[Libguestfs] Can I use virt-filesystem on a running VM?

[Richard W.M. Jones]

I think I know what the problem is here actually.  When we run
libguestfs with the libvirt backend[1], libvirt will try to relabel
the disks that we're trying to access.  In the process it may relabel
them in a way that makes them inaccessible to the original guest.

There are a couple of ways to avoid this.  The simpler one is to avoid
using the libvirt backend altogether:

  export LIBGUESTFS_BACKEND=direct

The other one is to use the '-d' option (instead of '-a') which should
cause libguestfs to copy the SELinux label to libvirt and (if
everything goes well) will cause libvirt to use the correct label.

Rich.

[1] https://libguestfs.org/guestfs.3.html#backend

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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