1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/utils/mkfs_lustre.c
38 * Author: Nathan Rutman <nathan@clusterfs.com>
41 /* This source file is compiled into both mkfs.lustre and tunefs.lustre */
45 #endif /* HAVE_CONFIG_H */
57 #include <sys/types.h>
59 #include <sys/mount.h>
60 #include <sys/utsname.h>
68 /* kp30.h is not really needed here, but on SLES10/PPC, fs.h includes idr.h which
69 * requires BITS_PER_LONG to be defined */
70 #include <libcfs/kp30.h>
71 #include <linux/fs.h> /* for BLKGETSIZE64 */
72 #include <linux/version.h>
74 #include <lustre_disk.h>
75 #include <lustre_param.h>
76 #include <lnet/lnetctl.h>
77 #include <lustre_ver.h>
78 #include "mount_utils.h"
84 #define MAX_LOOP_DEVICES 16
85 #define L_BLOCK_SIZE 4096
86 #define INDEX_UNASSIGNED 0xFFFF
87 #define MO_IS_LOOP 0x01
88 #define MO_FORCEFORMAT 0x02
90 /* used to describe the options to format the lustre disk, not persistent */
92 struct lustre_disk_data mo_ldd; /* to be written in MOUNT_DATA_FILE */
93 char mo_device[128]; /* disk device name */
94 char mo_mkfsopts[128]; /* options to the backing-store mkfs */
95 char mo_loopdev[128]; /* in case a loop dev is needed */
96 __u64 mo_device_sz; /* in KB */
104 static int print_only = 0;
105 static int failover = 0;
107 void usage(FILE *out)
109 fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
110 fprintf(out, "usage: %s <target types> [options] <device>\n", progname);
112 "\t<device>:block device or file (e.g /dev/sda or /tmp/ost1)\n"
114 "\t\t--ost: object storage, mutually exclusive with mdt,mgs\n"
115 "\t\t--mdt: metadata storage, mutually exclusive with ost\n"
116 "\t\t--mgs: configuration management service - one per site\n"
117 "\toptions (in order of popularity):\n"
118 "\t\t--mgsnode=<nid>[,<...>] : NID(s) of a remote mgs node\n"
119 "\t\t\trequired for all targets other than the mgs node\n"
120 "\t\t--fsname=<filesystem_name> : default is 'lustre'\n"
121 "\t\t--failnode=<nid>[,<...>] : NID(s) of a failover partner\n"
122 "\t\t--param <key>=<value> : set a permanent parameter\n"
123 "\t\t\te.g. --param sys.timeout=40\n"
124 "\t\t\t --param lov.stripesize=2M\n"
125 "\t\t--index=#N : target index (i.e. ost index within the lov)\n"
126 /* FIXME implement 1.6.x
127 "\t\t--configdev=<altdevice|file>: store configuration info\n"
128 "\t\t\tfor this device on an alternate device\n"
130 "\t\t--comment=<user comment>: arbitrary user string (%d bytes)\n"
131 "\t\t--mountfsoptions=<opts> : permanent mount options\n"
133 "\t\t--backfstype=<fstype> : backing fs type (ext3, ldiskfs)\n"
134 "\t\t--device-size=#N(KB) : device size for loop devices\n"
135 "\t\t--mkfsoptions=<opts> : format options\n"
136 "\t\t--reformat: overwrite an existing disk\n"
137 "\t\t--stripe-count-hint=#N : used for optimizing MDT inode size\n"
139 "\t\t--erase-params : erase all old parameter settings\n"
140 "\t\t--nomgs: turn off MGS service on this MDT\n"
141 "\t\t--writeconf: erase all config logs for this fs.\n"
143 "\t\t--dryrun: just report what we would do; "
144 "don't write to disk\n"
145 "\t\t--verbose : e.g. show mkfs progress\n"
147 (int)sizeof(((struct lustre_disk_data *)0)->ldd_userdata));
151 #define vprint if (verbose > 0) printf
152 #define verrprint if (verbose >= 0) printf
154 /*================ utility functions =====================*/
156 char *strscat(char *dst, char *src, int buflen) {
158 if (strlen(dst) + strlen(src) >= buflen) {
159 fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
160 "\n", buflen, dst, src);
163 return strcat(dst, src);
167 char *strscpy(char *dst, char *src, int buflen) {
169 return strscat(dst, src, buflen);
173 dev_major (unsigned long long int __dev)
175 return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
179 dev_minor (unsigned long long int __dev)
181 return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
186 static int version = 0;
190 char release[4] = "";
192 fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
194 fprintf(stderr, "%s: Warning: Can't resolve kernel "
195 "version, assuming 2.6\n", progname);
197 if (read(fd, release, 4) < 0) {
198 fprintf(stderr, "reading from /proc/sys/kernel"
199 "/osrelease: %s\n", strerror(errno));
205 if (strncmp(release, "2.4.", 4) == 0)
213 static int check_mtab_entry(char *spec)
218 fp = setmntent(MOUNTED, "r");
222 while ((mnt = getmntent(fp)) != NULL) {
223 if (strcmp(mnt->mnt_fsname, spec) == 0) {
225 fprintf(stderr, "%s: according to %s %s is "
226 "already mounted on %s\n",
227 progname, MOUNTED, spec, mnt->mnt_dir);
236 /*============ disk dev functions ===================*/
238 /* Setup a file in the first unused loop_device */
239 int loop_setup(struct mkfs_opts *mop)
245 /* Figure out the loop device names */
246 if (!access("/dev/loop0", F_OK | R_OK))
247 strcpy(loop_base, "/dev/loop\0");
248 else if (!access("/dev/loop/0", F_OK | R_OK))
249 strcpy(loop_base, "/dev/loop/\0");
251 fprintf(stderr, "%s: can't access loop devices\n", progname);
255 /* Find unused loop device */
256 for (i = 0; i < MAX_LOOP_DEVICES; i++) {
258 int cmdsz = sizeof(cmd);
260 sprintf(l_device, "%s%d", loop_base, i);
261 if (access(l_device, F_OK | R_OK))
263 snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
266 /* losetup gets 1 (ret=256) for non-set-up device */
268 /* Set up a loopback device to our file */
269 snprintf(cmd, cmdsz, "losetup %s %s", l_device,
271 ret = run_command(cmd, cmdsz);
273 /* someone else picked up this loop device
277 fprintf(stderr, "%s: error %d on losetup: %s\n",
278 progname, ret, strerror(ret));
281 strscpy(mop->mo_loopdev, l_device,
282 sizeof(mop->mo_loopdev));
287 fprintf(stderr, "%s: out of loop devices!\n", progname);
291 int loop_cleanup(struct mkfs_opts *mop)
295 if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
296 sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
297 ret = run_command(cmd, sizeof(cmd));
302 /* Determine if a device is a block device (as opposed to a file) */
303 int is_block(char* devname)
308 ret = access(devname, F_OK);
311 ret = stat(devname, &st);
313 fprintf(stderr, "%s: cannot stat %s\n", progname, devname);
316 return S_ISBLK(st.st_mode);
319 __u64 get_device_size(char* device)
324 fd = open(device, O_RDONLY);
326 fprintf(stderr, "%s: cannot open %s: %s\n",
327 progname, device, strerror(errno));
332 /* size in bytes. bz5831 */
333 ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
338 ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
339 size = (__u64)lsize * 512;
344 fprintf(stderr, "%s: size ioctl failed: %s\n",
345 progname, strerror(errno));
349 vprint("device size = "LPU64"MB\n", size >> 20);
350 /* return value in KB */
354 int loop_format(struct mkfs_opts *mop)
358 if (mop->mo_device_sz == 0) {
360 fprintf(stderr, "loop device requires a --device-size= "
365 ret = creat(mop->mo_device, S_IRUSR|S_IWUSR);
366 ret = truncate(mop->mo_device, mop->mo_device_sz * 1024);
369 fprintf(stderr, "%s: Unable to create backing store: %d\n",
376 /* Display the need for the latest e2fsprogs to be installed. make_backfs
377 * indicates if the caller is make_lustre_backfs() or not. */
378 static void disp_old_e2fsprogs_msg(const char *feature, int make_backfs)
380 static int msg_displayed;
383 fprintf(stderr, "WARNING: %s does not support %s "
384 "feature.\n\n", E2FSPROGS, feature);
390 fprintf(stderr, "WARNING: The %s package currently installed on "
391 "your system does not support \"%s\" feature.\n",
393 #if !(HAVE_LDISKFSPROGS)
394 fprintf(stderr, "Please install the latest version of e2fsprogs from\n"
395 "http://downloads.lustre.org/public/tools/e2fsprogs/\n"
396 "to enable this feature.\n");
399 fprintf(stderr, "Feature will not be enabled until %s"
400 "is updated and '%s -O %s %%{device}' "
401 "is run.\n\n", E2FSPROGS, TUNE2FS, feature);
404 /* Check whether the file exists in the device */
405 static int file_in_dev(char *file_name, char *dev_name)
408 char debugfs_cmd[256];
409 unsigned int inode_num;
412 /* Construct debugfs command line. */
413 snprintf(debugfs_cmd, sizeof(debugfs_cmd),
414 "%s -c -R 'stat %s' '%s' 2>&1 | egrep '(Inode|unsupported)'",
415 DEBUGFS, file_name, dev_name);
417 fp = popen(debugfs_cmd, "r");
419 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
423 if (fscanf(fp, "Inode: %u", &inode_num) == 1) { /* exist */
427 i = fread(debugfs_cmd, 1, sizeof(debugfs_cmd), fp);
430 fprintf(stderr, "%s", debugfs_cmd);
431 if (strstr(debugfs_cmd, "unsupported feature")) {
432 disp_old_e2fsprogs_msg("an unknown", 0);
441 /* Check whether the device has already been used with lustre */
442 static int is_lustre_target(struct mkfs_opts *mop)
445 vprint("checking for existing Lustre data: ");
447 if ((rc = file_in_dev(MOUNT_DATA_FILE, mop->mo_device))) {
449 (rc == 1) ? MOUNT_DATA_FILE : "extents");
450 /* in the -1 case, 'extents' means this really IS a lustre
455 if ((rc = file_in_dev(LAST_RCVD, mop->mo_device))) {
456 vprint("found %s\n", LAST_RCVD);
460 vprint("not found\n");
461 return 0; /* The device is not a lustre target. */
464 /* Check if a certain feature is supported by e2fsprogs.
465 * Firstly we try to use "debugfs supported_features" command to check if
466 * the feature is supported. If this fails we try to set this feature with
467 * mke2fs to check for its support. */
468 static int is_e2fsprogs_feature_supp(const char *feature)
472 char imgname[] = "/tmp/test-img-XXXXXX";
476 snprintf(cmd, sizeof(cmd), "%s -c -R \"supported_features %s\" 2>&1",
479 /* Using popen() instead of run_command() since debugfs does not return
480 * proper error code if command is not supported */
481 fp = popen(cmd, "r");
483 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
486 ret = fread(cmd, 1, sizeof(cmd), fp);
488 if (strstr(cmd, feature) && !(strstr(cmd, "Unknown")))
492 if ((fd = mkstemp(imgname)) < 0)
495 snprintf(cmd, sizeof(cmd), "%s -F -O %s %s 100 >/dev/null 2>&1",
496 MKE2FS, feature, imgname);
497 /* run_command() displays the output of mke2fs when it fails for
498 * some feature, so use system() directly */
506 static void disp_old_kernel_msg(char *feature)
508 fprintf(stderr, "WARNING: ldiskfs filesystem does not support \"%s\" "
509 "feature.\n\n", feature);
512 static void enable_default_backfs_features(struct mkfs_opts *mop)
515 int maj_high, maj_low, min;
518 strscat(mop->mo_mkfsopts, " -O dir_index,extents", sizeof(mop->mo_mkfsopts));
520 /* Upstream e2fsprogs called our uninit_groups feature uninit_bg,
521 * check for both of them when testing e2fsprogs features. */
522 if (is_e2fsprogs_feature_supp("uninit_groups") == 0)
523 strscat(mop->mo_mkfsopts, ",uninit_groups",
524 sizeof(mop->mo_mkfsopts));
525 else if (is_e2fsprogs_feature_supp("uninit_bg") == 0)
526 strscat(mop->mo_mkfsopts, ",uninit_bg",
527 sizeof(mop->mo_mkfsopts));
529 disp_old_e2fsprogs_msg("uninit_bg", 1);
535 sscanf(uts.release, "%d.%d.%d", &maj_high, &maj_low, &min);
536 printf("%d %d %d\n", maj_high, maj_low, min);
538 /* Multiple mount protection is enabled only if failover node is
539 * specified and if kernel version is higher than 2.6.9 */
541 if (KERNEL_VERSION(maj_high, maj_low, min) >=
542 KERNEL_VERSION(2,6,9)) {
543 if (is_e2fsprogs_feature_supp("mmp") == 0)
544 strscat(mop->mo_mkfsopts, ",mmp",
545 sizeof(mop->mo_mkfsopts));
547 disp_old_e2fsprogs_msg("mmp", 1);
549 disp_old_kernel_msg("mmp");
553 /* Build fs according to type */
554 int make_lustre_backfs(struct mkfs_opts *mop)
556 char mkfs_cmd[PATH_MAX];
562 if (mop->mo_device_sz != 0) {
563 if (mop->mo_device_sz < 8096){
564 fprintf(stderr, "%s: size of filesystem must be larger "
565 "than 8MB, but is set to %lluKB\n",
566 progname, (long long)mop->mo_device_sz);
569 block_count = mop->mo_device_sz / (L_BLOCK_SIZE >> 10);
572 if ((mop->mo_ldd.ldd_mount_type == LDD_MT_EXT3) ||
573 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS) ||
574 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS2)) {
575 __u64 device_sz = mop->mo_device_sz;
577 /* we really need the size */
578 if (device_sz == 0) {
579 device_sz = get_device_size(mop->mo_device);
584 /* Journal size in MB */
585 if (strstr(mop->mo_mkfsopts, "-J") == NULL) {
586 /* Choose our own default journal size */
587 long journal_sz = 0, max_sz;
588 if (device_sz > 1024 * 1024) /* 1GB */
589 journal_sz = (device_sz / 102400) * 4;
591 max_sz = (102400 * L_BLOCK_SIZE) >> 20; /* 400MB */
592 if (journal_sz > max_sz)
595 sprintf(buf, " -J size=%ld", journal_sz);
596 strscat(mop->mo_mkfsopts, buf,
597 sizeof(mop->mo_mkfsopts));
601 /* bytes_per_inode: disk size / num inodes */
602 if (strstr(mop->mo_mkfsopts, "-i") == NULL) {
603 long bytes_per_inode = 0;
605 if (IS_MDT(&mop->mo_ldd))
606 bytes_per_inode = 4096;
608 /* Allocate fewer inodes on large OST devices. Most
609 filesystems can be much more aggressive than even
611 if ((IS_OST(&mop->mo_ldd) && (device_sz > 1000000)))
612 bytes_per_inode = 16384;
614 if (bytes_per_inode > 0) {
615 sprintf(buf, " -i %ld", bytes_per_inode);
616 strscat(mop->mo_mkfsopts, buf,
617 sizeof(mop->mo_mkfsopts));
621 /* Inode size (for extended attributes). The LOV EA size is
622 * 32 (EA hdr) + 32 (lov_mds_md) + stripes * 24 (lov_ost_data),
623 * and we want some margin above that for ACLs, other EAs... */
624 if (strstr(mop->mo_mkfsopts, "-I") == NULL) {
626 if (IS_MDT(&mop->mo_ldd)) {
627 if (mop->mo_stripe_count > 72)
628 inode_size = 512; /* bz 7241 */
629 /* cray stripes across all osts (>60) */
630 else if (mop->mo_stripe_count > 32)
632 else if (mop->mo_stripe_count > 10)
636 } else if (IS_OST(&mop->mo_ldd)) {
637 /* now as we store fids in EA on OST we need
638 to make inode bigger */
642 if (inode_size > 0) {
643 sprintf(buf, " -I %ld", inode_size);
644 strscat(mop->mo_mkfsopts, buf,
645 sizeof(mop->mo_mkfsopts));
650 strscat(mop->mo_mkfsopts, " -q",
651 sizeof(mop->mo_mkfsopts));
654 if (strstr(mop->mo_mkfsopts, "-O") == NULL)
655 enable_default_backfs_features(mop);
657 /* Allow reformat of full devices (as opposed to
658 partitions.) We already checked for mounted dev. */
659 strscat(mop->mo_mkfsopts, " -F", sizeof(mop->mo_mkfsopts));
661 snprintf(mkfs_cmd, sizeof(mkfs_cmd),
662 "%s -j -b %d -L %s ", MKE2FS, L_BLOCK_SIZE,
663 mop->mo_ldd.ldd_svname);
665 } else if (mop->mo_ldd.ldd_mount_type == LDD_MT_REISERFS) {
666 long journal_sz = 0; /* FIXME default journal size */
667 if (journal_sz > 0) {
668 sprintf(buf, " --journal_size %ld", journal_sz);
669 strscat(mop->mo_mkfsopts, buf,
670 sizeof(mop->mo_mkfsopts));
672 snprintf(mkfs_cmd, sizeof(mkfs_cmd), "mkreiserfs -ff ");
675 fprintf(stderr,"%s: unsupported fs type: %d (%s)\n",
676 progname, mop->mo_ldd.ldd_mount_type,
677 MT_STR(&mop->mo_ldd));
681 /* For loop device format the dev, not the filename */
682 dev = mop->mo_device;
683 if (mop->mo_flags & MO_IS_LOOP)
684 dev = mop->mo_loopdev;
686 vprint("formatting backing filesystem %s on %s\n",
687 MT_STR(&mop->mo_ldd), dev);
688 vprint("\ttarget name %s\n", mop->mo_ldd.ldd_svname);
689 vprint("\t4k blocks %d\n", block_count);
690 vprint("\toptions %s\n", mop->mo_mkfsopts);
692 /* mkfs_cmd's trailing space is important! */
693 strscat(mkfs_cmd, mop->mo_mkfsopts, sizeof(mkfs_cmd));
694 strscat(mkfs_cmd, " ", sizeof(mkfs_cmd));
695 strscat(mkfs_cmd, dev, sizeof(mkfs_cmd));
696 if (block_count != 0) {
697 sprintf(buf, " %d", block_count);
698 strscat(mkfs_cmd, buf, sizeof(mkfs_cmd));
701 vprint("mkfs_cmd = %s\n", mkfs_cmd);
702 ret = run_command(mkfs_cmd, sizeof(mkfs_cmd));
705 fprintf(stderr, "Unable to build fs %s (%d)\n", dev, ret);
710 /* ==================== Lustre config functions =============*/
712 void print_ldd(char *str, struct lustre_disk_data *ldd)
714 printf("\n %s:\n", str);
715 printf("Target: %s\n", ldd->ldd_svname);
716 if (ldd->ldd_svindex == INDEX_UNASSIGNED)
717 printf("Index: unassigned\n");
719 printf("Index: %d\n", ldd->ldd_svindex);
720 if (ldd->ldd_uuid[0])
721 printf("UUID: %s\n", (char *)ldd->ldd_uuid);
722 printf("Lustre FS: %s\n", ldd->ldd_fsname);
723 printf("Mount type: %s\n", MT_STR(ldd));
724 printf("Flags: %#x\n", ldd->ldd_flags);
725 printf(" (%s%s%s%s%s%s%s%s)\n",
726 IS_MDT(ldd) ? "MDT ":"",
727 IS_OST(ldd) ? "OST ":"",
728 IS_MGS(ldd) ? "MGS ":"",
729 ldd->ldd_flags & LDD_F_NEED_INDEX ? "needs_index ":"",
730 ldd->ldd_flags & LDD_F_VIRGIN ? "first_time ":"",
731 ldd->ldd_flags & LDD_F_UPDATE ? "update ":"",
732 ldd->ldd_flags & LDD_F_WRITECONF ? "writeconf ":"",
733 ldd->ldd_flags & LDD_F_UPGRADE14 ? "upgrade1.4 ":"");
734 printf("Persistent mount opts: %s\n", ldd->ldd_mount_opts);
735 printf("Parameters:%s\n", ldd->ldd_params);
736 if (ldd->ldd_userdata[0])
737 printf("Comment: %s\n", ldd->ldd_userdata);
741 /* Write the server config files */
742 int write_local_files(struct mkfs_opts *mop)
744 char mntpt[] = "/tmp/mntXXXXXX";
751 /* Mount this device temporarily in order to write these files */
752 if (!mkdtemp(mntpt)) {
753 fprintf(stderr, "%s: Can't create temp mount point %s: %s\n",
754 progname, mntpt, strerror(errno));
758 dev = mop->mo_device;
759 if (mop->mo_flags & MO_IS_LOOP)
760 dev = mop->mo_loopdev;
762 ret = mount(dev, mntpt, MT_STR(&mop->mo_ldd), 0, NULL);
764 fprintf(stderr, "%s: Unable to mount %s: %s\n",
765 progname, dev, strerror(errno));
767 if (errno == ENODEV) {
768 fprintf(stderr, "Is the %s module available?\n",
769 MT_STR(&mop->mo_ldd));
774 /* Set up initial directories */
775 sprintf(filepnm, "%s/%s", mntpt, MOUNT_CONFIGS_DIR);
776 ret = mkdir(filepnm, 0777);
777 if ((ret != 0) && (errno != EEXIST)) {
778 fprintf(stderr, "%s: Can't make configs dir %s: %s\n",
779 progname, filepnm, strerror(errno));
781 } else if (errno == EEXIST) {
785 /* Save the persistent mount data into a file. Lustre must pre-read
786 this file to get the real mount options. */
787 vprint("Writing %s\n", MOUNT_DATA_FILE);
788 sprintf(filepnm, "%s/%s", mntpt, MOUNT_DATA_FILE);
789 filep = fopen(filepnm, "w");
791 fprintf(stderr, "%s: Unable to create %s file: %s\n",
792 progname, filepnm, strerror(errno));
795 num = fwrite(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
796 if (num < 1 && ferror(filep)) {
797 fprintf(stderr, "%s: Unable to write to file (%s): %s\n",
798 progname, filepnm, strerror(errno));
805 /* Check for upgrade */
806 if ((mop->mo_ldd.ldd_flags & (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS))
807 == (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS)) {
810 int cmdsz = sizeof(cmd);
811 vprint("Copying old logs\n");
813 /* Copy the old client log to fsname-client */
814 sprintf(filepnm, "%s/%s/%s-client",
815 mntpt, MOUNT_CONFIGS_DIR, mop->mo_ldd.ldd_fsname);
816 snprintf(cmd, cmdsz, "cp %s/%s/client %s", mntpt, MDT_LOGS_DIR,
818 ret = run_command(cmd, cmdsz);
820 fprintf(stderr, "%s: Can't copy 1.4 config %s/client "
821 "(%d)\n", progname, MDT_LOGS_DIR, ret);
822 fprintf(stderr, "mount -t ldiskfs %s somewhere, "
823 "find the client log for fs %s and "
824 "copy it manually into %s/%s-client, "
827 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
828 mop->mo_ldd.ldd_fsname);
832 /* We need to use the old mdt log because otherwise mdt won't
833 have complete lov if old clients connect before all
835 /* Copy the old mdt log to fsname-MDT0000 (get old
836 name from mdt_UUID) */
838 strscpy(filepnm, (char *)mop->mo_ldd.ldd_uuid, sizeof(filepnm));
839 term = strstr(filepnm, "_UUID");
842 snprintf(cmd, cmdsz, "cp %s/%s/%s %s/%s/%s",
843 mntpt, MDT_LOGS_DIR, filepnm,
844 mntpt, MOUNT_CONFIGS_DIR,
845 mop->mo_ldd.ldd_svname);
846 ret = run_command(cmd, cmdsz);
849 fprintf(stderr, "%s: Can't copy 1.4 config %s/%s "
850 "(%d)\n", progname, MDT_LOGS_DIR, filepnm, ret);
851 fprintf(stderr, "mount -t ext3 %s somewhere, "
852 "find the MDT log for fs %s and "
853 "copy it manually into %s/%s, "
856 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
857 mop->mo_ldd.ldd_svname);
872 int read_local_files(struct mkfs_opts *mop)
874 char tmpdir[] = "/tmp/dirXXXXXX";
880 int cmdsz = sizeof(cmd);
882 /* Make a temporary directory to hold Lustre data files. */
883 if (!mkdtemp(tmpdir)) {
884 fprintf(stderr, "%s: Can't create temporary directory %s: %s\n",
885 progname, tmpdir, strerror(errno));
889 dev = mop->mo_device;
891 /* TODO: it's worth observing the get_mountdata() function that is
892 in mount_utils.c for getting the mountdata out of the
895 /* Construct debugfs command line. */
896 snprintf(cmd, cmdsz, "%s -c -R 'dump /%s %s/mountdata' '%s'",
897 DEBUGFS, MOUNT_DATA_FILE, tmpdir, dev);
899 ret = run_command(cmd, cmdsz);
901 verrprint("%s: Unable to dump %s dir (%d)\n",
902 progname, MOUNT_CONFIGS_DIR, ret);
904 sprintf(filepnm, "%s/mountdata", tmpdir);
905 filep = fopen(filepnm, "r");
908 vprint("Reading %s\n", MOUNT_DATA_FILE);
909 num_read = fread(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
910 if (num_read < 1 && ferror(filep)) {
911 fprintf(stderr, "%s: Unable to read from file (%s): %s\n",
912 progname, filepnm, strerror(errno));
917 /* Try to read pre-1.6 config from last_rcvd */
918 struct lr_server_data lsd;
919 verrprint("%s: Unable to read %d.%d config %s.\n",
920 progname, LUSTRE_MAJOR, LUSTRE_MINOR, filepnm);
922 verrprint("Trying 1.4 config from last_rcvd\n");
923 sprintf(filepnm, "%s/%s", tmpdir, LAST_RCVD);
925 /* Construct debugfs command line. */
926 snprintf(cmd, cmdsz, "%s -c -R 'dump /%s %s' %s",
927 DEBUGFS, LAST_RCVD, filepnm, dev);
929 ret = run_command(cmd, cmdsz);
931 fprintf(stderr, "%s: Unable to dump %s file (%d)\n",
932 progname, LAST_RCVD, ret);
936 filep = fopen(filepnm, "r");
938 fprintf(stderr, "%s: Unable to open %s: %s\n",
939 progname, filepnm, strerror(errno));
941 verrprint("Contents of %s:\n", tmpdir);
943 snprintf(cmd, cmdsz, "ls -l %s/", tmpdir);
944 run_command(cmd, cmdsz);
945 verrprint("Contents of disk:\n");
946 snprintf(cmd, cmdsz, "%s -c -R 'ls -l /' %s",
948 run_command(cmd, cmdsz);
952 vprint("Reading %s\n", LAST_RCVD);
953 ret = fread(&lsd, 1, sizeof(lsd), filep);
954 if (ret < sizeof(lsd)) {
955 fprintf(stderr, "%s: Short read (%d of %d)\n",
956 progname, ret, (int)sizeof(lsd));
961 vprint("Feature compat=%x, incompat=%x\n",
962 lsd.lsd_feature_compat, lsd.lsd_feature_incompat);
964 if ((lsd.lsd_feature_compat & OBD_COMPAT_OST) ||
965 (lsd.lsd_feature_incompat & OBD_INCOMPAT_OST)) {
966 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
967 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
968 } else if ((lsd.lsd_feature_compat & OBD_COMPAT_MDT) ||
969 (lsd.lsd_feature_incompat & OBD_INCOMPAT_MDT)) {
970 /* We must co-locate so mgs can see old logs.
971 If user doesn't want this, they can copy the old
972 logs manually and re-tunefs. */
973 mop->mo_ldd.ldd_flags =
974 LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_MGS;
975 mop->mo_ldd.ldd_svindex = lsd.lsd_mdt_index;
977 /* If neither is set, we're pre-1.4.6, make a guess. */
978 /* Construct debugfs command line. */
979 snprintf(cmd, cmdsz, "%s -c -R 'rdump /%s %s' %s",
980 DEBUGFS, MDT_LOGS_DIR, tmpdir, dev);
981 run_command(cmd, cmdsz);
983 sprintf(filepnm, "%s/%s", tmpdir, MDT_LOGS_DIR);
984 if (lsd.lsd_ost_index > 0) {
985 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
986 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
988 /* If there's a LOGS dir, it's an MDT */
989 if ((ret = access(filepnm, F_OK)) == 0) {
990 mop->mo_ldd.ldd_flags =
993 /* Old MDT's are always index 0
995 mop->mo_ldd.ldd_svindex = 0;
997 /* The index may not be correct */
998 mop->mo_ldd.ldd_flags =
999 LDD_F_SV_TYPE_OST | LDD_F_NEED_INDEX;
1000 verrprint("OST with unknown index\n");
1006 memcpy(mop->mo_ldd.ldd_uuid, lsd.lsd_uuid,
1007 sizeof(mop->mo_ldd.ldd_uuid));
1008 mop->mo_ldd.ldd_flags |= LDD_F_UPGRADE14;
1010 /* end COMPAT_146 */
1015 snprintf(cmd, cmdsz, "rm -rf %s", tmpdir);
1016 run_command(cmd, cmdsz);
1018 verrprint("Failed to read old data (%d)\n", ret);
1023 void set_defaults(struct mkfs_opts *mop)
1025 mop->mo_ldd.ldd_magic = LDD_MAGIC;
1026 mop->mo_ldd.ldd_config_ver = 1;
1027 mop->mo_ldd.ldd_flags = LDD_F_NEED_INDEX | LDD_F_UPDATE | LDD_F_VIRGIN;
1028 mop->mo_mgs_failnodes = 0;
1029 strcpy(mop->mo_ldd.ldd_fsname, "lustre");
1030 if (get_os_version() == 24)
1031 mop->mo_ldd.ldd_mount_type = LDD_MT_EXT3;
1033 mop->mo_ldd.ldd_mount_type = LDD_MT_LDISKFS;
1035 mop->mo_ldd.ldd_svindex = INDEX_UNASSIGNED;
1036 mop->mo_stripe_count = 1;
1039 static inline void badopt(const char *opt, char *type)
1041 fprintf(stderr, "%s: '--%s' only valid for %s\n",
1042 progname, opt, type);
1046 static int clean_param(char *buf, char *key)
1052 if ((sub = strstr(buf, key)) != NULL) {
1053 if ((next = strchr(sub, ' ')) != NULL) {
1055 memmove(sub, next, strlen(next) + 1);
1063 static int add_param(char *buf, char *key, char *val, int unique)
1065 int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
1071 keylen = strlen(key);
1074 clean_param(buf, key);
1076 if ((ptr = strchr(val, '=')) == NULL)
1079 clean_param(buf, val);
1084 start = strlen(buf);
1085 if (start + 1 + keylen + strlen(val) >= end) {
1086 fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
1087 progname, buf, key ? key : "", val);
1091 sprintf(buf + start, " %s%s", key ? key : "", val);
1095 /* from mount_lustre */
1096 /* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
1097 #define MAXNIDSTR 1024
1098 static char *convert_hostnames(char *s1)
1100 char *converted, *s2 = 0, *c, *end, sep;
1101 int left = MAXNIDSTR;
1104 converted = malloc(left);
1105 if (converted == NULL) {
1106 fprintf(stderr, "out of memory: needed %d bytes\n",
1110 end = s1 + strlen(s1);
1112 while ((left > 0) && (s1 < end)) {
1113 s2 = strpbrk(s1, ",:");
1118 nid = libcfs_str2nid(s1);
1120 if (nid == LNET_NID_ANY) {
1121 fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
1125 if (strncmp(libcfs_nid2str(nid), "127.0.0.1",
1126 strlen("127.0.0.1")) == 0) {
1127 fprintf(stderr, "%s: The NID '%s' resolves to the "
1128 "loopback address '%s'. Lustre requires a "
1129 "non-loopback address.\n",
1130 progname, s1, libcfs_nid2str(nid));
1135 c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
1136 left = converted + MAXNIDSTR - c;
1142 int parse_opts(int argc, char *const argv[], struct mkfs_opts *mop,
1145 static struct option long_opt[] = {
1146 {"backfstype", 1, 0, 'b'},
1147 {"stripe-count-hint", 1, 0, 'c'},
1148 {"comment", 1, 0, 'u'},
1149 {"configdev", 1, 0, 'C'},
1150 {"device-size", 1, 0, 'd'},
1151 {"dryrun", 0, 0, 'n'},
1152 {"erase-params", 0, 0, 'e'},
1153 {"failnode", 1, 0, 'f'},
1154 {"failover", 1, 0, 'f'},
1156 {"help", 0, 0, 'h'},
1157 {"index", 1, 0, 'i'},
1158 {"mkfsoptions", 1, 0, 'k'},
1159 {"mgsnode", 1, 0, 'm'},
1160 {"mgsnid", 1, 0, 'm'},
1162 {"fsname",1, 0, 'L'},
1163 {"noformat", 0, 0, 'n'},
1164 {"nomgs", 0, 0, 'N'},
1165 {"mountfsoptions", 1, 0, 'o'},
1167 {"param", 1, 0, 'p'},
1168 {"print", 0, 0, 'n'},
1169 {"quiet", 0, 0, 'q'},
1170 {"reformat", 0, 0, 'r'},
1171 {"verbose", 0, 0, 'v'},
1172 {"writeconf", 0, 0, 'w'},
1175 char *optstring = "b:c:C:d:ef:Ghi:k:L:m:MnNo:Op:Pqru:vw";
1179 const size_t prefix_len = sizeof(PARAM_MDT_UPCALL) - 1;
1181 while ((opt = getopt_long(argc, argv, optstring, long_opt, &longidx)) !=
1186 while (i < LDD_MT_LAST) {
1187 if (strcmp(optarg, mt_str(i)) == 0) {
1188 mop->mo_ldd.ldd_mount_type = i;
1196 if (IS_MDT(&mop->mo_ldd)) {
1197 int stripe_count = atol(optarg);
1198 if (stripe_count <= 0) {
1199 fprintf(stderr, "%s: bad stripe count "
1200 "%d\n", progname, stripe_count);
1203 mop->mo_stripe_count = stripe_count;
1205 badopt(long_opt[longidx].name, "MDT");
1209 case 'C': /* Configdev */
1211 printf("Configdev not implemented\n");
1214 mop->mo_device_sz = atol(optarg);
1217 mop->mo_ldd.ldd_params[0] = '\0';
1218 /* Must update the mgs logs */
1219 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1222 char *nids = convert_hostnames(optarg);
1225 rc = add_param(mop->mo_ldd.ldd_params, PARAM_FAILNODE,
1230 /* Must update the mgs logs */
1231 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1236 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MGS;
1242 if (!(mop->mo_ldd.ldd_flags &
1243 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1244 LDD_F_WRITECONF))) {
1245 fprintf(stderr, "%s: cannot change the index of"
1246 " a registered target\n", progname);
1249 if (IS_MDT(&mop->mo_ldd) || IS_OST(&mop->mo_ldd)) {
1250 mop->mo_ldd.ldd_svindex = atol(optarg);
1251 mop->mo_ldd.ldd_flags &= ~LDD_F_NEED_INDEX;
1253 badopt(long_opt[longidx].name, "MDT,OST");
1258 strscpy(mop->mo_mkfsopts, optarg,
1259 sizeof(mop->mo_mkfsopts));
1263 if (!(mop->mo_flags & MO_FORCEFORMAT) &&
1264 (!(mop->mo_ldd.ldd_flags &
1265 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1266 LDD_F_WRITECONF)))) {
1267 fprintf(stderr, "%s: cannot change the name of"
1268 " a registered target\n", progname);
1271 if ((strlen(optarg) < 1) || (strlen(optarg) > 8)) {
1272 fprintf(stderr, "%s: filesystem name must be "
1273 "1-8 chars\n", progname);
1276 if ((tmp = strpbrk(optarg, "/:"))) {
1277 fprintf(stderr, "%s: char '%c' not allowed in "
1278 "filesystem name\n", progname, *tmp);
1281 strscpy(mop->mo_ldd.ldd_fsname, optarg,
1282 sizeof(mop->mo_ldd.ldd_fsname));
1286 char *nids = convert_hostnames(optarg);
1289 rc = add_param(mop->mo_ldd.ldd_params, PARAM_MGSNODE,
1294 mop->mo_mgs_failnodes++;
1298 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MDT;
1304 mop->mo_ldd.ldd_flags &= ~LDD_F_SV_TYPE_MGS;
1307 *mountopts = optarg;
1310 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_OST;
1313 /* Test if the param is valid for mdt.group_upcall */
1314 if (!strncmp(optarg, PARAM_MDT_UPCALL, prefix_len)) {
1316 if (strcmp(optarg + prefix_len, "NONE") &&
1317 access(optarg + prefix_len, R_OK | X_OK))
1318 fprintf(stderr, "WARNING: group upcall "
1319 "parameter not executable: %s\n"
1320 "NOTE: you can change the path "
1321 "to the group upcall through "
1322 "tunefs.lustre(8)\n", optarg +
1325 rc = add_param(mop->mo_ldd.ldd_params, NULL, optarg, 0);
1328 /* Must update the mgs logs */
1329 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1335 mop->mo_flags |= MO_FORCEFORMAT;
1338 strscpy(mop->mo_ldd.ldd_userdata, optarg,
1339 sizeof(mop->mo_ldd.ldd_userdata));
1345 mop->mo_ldd.ldd_flags |= LDD_F_WRITECONF;
1350 fprintf(stderr, "Unknown option '%c'\n", opt);
1356 /* Last arg is device */
1357 if (optind != argc - 1) {
1359 fprintf(stderr, "Bad argument: %s\n", argv[optind]);
1363 /* single argument: <device> */
1368 if (mop->mo_ldd.ldd_flags & LDD_F_SV_TYPE_MDT && 0 == upcall) {
1369 if (access("/usr/sbin/l_getgroups", R_OK | X_OK)) {
1370 fprintf(stderr, "WARNING: MDS group upcall is not set, "
1373 rc = add_param(mop->mo_ldd.ldd_params, PARAM_MDT_UPCALL,
1374 "/usr/sbin/l_getgroups", 1);
1377 /* Must update the mgs logs */
1378 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1386 /* Search for opt in mntlist, returning true if found.
1388 static int in_mntlist(char *opt, char *mntlist)
1390 char *ml, *mlp, *item, *ctx = NULL;
1392 if (!(ml = strdup(mntlist))) {
1393 fprintf(stderr, "%s: out of memory\n", progname);
1397 while ((item = strtok_r(mlp, ",", &ctx))) {
1398 if (!strcmp(opt, item))
1403 return (item != NULL);
1406 /* Issue a message on stderr for every item in wanted_mountopts that is not
1407 * present in mountopts. The justwarn boolean toggles between error and
1408 * warning message. Return an error count.
1410 static int check_mountfsoptions(char *mountopts, char *wanted_mountopts,
1413 char *ml, *mlp, *item, *ctx = NULL;
1416 if (!(ml = strdup(wanted_mountopts))) {
1417 fprintf(stderr, "%s: out of memory\n", progname);
1421 while ((item = strtok_r(mlp, ",", &ctx))) {
1422 if (!in_mntlist(item, mountopts)) {
1423 fprintf(stderr, "%s: %s mount option `%s' is missing\n",
1424 progname, justwarn ? "Warning: default"
1425 : "Error: mandatory", item);
1434 /* Trim embedded white space, leading and trailing commas from string s.
1436 static void trim_mountfsoptions(char *s)
1442 memmove(p, p + 1, strlen(p + 1) + 1);
1449 memmove(&s[0], &s[1], strlen(&s[1]) + 1);
1451 p = s + strlen(s) - 1;
1452 while (p >= s && *p == ',')
1456 int main(int argc, char *const argv[])
1458 struct mkfs_opts mop;
1459 struct lustre_disk_data *ldd;
1460 char *mountopts = NULL;
1461 char always_mountopts[512] = "";
1462 char default_mountopts[512] = "";
1465 if ((progname = strrchr(argv[0], '/')) != NULL)
1470 if ((argc < 2) || (argv[argc - 1][0] == '-')) {
1475 memset(&mop, 0, sizeof(mop));
1478 /* device is last arg */
1479 strscpy(mop.mo_device, argv[argc - 1], sizeof(mop.mo_device));
1481 /* Are we using a loop device? */
1482 ret = is_block(mop.mo_device);
1486 mop.mo_flags |= MO_IS_LOOP;
1489 /* For tunefs, we must read in the old values before parsing any
1492 /* Check whether the disk has already been formatted by mkfs.lustre */
1493 ret = is_lustre_target(&mop);
1496 fprintf(stderr, "Device %s has not been formatted with "
1497 "mkfs.lustre\n", mop.mo_device);
1502 ret = read_local_files(&mop);
1505 fprintf(stderr, "Failed to read previous Lustre data from %s "
1506 "(%d)\n", mop.mo_device, ret);
1509 if (strstr(mop.mo_ldd.ldd_params, PARAM_MGSNODE))
1510 mop.mo_mgs_failnodes++;
1513 print_ldd("Read previous values", &(mop.mo_ldd));
1516 ret = parse_opts(argc, argv, &mop, &mountopts);
1522 if (!(IS_MDT(ldd) || IS_OST(ldd) || IS_MGS(ldd))) {
1524 fprintf(stderr, "must set target type: MDT,OST,MGS\n");
1529 if (((IS_MDT(ldd) || IS_MGS(ldd))) && IS_OST(ldd)) {
1531 fprintf(stderr, "OST type is exclusive with MDT,MGS\n");
1536 if ((mop.mo_ldd.ldd_flags & (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) ==
1537 (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) {
1539 fprintf(stderr, "Can't find the target index, "
1540 "specify with --index\n");
1545 if (!IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1548 fprintf(stderr, "Must specify --mgs or --mgsnode=\n");
1550 fprintf(stderr, "Must specify --mgsnode=\n");
1555 /* These are the permanent mount options (always included) */
1556 switch (ldd->ldd_mount_type) {
1558 case LDD_MT_LDISKFS:
1559 case LDD_MT_LDISKFS2: {
1560 strscat(default_mountopts, ",errors=remount-ro",
1561 sizeof(default_mountopts));
1562 if (IS_MDT(ldd) || IS_MGS(ldd))
1563 strscat(always_mountopts, ",iopen_nopriv,user_xattr",
1564 sizeof(always_mountopts));
1565 if ((get_os_version() == 24) && IS_OST(ldd))
1566 strscat(always_mountopts, ",asyncdel",
1567 sizeof(always_mountopts));
1568 /* NB: Files created while extents are enabled cannot be read
1569 if mounted with a kernel that doesn't include the Lustre ldiskfs
1572 (ldd->ldd_mount_type == LDD_MT_LDISKFS ||
1573 ldd->ldd_mount_type == LDD_MT_LDISKFS2)) {
1574 strscat(default_mountopts, ",extents,mballoc",
1575 sizeof(default_mountopts));
1580 mop.mo_flags |= MO_IS_LOOP;
1581 sprintf(always_mountopts, ",type=ext3,dev=%s",
1587 fprintf(stderr, "unknown fs type %d '%s'\n",
1588 ldd->ldd_mount_type,
1596 trim_mountfsoptions(mountopts);
1597 (void)check_mountfsoptions(mountopts, default_mountopts, 1);
1598 if (check_mountfsoptions(mountopts, always_mountopts, 0)) {
1602 sprintf(ldd->ldd_mount_opts, "%s", mountopts);
1605 if (ldd->ldd_mount_opts[0] == 0)
1606 /* use the defaults unless old opts exist */
1609 sprintf(ldd->ldd_mount_opts, "%s%s",
1610 always_mountopts, default_mountopts);
1611 trim_mountfsoptions(ldd->ldd_mount_opts);
1615 server_make_name(ldd->ldd_flags, ldd->ldd_svindex,
1616 ldd->ldd_fsname, ldd->ldd_svname);
1619 print_ldd("Permanent disk data", ldd);
1622 printf("exiting before disk write.\n");
1626 if (check_mtab_entry(mop.mo_device))
1629 /* Create the loopback file */
1630 if (mop.mo_flags & MO_IS_LOOP) {
1631 ret = access(mop.mo_device, F_OK);
1634 #ifndef TUNEFS /* mkfs.lustre */
1635 /* Reformat the loopback file */
1636 if (ret || (mop.mo_flags & MO_FORCEFORMAT))
1637 ret = loop_format(&mop);
1640 ret = loop_setup(&mop);
1643 fprintf(stderr, "Loop device setup for %s failed: %s\n",
1644 mop.mo_device, strerror(ret));
1649 #ifndef TUNEFS /* mkfs.lustre */
1650 /* Check whether the disk has already been formatted by mkfs.lustre */
1651 if (!(mop.mo_flags & MO_FORCEFORMAT)) {
1652 ret = is_lustre_target(&mop);
1655 fprintf(stderr, "Device %s was previously formatted "
1656 "for lustre. Use --reformat to reformat it, "
1657 "or tunefs.lustre to modify.\n",
1663 /* Format the backing filesystem */
1664 ret = make_lustre_backfs(&mop);
1667 fprintf(stderr, "mkfs failed %d\n", ret);
1672 /* Write our config files */
1673 ret = write_local_files(&mop);
1676 fprintf(stderr, "failed to write local files\n");
1683 /* Fix any crazy return values from system() */
1684 if (ret && ((ret & 255) == 0))
1687 verrprint("%s: exiting with %d (%s)\n",
1688 progname, ret, strerror(ret));