char **ret = NULL;
int size = 0, alloc = 0;
- const char *blkid[] = {"blkid", "-p", "-i", "-o", "export", device, NULL};
- r = commandv(&out, &err, blkid);
+ r = command (&out, &err,
+ "blkid",
+ /* Adding -c option kills all caching, even on RHEL 5. */
+ "-c", "/dev/null",
+ "-p", "-i", "-o", "export", device, NULL);
if (r == -1) {
reply_with_error("%s", err);
goto error;