>   -vnc 127.0.0.1:0 -usbdevice host:1d6b:0002
>  char device redirected to /dev/pts/0
>  char device redirected to /dev/pts/1
>  husb: open device 2.1
>  husb: config #1 need -1
>  husb: 1 interfaces claimed for configuration 1
>  husb: grabbed usb device 2.1
>  usb_linux_update_endp_table: Broken pipe
>  Warning: could not add USB device host:1d6b:0002 
That looks like a bug.

Try capturing the output of:

  $> strace -f -ttt qemu-kvm -M pc -m 768 -smp 2 -drive
file=/var/lib/libvirt/images/Windows-XP-SP3-Home.img -net
nic,macaddr=54:52:00:7e:1c:92,model=virtio -net user -serial pty -parallel none -usb
-usbdevice tablet -vnc 127.0.0.1:0 -usbdevice host:1d6b:0002 -monitor stdio > t.log
2>&1

Cheers,
Mark.