sorry if this is already known/fixed: Assemble() is called from mdadm.c with the "update" argument equal to NULL: Assemble(ss, array_list->devname, mdfd, array_list, configfile, NULL, readonly, runstop, NULL, verbose-quiet, force); But in Assemble.c we have if (ident->uuid_set && (!update && strcmp(update, "uuid")!= 0) && ... which yields a segfault in glibc's strcmp(). Andre -- Jesus not only saves, he also frequently makes backups - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html