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 */
53 #include <sys/types.h>
55 #include <sys/mount.h>
56 #include <sys/utsname.h>
63 /* libcfs.h is not really needed here, but on SLES10/PPC, fs.h includes idr.h which
64 * requires BITS_PER_LONG to be defined */
65 #include <libcfs/libcfs.h>
66 #include <linux/fs.h> /* for BLKGETSIZE64 */
67 #include <linux/version.h>
69 #include <lustre_disk.h>
70 #include <lustre_param.h>
71 #include <lnet/lnetctl.h>
72 #include <lustre_ver.h>
73 #include "mount_utils.h"
79 #define MAX_LOOP_DEVICES 16
80 #define L_BLOCK_SIZE 4096
81 #define INDEX_UNASSIGNED 0xFFFF
82 #define MO_IS_LOOP 0x01
83 #define MO_FORCEFORMAT 0x02
85 /* used to describe the options to format the lustre disk, not persistent */
87 struct lustre_disk_data mo_ldd; /* to be written in MOUNT_DATA_FILE */
88 char mo_device[128]; /* disk device name */
89 char mo_mkfsopts[128]; /* options to the backing-store mkfs */
90 char mo_loopdev[128]; /* in case a loop dev is needed */
91 __u64 mo_device_sz; /* in KB */
99 static int print_only = 0;
100 static int failover = 0;
102 void usage(FILE *out)
104 fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
105 fprintf(out, "usage: %s <target types> [options] <device>\n", progname);
107 "\t<device>:block device or file (e.g /dev/sda or /tmp/ost1)\n"
109 "\t\t--ost: object storage, mutually exclusive with mdt,mgs\n"
110 "\t\t--mdt: metadata storage, mutually exclusive with ost\n"
111 "\t\t--mgs: configuration management service - one per site\n"
112 "\toptions (in order of popularity):\n"
113 "\t\t--mgsnode=<nid>[,<...>] : NID(s) of a remote mgs node\n"
114 "\t\t\trequired for all targets other than the mgs node\n"
115 "\t\t--fsname=<filesystem_name> : default is 'lustre'\n"
116 "\t\t--failnode=<nid>[,<...>] : NID(s) of a failover partner\n"
117 "\t\t--param <key>=<value> : set a permanent parameter\n"
118 "\t\t\te.g. --param sys.timeout=40\n"
119 "\t\t\t --param lov.stripesize=2M\n"
120 "\t\t--index=#N : target index (i.e. ost index within the lov)\n"
121 /* FIXME implement 1.6.x
122 "\t\t--configdev=<altdevice|file>: store configuration info\n"
123 "\t\t\tfor this device on an alternate device\n"
125 "\t\t--comment=<user comment>: arbitrary user string (%d bytes)\n"
126 "\t\t--mountfsoptions=<opts> : permanent mount options\n"
128 "\t\t--backfstype=<fstype> : backing fs type (ext3, ldiskfs)\n"
129 "\t\t--device-size=#N(KB) : device size for loop devices\n"
130 "\t\t--mkfsoptions=<opts> : format options\n"
131 "\t\t--reformat: overwrite an existing disk\n"
132 "\t\t--stripe-count-hint=#N : used for optimizing MDT inode size\n"
134 "\t\t--erase-params : erase all old parameter settings\n"
135 "\t\t--nomgs: turn off MGS service on this MDT\n"
136 "\t\t--writeconf: erase all config logs for this fs.\n"
138 "\t\t--dryrun: just report what we would do; "
139 "don't write to disk\n"
140 "\t\t--verbose : e.g. show mkfs progress\n"
142 (int)sizeof(((struct lustre_disk_data *)0)->ldd_userdata));
146 #define vprint if (verbose > 0) printf
147 #define verrprint if (verbose >= 0) printf
149 /*================ utility functions =====================*/
151 char *strscat(char *dst, char *src, int buflen) {
153 if (strlen(dst) + strlen(src) >= buflen) {
154 fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
155 "\n", buflen, dst, src);
158 return strcat(dst, src);
162 char *strscpy(char *dst, char *src, int buflen) {
164 return strscat(dst, src, buflen);
168 dev_major (unsigned long long int __dev)
170 return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
174 dev_minor (unsigned long long int __dev)
176 return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
181 static int version = 0;
185 char release[4] = "";
187 fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
189 fprintf(stderr, "%s: Warning: Can't resolve kernel "
190 "version, assuming 2.6\n", progname);
192 read(fd, release, 4);
195 if (strncmp(release, "2.4.", 4) == 0)
203 static int check_mtab_entry(char *spec)
208 fp = setmntent(MOUNTED, "r");
212 while ((mnt = getmntent(fp)) != NULL) {
213 if (strcmp(mnt->mnt_fsname, spec) == 0) {
215 fprintf(stderr, "%s: according to %s %s is "
216 "already mounted on %s\n",
217 progname, MOUNTED, spec, mnt->mnt_dir);
226 /*============ disk dev functions ===================*/
228 /* Setup a file in the first unused loop_device */
229 int loop_setup(struct mkfs_opts *mop)
235 /* Figure out the loop device names */
236 if (!access("/dev/loop0", F_OK | R_OK)) {
237 strcpy(loop_base, "/dev/loop\0");
238 } else if (!access("/dev/loop/0", F_OK | R_OK)) {
239 strcpy(loop_base, "/dev/loop/\0");
241 fprintf(stderr, "%s: can't access loop devices\n", progname);
245 /* Find unused loop device */
246 for (i = 0; i < MAX_LOOP_DEVICES; i++) {
248 int cmdsz = sizeof(cmd);
250 sprintf(l_device, "%s%d", loop_base, i);
251 if (access(l_device, F_OK | R_OK))
253 snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
256 /* losetup gets 1 (ret=256) for non-set-up device */
258 /* Set up a loopback device to our file */
259 snprintf(cmd, cmdsz, "losetup %s %s", l_device,
261 ret = run_command(cmd, cmdsz);
263 fprintf(stderr, "%s: error %d on losetup: %s\n",
264 progname, ret, strerror(ret));
267 strscpy(mop->mo_loopdev, l_device,
268 sizeof(mop->mo_loopdev));
273 fprintf(stderr, "%s: out of loop devices!\n", progname);
277 int loop_cleanup(struct mkfs_opts *mop)
281 if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
282 sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
283 ret = run_command(cmd, sizeof(cmd));
288 /* Determine if a device is a block device (as opposed to a file) */
289 int is_block(char* devname)
294 ret = access(devname, F_OK);
297 ret = stat(devname, &st);
299 fprintf(stderr, "%s: cannot stat %s\n", progname, devname);
302 return S_ISBLK(st.st_mode);
305 __u64 get_device_size(char* device)
310 fd = open(device, O_RDONLY);
312 fprintf(stderr, "%s: cannot open %s: %s\n",
313 progname, device, strerror(errno));
318 /* size in bytes. bz5831 */
319 ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
324 ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
325 size = (__u64)lsize * 512;
330 fprintf(stderr, "%s: size ioctl failed: %s\n",
331 progname, strerror(errno));
335 vprint("device size = "LPU64"MB\n", size >> 20);
336 /* return value in KB */
340 int loop_format(struct mkfs_opts *mop)
344 if (mop->mo_device_sz == 0) {
346 fprintf(stderr, "loop device requires a --device-size= "
351 ret = creat(mop->mo_device, S_IRUSR|S_IWUSR);
354 fprintf(stderr, "%s: Unable to create backing store: %d\n",
360 ret = truncate(mop->mo_device, mop->mo_device_sz * 1024);
363 fprintf(stderr, "%s: Unable to truncate backing store: %d\n",
370 /* Display the need for the latest e2fsprogs to be installed. make_backfs
371 * indicates if the caller is make_lustre_backfs() or not. */
372 static void disp_old_e2fsprogs_msg(const char *feature, int make_backfs)
374 static int msg_displayed;
377 fprintf(stderr, "WARNING: e2fsprogs does not support %s "
378 "feature.\n\n", feature);
384 fprintf(stderr, "WARNING: The e2fsprogs package currently installed on "
385 "your system does not support \"%s\" feature.\nPlease install "
386 "the latest version of e2fsprogs from http://downloads.lustre.org"
387 "/public/tools/e2fsprogs/\nto enable this feature.\n", feature);
390 fprintf(stderr, "Feature will not be enabled until e2fsprogs "
391 "is updated and 'tune2fs -O %s %%{device}' "
392 "is run.\n\n", feature);
395 /* Check whether the file exists in the device */
396 static int file_in_dev(char *file_name, char *dev_name)
399 char debugfs_cmd[256];
400 unsigned int inode_num;
403 /* Construct debugfs command line. */
404 snprintf(debugfs_cmd, sizeof(debugfs_cmd),
405 "debugfs -c -R 'stat %s' '%s' 2>&1 | egrep '(Inode|unsupported)'",
406 file_name, dev_name);
408 fp = popen(debugfs_cmd, "r");
410 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
414 if (fscanf(fp, "Inode: %u", &inode_num) == 1) { /* exist */
418 i = fread(debugfs_cmd, 1, sizeof(debugfs_cmd), fp);
421 fprintf(stderr, "%s", debugfs_cmd);
422 if (strstr(debugfs_cmd, "unsupported feature")) {
423 disp_old_e2fsprogs_msg("an unknown", 0);
432 /* Check whether the device has already been used with lustre */
433 static int is_lustre_target(struct mkfs_opts *mop)
437 vprint("checking for existing Lustre data: ");
439 if ((rc = file_in_dev(MOUNT_DATA_FILE, mop->mo_device))) {
441 (rc == 1) ? MOUNT_DATA_FILE : "extents");
442 /* in the -1 case, 'extents' means this really IS a lustre
447 if ((rc = file_in_dev(LAST_RCVD, mop->mo_device))) {
448 vprint("found %s\n", LAST_RCVD);
452 vprint("not found\n");
453 return 0; /* The device is not a lustre target. */
456 /* Check if a certain feature is supported by e2fsprogs.
457 * Firstly we try to use "debugfs supported_features" command to check if
458 * the feature is supported. If this fails we try to set this feature with
459 * mke2fs to check for its support. */
460 static int is_e2fsprogs_feature_supp(const char *feature)
464 char imgname[] = "/tmp/test-img-XXXXXX";
468 snprintf(cmd, sizeof(cmd),
469 "debugfs -c -R \"supported_features %s\" 2>&1", feature);
471 /* Using popen() instead of run_command() since debugfs does not return
472 * proper error code if command is not supported */
473 fp = popen(cmd, "r");
475 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
478 ret = fread(cmd, 1, sizeof(cmd), fp);
480 if (strstr(cmd, feature) && !(strstr(cmd, "Unknown")))
484 if ((fd = mkstemp(imgname)) < 0)
487 snprintf(cmd, sizeof(cmd), "mke2fs -F -O %s %s 100 >/dev/null 2>&1",
489 /* run_command() displays the output of mke2fs when it fails for
490 * some feature, so use system() directly */
498 static void disp_old_kernel_msg(char *feature)
500 fprintf(stderr, "WARNING: ldiskfs filesystem does not support \"%s\" "
501 "feature.\n\n", feature);
504 static void enable_default_backfs_features(struct mkfs_opts *mop)
507 int maj_high, maj_low, min;
510 strscat(mop->mo_mkfsopts, " -O dir_index", sizeof(mop->mo_mkfsopts));
512 /* Upstream e2fsprogs called our uninit_groups feature uninit_bg,
513 * check for both of them when testing e2fsprogs features. */
514 if (is_e2fsprogs_feature_supp("uninit_groups") == 0)
515 strscat(mop->mo_mkfsopts, ",uninit_groups",
516 sizeof(mop->mo_mkfsopts));
517 else if (is_e2fsprogs_feature_supp("uninit_bg") == 0)
518 strscat(mop->mo_mkfsopts, ",uninit_bg",
519 sizeof(mop->mo_mkfsopts));
521 disp_old_e2fsprogs_msg("uninit_bg", 1);
527 sscanf(uts.release, "%d.%d.%d", &maj_high, &maj_low, &min);
528 printf("%d %d %d\n", maj_high, maj_low, min);
530 /* Multiple mount protection is enabled only if failover node is
531 * specified and if kernel version is higher than 2.6.9 */
533 if (KERNEL_VERSION(maj_high, maj_low, min) >=
534 KERNEL_VERSION(2,6,9)) {
535 if (is_e2fsprogs_feature_supp("mmp") == 0)
536 strscat(mop->mo_mkfsopts, ",mmp",
537 sizeof(mop->mo_mkfsopts));
539 disp_old_e2fsprogs_msg("mmp", 1);
541 disp_old_kernel_msg("mmp");
545 /* Build fs according to type */
546 int make_lustre_backfs(struct mkfs_opts *mop)
548 char mkfs_cmd[PATH_MAX];
554 if (mop->mo_device_sz != 0) {
555 if (mop->mo_device_sz < 8096){
556 fprintf(stderr, "%s: size of filesystem must be larger "
557 "than 8MB, but is set to %lldKB\n",
558 progname, (long long)mop->mo_device_sz);
561 block_count = mop->mo_device_sz / (L_BLOCK_SIZE >> 10);
564 if ((mop->mo_ldd.ldd_mount_type == LDD_MT_EXT3) ||
565 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS) ||
566 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS2)) {
567 __u64 device_sz = mop->mo_device_sz;
569 /* we really need the size */
570 if (device_sz == 0) {
571 device_sz = get_device_size(mop->mo_device);
576 /* Journal size in MB */
577 if (strstr(mop->mo_mkfsopts, "-J") == NULL) {
578 /* Choose our own default journal size */
579 long journal_sz = 0, max_sz;
580 if (device_sz > 1024 * 1024) /* 1GB */
581 journal_sz = (device_sz / 102400) * 4;
582 /* cap journal size at 1GB */
583 if (journal_sz > 1024L)
586 max_sz = (256000 * L_BLOCK_SIZE) >> 20; /* 1GB */
587 if (journal_sz > max_sz)
590 sprintf(buf, " -J size=%ld", journal_sz);
591 strscat(mop->mo_mkfsopts, buf,
592 sizeof(mop->mo_mkfsopts));
596 /* Bytes_per_inode: disk size / num inodes */
597 if (strstr(mop->mo_mkfsopts, "-i") == NULL) {
598 long bytes_per_inode = 0;
600 if (IS_MDT(&mop->mo_ldd))
601 bytes_per_inode = 4096;
603 /* Allocate fewer inodes on large OST devices. Most
604 filesystems can be much more aggressive than even
606 if ((IS_OST(&mop->mo_ldd) && (device_sz > 100000000)))
607 bytes_per_inode = 16384; /* > 100 Gb device */
610 if (bytes_per_inode > 0) {
611 sprintf(buf, " -i %ld", bytes_per_inode);
612 strscat(mop->mo_mkfsopts, buf,
613 sizeof(mop->mo_mkfsopts));
617 /* Inode size (for extended attributes). The LOV EA size is
618 * 32 (EA hdr) + 32 (lov_mds_md) + stripes * 24 (lov_ost_data),
619 * and we want some margin above that for ACLs, other EAs... */
620 if (strstr(mop->mo_mkfsopts, "-I") == NULL) {
622 if (IS_MDT(&mop->mo_ldd)) {
623 if (mop->mo_stripe_count > 72)
624 inode_size = 512; /* bz 7241 */
625 /* cray stripes across all osts (>60) */
626 else if (mop->mo_stripe_count > 32)
628 else if (mop->mo_stripe_count > 10)
632 } else if (IS_OST(&mop->mo_ldd)) {
633 /* now as we store fids in EA on OST we need
634 to make inode bigger */
638 if (inode_size > 0) {
639 sprintf(buf, " -I %ld", inode_size);
640 strscat(mop->mo_mkfsopts, buf,
641 sizeof(mop->mo_mkfsopts));
646 strscat(mop->mo_mkfsopts, " -q",
647 sizeof(mop->mo_mkfsopts));
650 if (strstr(mop->mo_mkfsopts, "-O") == NULL)
651 enable_default_backfs_features(mop);
653 /* Allow reformat of full devices (as opposed to
654 partitions.) We already checked for mounted dev. */
655 strscat(mop->mo_mkfsopts, " -F", sizeof(mop->mo_mkfsopts));
657 snprintf(mkfs_cmd, sizeof(mkfs_cmd),
658 "mkfs.ext2 -j -b %d -L %s ", L_BLOCK_SIZE,
659 mop->mo_ldd.ldd_svname);
660 } else if (mop->mo_ldd.ldd_mount_type == LDD_MT_REISERFS) {
661 long journal_sz = 0; /* FIXME default journal size */
662 if (journal_sz > 0) {
663 sprintf(buf, " --journal_size %ld", journal_sz);
664 strscat(mop->mo_mkfsopts, buf,
665 sizeof(mop->mo_mkfsopts));
667 snprintf(mkfs_cmd, sizeof(mkfs_cmd), "mkreiserfs -ff ");
669 fprintf(stderr,"%s: unsupported fs type: %d (%s)\n",
670 progname, mop->mo_ldd.ldd_mount_type,
671 MT_STR(&mop->mo_ldd));
675 /* For loop device format the dev, not the filename */
676 dev = mop->mo_device;
677 if (mop->mo_flags & MO_IS_LOOP)
678 dev = mop->mo_loopdev;
680 vprint("formatting backing filesystem %s on %s\n",
681 MT_STR(&mop->mo_ldd), dev);
682 vprint("\ttarget name %s\n", mop->mo_ldd.ldd_svname);
683 vprint("\t4k blocks %d\n", block_count);
684 vprint("\toptions %s\n", mop->mo_mkfsopts);
686 /* mkfs_cmd's trailing space is important! */
687 strscat(mkfs_cmd, mop->mo_mkfsopts, sizeof(mkfs_cmd));
688 strscat(mkfs_cmd, " ", sizeof(mkfs_cmd));
689 strscat(mkfs_cmd, dev, sizeof(mkfs_cmd));
690 if (block_count != 0) {
691 sprintf(buf, " %d", block_count);
692 strscat(mkfs_cmd, buf, sizeof(mkfs_cmd));
695 vprint("mkfs_cmd = %s\n", mkfs_cmd);
696 ret = run_command(mkfs_cmd, sizeof(mkfs_cmd));
699 fprintf(stderr, "Unable to build fs %s (%d)\n", dev, ret);
704 /* ==================== Lustre config functions =============*/
706 void print_ldd(char *str, struct lustre_disk_data *ldd)
708 printf("\n %s:\n", str);
709 printf("Target: %s\n", ldd->ldd_svname);
710 if (ldd->ldd_svindex == INDEX_UNASSIGNED)
711 printf("Index: unassigned\n");
713 printf("Index: %d\n", ldd->ldd_svindex);
714 if (ldd->ldd_uuid[0])
715 printf("UUID: %s\n", (char *)ldd->ldd_uuid);
716 printf("Lustre FS: %s\n", ldd->ldd_fsname);
717 printf("Mount type: %s\n", MT_STR(ldd));
718 printf("Flags: %#x\n", ldd->ldd_flags);
719 printf(" (%s%s%s%s%s%s%s%s)\n",
720 IS_MDT(ldd) ? "MDT ":"",
721 IS_OST(ldd) ? "OST ":"",
722 IS_MGS(ldd) ? "MGS ":"",
723 ldd->ldd_flags & LDD_F_NEED_INDEX ? "needs_index ":"",
724 ldd->ldd_flags & LDD_F_VIRGIN ? "first_time ":"",
725 ldd->ldd_flags & LDD_F_UPDATE ? "update ":"",
726 ldd->ldd_flags & LDD_F_WRITECONF ? "writeconf ":"",
727 ldd->ldd_flags & LDD_F_UPGRADE14 ? "upgrade1.4 ":"");
728 printf("Persistent mount opts: %s\n", ldd->ldd_mount_opts);
729 printf("Parameters:%s\n", ldd->ldd_params);
730 if (ldd->ldd_userdata[0])
731 printf("Comment: %s\n", ldd->ldd_userdata);
735 /* Write the server config files */
736 int write_local_files(struct mkfs_opts *mop)
738 char mntpt[] = "/tmp/mntXXXXXX";
744 /* Mount this device temporarily in order to write these files */
745 if (!mkdtemp(mntpt)) {
746 fprintf(stderr, "%s: Can't create temp mount point %s: %s\n",
747 progname, mntpt, strerror(errno));
751 dev = mop->mo_device;
752 if (mop->mo_flags & MO_IS_LOOP)
753 dev = mop->mo_loopdev;
755 ret = mount(dev, mntpt, MT_STR(&mop->mo_ldd), 0, NULL);
757 fprintf(stderr, "%s: Unable to mount %s: %s\n",
758 progname, dev, strerror(errno));
760 if (errno == ENODEV) {
761 fprintf(stderr, "Is the %s module available?\n",
762 MT_STR(&mop->mo_ldd));
767 /* Set up initial directories */
768 sprintf(filepnm, "%s/%s", mntpt, MOUNT_CONFIGS_DIR);
769 ret = mkdir(filepnm, 0777);
770 if ((ret != 0) && (errno != EEXIST)) {
771 fprintf(stderr, "%s: Can't make configs dir %s (%s)\n",
772 progname, filepnm, strerror(errno));
774 } else if (errno == EEXIST) {
778 sprintf(filepnm, "%s/%s", mntpt, "ROOT");
779 ret = mkdir(filepnm, 0777);
780 if ((ret != 0) && (errno != EEXIST)) {
781 fprintf(stderr, "%s: Can't make ROOT dir %s (%s)\n",
782 progname, filepnm, strerror(errno));
784 } else if (errno == EEXIST) {
788 /* Save the persistent mount data into a file. Lustre must pre-read
789 this file to get the real mount options. */
790 vprint("Writing %s\n", MOUNT_DATA_FILE);
791 sprintf(filepnm, "%s/%s", mntpt, MOUNT_DATA_FILE);
792 filep = fopen(filepnm, "w");
794 fprintf(stderr, "%s: Unable to create %s file: %s\n",
795 progname, filepnm, strerror(errno));
798 fwrite(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
803 /* Check for upgrade */
804 if ((mop->mo_ldd.ldd_flags & (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS))
805 == (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS)) {
808 int cmdsz = sizeof(cmd);
809 vprint("Copying old logs\n");
811 /* Copy the old client log to fsname-client */
812 sprintf(filepnm, "%s/%s/%s-client",
813 mntpt, MOUNT_CONFIGS_DIR, mop->mo_ldd.ldd_fsname);
814 snprintf(cmd, cmdsz, "cp %s/%s/client %s", mntpt, MDT_LOGS_DIR,
816 ret = run_command(cmd, cmdsz);
818 fprintf(stderr, "%s: Can't copy 1.4 config %s/client "
819 "(%d)\n", progname, MDT_LOGS_DIR, ret);
820 fprintf(stderr, "mount -t ldiskfs %s somewhere, "
821 "find the client log for fs %s and "
822 "copy it manually into %s/%s-client, "
825 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
826 mop->mo_ldd.ldd_fsname);
830 /* We need to use the old mdt log because otherwise mdt won't
831 have complete lov if old clients connect before all
833 /* Copy the old mdt log to fsname-MDT0000 (get old
834 name from mdt_UUID) */
836 strscpy(filepnm, (char *)mop->mo_ldd.ldd_uuid, sizeof(filepnm));
837 term = strstr(filepnm, "_UUID");
840 snprintf(cmd, cmdsz, "cp %s/%s/%s %s/%s/%s",
841 mntpt, MDT_LOGS_DIR, filepnm,
842 mntpt, MOUNT_CONFIGS_DIR,
843 mop->mo_ldd.ldd_svname);
844 ret = run_command(cmd, cmdsz);
847 fprintf(stderr, "%s: Can't copy 1.4 config %s/%s "
848 "(%d)\n", progname, MDT_LOGS_DIR, filepnm, ret);
849 fprintf(stderr, "mount -t ext3 %s somewhere, "
850 "find the MDT log for fs %s and "
851 "copy it manually into %s/%s, "
854 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
855 mop->mo_ldd.ldd_svname);
870 int read_local_files(struct mkfs_opts *mop)
872 char tmpdir[] = "/tmp/dirXXXXXX";
878 int cmdsz = sizeof(cmd);
880 /* Make a temporary directory to hold Lustre data files. */
881 if (!mkdtemp(tmpdir)) {
882 fprintf(stderr, "%s: Can't create temporary directory %s: %s\n",
883 progname, tmpdir, strerror(errno));
887 dev = mop->mo_device;
889 /* TODO: it's worth observing the get_mountdata() function that is
890 in mount_utils.c for getting the mountdata out of the
893 /* Construct debugfs command line. */
894 snprintf(cmd, cmdsz, "debugfs -c -R 'dump /%s %s/mountdata' '%s'",
895 MOUNT_DATA_FILE, tmpdir, dev);
897 ret = run_command(cmd, cmdsz);
899 verrprint("%s: Unable to dump %s dir (%d)\n",
900 progname, MOUNT_CONFIGS_DIR, ret);
902 sprintf(filepnm, "%s/mountdata", tmpdir);
903 filep = fopen(filepnm, "r");
905 vprint("Reading %s\n", MOUNT_DATA_FILE);
906 fread(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
909 /* Try to read pre-1.6 config from last_rcvd */
910 struct lr_server_data lsd;
911 verrprint("%s: Unable to read %d.%d config %s.\n",
912 progname, LUSTRE_MAJOR, LUSTRE_MINOR, filepnm);
914 verrprint("Trying 1.4 config from last_rcvd\n");
915 sprintf(filepnm, "%s/%s", tmpdir, LAST_RCVD);
917 /* Construct debugfs command line. */
918 snprintf(cmd, cmdsz, "debugfs -c -R 'dump /%s %s' %s",
919 LAST_RCVD, filepnm, dev);
921 ret = run_command(cmd, cmdsz);
923 fprintf(stderr, "%s: Unable to dump %s file (%d)\n",
924 progname, LAST_RCVD, ret);
928 filep = fopen(filepnm, "r");
930 fprintf(stderr, "%s: Unable to open %s: %s\n",
931 progname, filepnm, strerror(errno));
933 verrprint("Contents of %s:\n", tmpdir);
935 snprintf(cmd, cmdsz, "ls -l %s/", tmpdir);
936 run_command(cmd, cmdsz);
937 verrprint("Contents of disk:\n");
938 snprintf(cmd, cmdsz, "debugfs -c -R 'ls -l /' %s", dev);
939 run_command(cmd, cmdsz);
943 vprint("Reading %s\n", LAST_RCVD);
944 ret = fread(&lsd, 1, sizeof(lsd), filep);
945 if (ret < sizeof(lsd)) {
946 fprintf(stderr, "%s: Short read (%d of %d)\n",
947 progname, ret, (int)sizeof(lsd));
952 vprint("Feature compat=%x, incompat=%x\n",
953 lsd.lsd_feature_compat, lsd.lsd_feature_incompat);
955 if ((lsd.lsd_feature_compat & OBD_COMPAT_OST) ||
956 (lsd.lsd_feature_incompat & OBD_INCOMPAT_OST)) {
957 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
958 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
959 } else if ((lsd.lsd_feature_compat & OBD_COMPAT_MDT) ||
960 (lsd.lsd_feature_incompat & OBD_INCOMPAT_MDT)) {
961 /* We must co-locate so mgs can see old logs.
962 If user doesn't want this, they can copy the old
963 logs manually and re-tunefs. */
964 mop->mo_ldd.ldd_flags =
965 LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_MGS;
966 mop->mo_ldd.ldd_svindex = lsd.lsd_mdt_index;
968 /* If neither is set, we're pre-1.4.6, make a guess. */
969 /* Construct debugfs command line. */
970 snprintf(cmd, cmdsz, "debugfs -c -R 'rdump /%s %s' %s",
971 MDT_LOGS_DIR, tmpdir, dev);
972 run_command(cmd, cmdsz);
974 sprintf(filepnm, "%s/%s", tmpdir, MDT_LOGS_DIR);
975 if (lsd.lsd_ost_index > 0) {
976 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
977 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
979 /* If there's a LOGS dir, it's an MDT */
980 if ((ret = access(filepnm, F_OK)) == 0) {
981 mop->mo_ldd.ldd_flags =
984 /* Old MDT's are always index 0
986 mop->mo_ldd.ldd_svindex = 0;
988 /* The index may not be correct */
989 mop->mo_ldd.ldd_flags =
990 LDD_F_SV_TYPE_OST | LDD_F_NEED_INDEX;
991 verrprint("OST with unknown index\n");
997 memcpy(mop->mo_ldd.ldd_uuid, lsd.lsd_uuid,
998 sizeof(mop->mo_ldd.ldd_uuid));
999 mop->mo_ldd.ldd_flags |= LDD_F_UPGRADE14;
1001 /* end COMPAT_146 */
1006 snprintf(cmd, cmdsz, "rm -rf %s", tmpdir);
1007 run_command(cmd, cmdsz);
1009 verrprint("Failed to read old data (%d)\n", ret);
1014 void set_defaults(struct mkfs_opts *mop)
1016 mop->mo_ldd.ldd_magic = LDD_MAGIC;
1017 mop->mo_ldd.ldd_config_ver = 1;
1018 mop->mo_ldd.ldd_flags = LDD_F_NEED_INDEX | LDD_F_UPDATE | LDD_F_VIRGIN;
1019 mop->mo_mgs_failnodes = 0;
1020 strcpy(mop->mo_ldd.ldd_fsname, "lustre");
1021 if (get_os_version() == 24)
1022 mop->mo_ldd.ldd_mount_type = LDD_MT_EXT3;
1024 mop->mo_ldd.ldd_mount_type = LDD_MT_LDISKFS;
1026 mop->mo_ldd.ldd_svindex = INDEX_UNASSIGNED;
1027 mop->mo_stripe_count = 1;
1030 static inline void badopt(const char *opt, char *type)
1032 fprintf(stderr, "%s: '--%s' only valid for %s\n",
1033 progname, opt, type);
1037 static int add_param(char *buf, char *key, char *val)
1039 int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
1040 int start = strlen(buf);
1044 keylen = strlen(key);
1045 if (start + 1 + keylen + strlen(val) >= end) {
1046 fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
1047 progname, buf, key ? key : "", val);
1051 sprintf(buf + start, " %s%s", key ? key : "", val);
1055 /* from mount_lustre */
1056 /* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
1057 #define MAXNIDSTR 1024
1058 static char *convert_hostnames(char *s1)
1060 char *converted, *s2 = 0, *c, *end, sep;
1061 int left = MAXNIDSTR;
1064 converted = malloc(left);
1065 if (converted == NULL) {
1069 end = s1 + strlen(s1);
1071 while ((left > 0) && (s1 < end)) {
1072 s2 = strpbrk(s1, ",:");
1077 nid = libcfs_str2nid(s1);
1079 if (nid == LNET_NID_ANY) {
1080 fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
1084 if (strncmp(libcfs_nid2str(nid), "127.0.0.1",
1085 strlen("127.0.0.1")) == 0) {
1086 fprintf(stderr, "%s: The NID '%s' resolves to the "
1087 "loopback address '%s'. Lustre requires a "
1088 "non-loopback address.\n",
1089 progname, s1, libcfs_nid2str(nid));
1094 c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
1095 left = converted + MAXNIDSTR - c;
1101 int parse_opts(int argc, char *const argv[], struct mkfs_opts *mop,
1104 static struct option long_opt[] = {
1105 {"backfstype", 1, 0, 'b'},
1106 {"stripe-count-hint", 1, 0, 'c'},
1107 {"comment", 1, 0, 'u'},
1108 {"configdev", 1, 0, 'C'},
1109 {"device-size", 1, 0, 'd'},
1110 {"dryrun", 0, 0, 'n'},
1111 {"erase-params", 0, 0, 'e'},
1112 {"failnode", 1, 0, 'f'},
1113 {"failover", 1, 0, 'f'},
1115 {"help", 0, 0, 'h'},
1116 {"index", 1, 0, 'i'},
1117 {"mkfsoptions", 1, 0, 'k'},
1118 {"mgsnode", 1, 0, 'm'},
1119 {"mgsnid", 1, 0, 'm'},
1121 {"fsname",1, 0, 'L'},
1122 {"noformat", 0, 0, 'n'},
1123 {"nomgs", 0, 0, 'N'},
1124 {"mountfsoptions", 1, 0, 'o'},
1126 {"param", 1, 0, 'p'},
1127 {"print", 0, 0, 'n'},
1128 {"quiet", 0, 0, 'q'},
1129 {"reformat", 0, 0, 'r'},
1130 {"verbose", 0, 0, 'v'},
1131 {"writeconf", 0, 0, 'w'},
1134 char *optstring = "b:c:C:d:ef:Ghi:k:L:m:MnNo:Op:Pqru:vw";
1138 while ((opt = getopt_long(argc, argv, optstring, long_opt, &longidx)) !=
1143 while (i < LDD_MT_LAST) {
1144 if (strcmp(optarg, mt_str(i)) == 0) {
1145 mop->mo_ldd.ldd_mount_type = i;
1153 if (IS_MDT(&mop->mo_ldd)) {
1154 int stripe_count = atol(optarg);
1155 if (stripe_count <= 0) {
1156 fprintf(stderr, "%s: bad stripe count "
1157 "%d\n", progname, stripe_count);
1160 mop->mo_stripe_count = stripe_count;
1162 badopt(long_opt[longidx].name, "MDT");
1166 case 'C': /* Configdev */
1168 printf("Configdev not implemented\n");
1171 mop->mo_device_sz = atol(optarg);
1174 mop->mo_ldd.ldd_params[0] = '\0';
1175 /* Must update the mgs logs */
1176 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1179 char *nids = convert_hostnames(optarg);
1182 rc = add_param(mop->mo_ldd.ldd_params, PARAM_FAILNODE,
1187 /* Must update the mgs logs */
1188 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1193 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MGS;
1199 if (!(mop->mo_ldd.ldd_flags &
1200 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1201 LDD_F_WRITECONF))) {
1202 fprintf(stderr, "%s: cannot change the index of"
1203 " a registered target\n", progname);
1206 if (IS_MDT(&mop->mo_ldd) || IS_OST(&mop->mo_ldd)) {
1207 mop->mo_ldd.ldd_svindex = atol(optarg);
1208 mop->mo_ldd.ldd_flags &= ~LDD_F_NEED_INDEX;
1210 badopt(long_opt[longidx].name, "MDT,OST");
1215 strscpy(mop->mo_mkfsopts, optarg,
1216 sizeof(mop->mo_mkfsopts));
1220 if (!(mop->mo_flags & MO_FORCEFORMAT) &&
1221 (!(mop->mo_ldd.ldd_flags &
1222 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1223 LDD_F_WRITECONF)))) {
1224 fprintf(stderr, "%s: cannot change the name of"
1225 " a registered target\n", progname);
1228 if ((strlen(optarg) < 1) || (strlen(optarg) > 8)) {
1229 fprintf(stderr, "%s: filesystem name must be "
1230 "1-8 chars\n", progname);
1233 if ((tmp = strpbrk(optarg, "/:"))) {
1234 fprintf(stderr, "%s: char '%c' not allowed in "
1235 "filesystem name\n", progname, *tmp);
1238 strscpy(mop->mo_ldd.ldd_fsname, optarg,
1239 sizeof(mop->mo_ldd.ldd_fsname));
1243 char *nids = convert_hostnames(optarg);
1246 rc = add_param(mop->mo_ldd.ldd_params, PARAM_MGSNODE,
1251 mop->mo_mgs_failnodes++;
1255 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MDT;
1261 mop->mo_ldd.ldd_flags &= ~LDD_F_SV_TYPE_MGS;
1264 *mountopts = optarg;
1267 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_OST;
1270 rc = add_param(mop->mo_ldd.ldd_params, NULL, optarg);
1273 /* Must update the mgs logs */
1274 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1280 mop->mo_flags |= MO_FORCEFORMAT;
1283 strscpy(mop->mo_ldd.ldd_userdata, optarg,
1284 sizeof(mop->mo_ldd.ldd_userdata));
1290 mop->mo_ldd.ldd_flags |= LDD_F_WRITECONF;
1295 fprintf(stderr, "Unknown option '%c'\n", opt);
1301 /* Last arg is device */
1302 if (optind != argc - 1) {
1304 fprintf(stderr, "Bad argument: %s\n", argv[optind]);
1311 #include <lustre/libiam.h>
1313 #define LDISKFS_IOC_GETVERSION _IOR('f', 3, long)
1315 #ifndef TUNEFS /* mkfs.lustre */
1316 static int mkfs_iam_insert(int key_need_convert, char *keybuf,
1317 int rec_need_convert, char *recbuf, char *filename)
1321 struct iam_uapi_info ua;
1323 fd = iam_open(filename, &ua);
1325 fprintf(stderr, "failed to iam_open %s\n", filename);
1329 ret = iam_insert(fd, &ua,
1330 key_need_convert, keybuf,
1331 rec_need_convert, recbuf);
1334 fprintf(stderr, "failed to iam_insert %s\n", filename);
1341 static int touch_file(char *filename)
1345 if (filename == NULL) {
1349 fd = open(filename, O_CREAT | O_TRUNC, 0600);
1358 static int get_generation(char *filename, unsigned long *result)
1363 if (filename == NULL) {
1367 fd = open(filename, O_RDONLY);
1369 fprintf(stderr, "%s: failed to open %s\n",
1370 __FUNCTION__, filename);
1374 ret = ioctl(fd, LDISKFS_IOC_GETVERSION, result);
1377 return ((ret < 0) ? ret : 0);
1380 static int mkfs_mdt(struct mkfs_opts *mop)
1382 char mntpt[] = "/tmp/mntXXXXXX";
1383 char fstype[] = "ldiskfs";
1388 unsigned long generation;
1391 source = mop->mo_device;
1392 if (mop->mo_flags & MO_IS_LOOP) {
1393 source = mop->mo_loopdev;
1396 if ((source == NULL) || (*source == 0)) {
1400 if (!mkdtemp(mntpt)) {
1401 fprintf(stderr, "%s: failed to mkdtemp %s\n",
1402 __FUNCTION__, mntpt);
1406 ret = mount(source, mntpt, fstype, 0, NULL);
1411 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "seq_ctl");
1412 ret = touch_file(filepnm);
1417 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "seq_srv");
1418 ret = touch_file(filepnm);
1423 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "last_received");
1424 ret = touch_file(filepnm);
1429 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "lov_objid");
1430 ret = touch_file(filepnm);
1435 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1436 ret = iam_creat(filepnm, FMT_LVAR, L_BLOCK_SIZE, 4, 17, 4);
1441 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "fld");
1442 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 8, 8, 4);
1447 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "orphans");
1448 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 20, 8, 4);
1453 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "oi.16");
1454 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 16, 8, 4);
1459 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "oi.5");
1460 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 5, 8, 4);
1465 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, CAPA_KEYS);
1466 ret = touch_file(filepnm);
1472 ret = mount(source, mntpt, fstype, 0, NULL);
1477 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1478 ret = iam_polymorph(filepnm, 040755);
1480 perror("IAM_IOC_POLYMORPH");
1485 ret = mount(source, mntpt, fstype, 0, NULL);
1490 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "fld");
1491 ret = mkfs_iam_insert(1, "0000000000000002", 1, "0000000000000000", filepnm);
1496 ret = mkfs_iam_insert(1, "0000000000000001", 1, "0000000000000000", filepnm);
1501 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1502 ret = stat(filepnm, &st);
1507 ret = get_generation(filepnm, &generation);
1512 snprintf(recbuf, sizeof(recbuf) - 1, "110000000000000001%8.8x%8.8x",
1513 (unsigned int)st.st_ino, (unsigned int)generation);
1514 ret = mkfs_iam_insert(0, ".", 1, recbuf, filepnm);
1519 ret = mkfs_iam_insert(0, "..", 1, recbuf, filepnm);
1532 int main(int argc, char *const argv[])
1534 struct mkfs_opts mop;
1535 struct lustre_disk_data *ldd;
1536 char *mountopts = NULL;
1537 char always_mountopts[512] = "";
1538 char default_mountopts[512] = "";
1541 if ((progname = strrchr(argv[0], '/')) != NULL)
1546 if ((argc < 2) || (argv[argc - 1][0] == '-')) {
1551 memset(&mop, 0, sizeof(mop));
1554 /* device is last arg */
1555 strscpy(mop.mo_device, argv[argc - 1], sizeof(mop.mo_device));
1557 /* Are we using a loop device? */
1558 ret = is_block(mop.mo_device);
1562 mop.mo_flags |= MO_IS_LOOP;
1565 /* For tunefs, we must read in the old values before parsing any
1568 /* Check whether the disk has already been formatted by mkfs.lustre */
1569 ret = is_lustre_target(&mop);
1572 fprintf(stderr, "Device %s has not been formatted with "
1573 "mkfs.lustre\n", mop.mo_device);
1578 ret = read_local_files(&mop);
1581 fprintf(stderr, "Failed to read previous Lustre data from %s "
1582 "(%d)\n", mop.mo_device, ret);
1585 if (strstr(mop.mo_ldd.ldd_params, PARAM_MGSNODE))
1586 mop.mo_mgs_failnodes++;
1589 print_ldd("Read previous values", &(mop.mo_ldd));
1592 ret = parse_opts(argc, argv, &mop, &mountopts);
1598 if (!(IS_MDT(ldd) || IS_OST(ldd) || IS_MGS(ldd))) {
1600 fprintf(stderr, "must set target type: MDT,OST,MGS\n");
1605 if (((IS_MDT(ldd) || IS_MGS(ldd))) && IS_OST(ldd)) {
1607 fprintf(stderr, "OST type is exclusive with MDT,MGS\n");
1612 if ((mop.mo_ldd.ldd_flags & (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) ==
1613 (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) {
1615 fprintf(stderr, "Can't find the target index, "
1616 "specify with --index\n");
1622 * Comment out these 2 checks temporarily, since for multi-MDSes
1623 * in single node only 1 mds node could have mgs service
1625 if (IS_MDT(ldd) && !IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1626 verrprint("No management node specified, adding MGS to this "
1628 ldd->ldd_flags |= LDD_F_SV_TYPE_MGS;
1630 if (!IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1633 fprintf(stderr, "Must specify --mgs or --mgsnode=\n");
1635 fprintf(stderr, "Must specify --mgsnode=\n");
1641 /* These are the permanent mount options (always included) */
1642 switch (ldd->ldd_mount_type) {
1644 case LDD_MT_LDISKFS:
1645 case LDD_MT_LDISKFS2: {
1646 sprintf(always_mountopts, "errors=remount-ro");
1647 if (IS_MDT(ldd) || IS_MGS(ldd))
1648 strscat(always_mountopts, ",iopen_nopriv,user_xattr",
1649 sizeof(always_mountopts));
1650 if ((get_os_version() == 24) && IS_OST(ldd))
1651 strscat(always_mountopts, ",asyncdel",
1652 sizeof(always_mountopts));
1653 /* NB: Files created while extents are enabled cannot be read
1654 if mounted with a kernel that doesn't include the Lustre ldiskfs
1657 (ldd->ldd_mount_type == LDD_MT_LDISKFS ||
1658 ldd->ldd_mount_type == LDD_MT_LDISKFS2)) {
1659 strscat(default_mountopts, ",extents,mballoc",
1660 sizeof(default_mountopts));
1665 mop.mo_flags |= MO_IS_LOOP;
1666 sprintf(always_mountopts, "type=ext3,dev=%s",
1672 fprintf(stderr, "unknown fs type %d '%s'\n",
1673 ldd->ldd_mount_type,
1681 /* If user specifies mount opts, don't use defaults,
1682 but always use always_mountopts */
1683 sprintf(ldd->ldd_mount_opts, "%s,%s",
1684 always_mountopts, mountopts);
1687 if (ldd->ldd_mount_opts[0] == 0)
1688 /* use the defaults unless old opts exist */
1691 sprintf(ldd->ldd_mount_opts, "%s%s",
1692 always_mountopts, default_mountopts);
1696 server_make_name(ldd->ldd_flags, ldd->ldd_svindex,
1697 ldd->ldd_fsname, ldd->ldd_svname);
1700 print_ldd("Permanent disk data", ldd);
1703 printf("exiting before disk write.\n");
1707 if (check_mtab_entry(mop.mo_device))
1710 /* Create the loopback file */
1711 if (mop.mo_flags & MO_IS_LOOP) {
1712 ret = access(mop.mo_device, F_OK);
1715 #ifndef TUNEFS /* mkfs.lustre */
1716 /* Reformat the loopback file */
1717 if (ret || (mop.mo_flags & MO_FORCEFORMAT))
1718 ret = loop_format(&mop);
1721 ret = loop_setup(&mop);
1724 fprintf(stderr, "Loop device setup for %s failed: %s\n",
1725 mop.mo_device, strerror(ret));
1730 #ifndef TUNEFS /* mkfs.lustre */
1731 /* Check whether the disk has already been formatted by mkfs.lustre */
1732 if (!(mop.mo_flags & MO_FORCEFORMAT)) {
1733 ret = is_lustre_target(&mop);
1736 fprintf(stderr, "Device %s was previously formatted "
1737 "for lustre. Use --reformat to reformat it, "
1738 "or tunefs.lustre to modify.\n",
1744 /* Format the backing filesystem */
1745 ret = make_lustre_backfs(&mop);
1748 fprintf(stderr, "mkfs failed %d\n", ret);
1753 /* Write our config files */
1754 ret = write_local_files(&mop);
1757 fprintf(stderr, "failed to write local files\n");
1761 #ifndef TUNEFS /* mkfs.lustre */
1763 ret = mkfs_mdt(&mop);
1765 fprintf(stderr, "failed to mkfs_mdt\n");
1774 /* Fix any crazy return values from system() */
1775 if (ret && ((ret & 255) == 0))
1778 verrprint("%s: exiting with %d (%s)\n",
1779 progname, ret, strerror(ret));