print >>sys.stderr,"Cannot make snapshot of running VW"
        sys.exit(1)
    drives=get_drives(options.dir)
    os.chdir(options.dir)
    newnames={}
    for i in drives:
        name,ext=os.path.splitext(i)
        newnames[i]=name+"."+options.snapname+"."+ext
        if os.path.exists(newnames[i]):
            print >>sys.stderr,"Snapshot %s already exists",options.snapname
            return 1
    for i in drives:
        os.rename(i,newnames[i])
        os.system("qemu-img create -f qcow2 -b \"%s\" \"%s\"" %(i,newnames[i]))
    return 0

def cmd_snapshots(options): 
    os.chdir(options.dir)
    drives = get_drives(options.dir)
    lst=[]
    info={}