def get_lvm_dev():
output = read_cmd("pvdisplay")
m = re.search("\s+PV Name\s+([^\s]+)\s+", output)
if m != None:
dev = m.group(1)
return dev.split("/")[2]
return None
def get_symlink_dest(link):
cmd = "ls -l %s" % link
out = read_cmd(cmd)
sep = "->"
out = out.split(sep)
return out[1].strip()