# Example showing how to inspect a virtual machine disk. import sys import guestfs assert(len(sys.argv) == 2) disk = sys.argv[1] # All new Python code should pass python_return_dict=True # to the constructor. It indicates that your program wants # to receive Python dicts for methods in the API that return # hashtables. g = guestfs.GuestFS(python_return_dict=True) # Attach the disk image read-only to libguestfs. g.add_drive_opts(disk, readonly=1) # Run the libguestfs back-end. g.launch() # Ask libguestfs to inspect for operating systems. roots = g.inspect_os() if len(roots) == 0: raise(Error("inspect_vm: no operating systems found")) for root in roots: print "Root device: %s" % root # Print basic information about the operating system. print " Product name: %s" % (g.inspect_get_product_name(root)) print " Version: %d.%d" % \ (g.inspect_get_major_version(root), g.inspect_get_minor_version(root)) print " Type: %s" % (g.inspect_get_type(root)) print " Distro: %s" % (g.inspect_get_distro(root)) # Mount up the disks, like guestfish -i. # # Sort keys by length, shortest first, so that we end up # mounting the filesystems in the correct order. mps = g.inspect_get_mountpoints(root) def compare(a, b): return len(a) - len(b) for device in sorted(mps.keys(), compare): try: g.mount_ro(mps[device], device) except RuntimeError as msg: print "%s (ignored)" % msg # If /etc/issue.net file exists, print up to 3 lines. filename = "/etc/issue.net" if g.is_file(filename): print "--- %s ---" % filename lines = g.head_n(3, filename) for line in lines: print line # Unmount everything. g.umount_all()