def clean_pstore(): """Remove files stored in nonvolatile ram created by the pstore subsystem. Files in pstore are Linux (not distribution) specific, but we want to make sure the entirety of them are removed so as to ensure that there is sufficient free space on the flash part. On some machines this will take effect immediately, which is the best case. Unfortunately on some, an intervening reboot is needed. """ util.dir_tree_map("/sys/fs/pstore", os.unlink, files=True, dirs=False)