1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2006 Cluster File Systems, Inc.
5 * Author: Nathan Rutman <nathan@clusterfs.com>
7 * This file is part of Lustre, http://www.lustre.org.
9 * Lustre is free software; you can redistribute it and/or
10 * modify it under the terms of version 2 of the GNU General Public
11 * License as published by the Free Software Foundation.
13 * Lustre is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Lustre; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 /* This source file is compiled into both mkfs.lustre and tunefs.lustre */
33 #include <sys/types.h>
35 #include <sys/mount.h>
36 #include <sys/utsname.h>
43 #include <linux/fs.h> /* for BLKGETSIZE64 */
44 #include <linux/version.h>
46 #include <lustre_disk.h>
47 #include <lustre_param.h>
48 #include <lnet/lnetctl.h>
49 #include <lustre_ver.h>
55 #define MAX_LOOP_DEVICES 16
56 #define L_BLOCK_SIZE 4096
57 #define INDEX_UNASSIGNED 0xFFFF
58 #define MO_IS_LOOP 0x01
59 #define MO_FORCEFORMAT 0x02
61 /* used to describe the options to format the lustre disk, not persistent */
63 struct lustre_disk_data mo_ldd; /* to be written in MOUNT_DATA_FILE */
64 char mo_device[128]; /* disk device name */
65 char mo_mkfsopts[128]; /* options to the backing-store mkfs */
66 char mo_loopdev[128]; /* in case a loop dev is needed */
67 __u64 mo_device_sz; /* in KB */
73 static char *progname;
74 static int verbose = 1;
75 static int print_only = 0;
76 static int failover = 0;
80 fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
81 fprintf(out, "usage: %s <target types> [options] <device>\n", progname);
83 "\t<device>:block device or file (e.g /dev/sda or /tmp/ost1)\n"
85 "\t\t--ost: object storage, mutually exclusive with mdt,mgs\n"
86 "\t\t--mdt: metadata storage, mutually exclusive with ost\n"
87 "\t\t--mgs: configuration management service - one per site\n"
88 "\toptions (in order of popularity):\n"
89 "\t\t--mgsnode=<nid>[,<...>] : NID(s) of a remote mgs node\n"
90 "\t\t\trequired for all targets other than the mgs node\n"
91 "\t\t--fsname=<filesystem_name> : default is 'lustre'\n"
92 "\t\t--failnode=<nid>[,<...>] : NID(s) of a failover partner\n"
93 "\t\t--param <key>=<value> : set a permanent parameter\n"
94 "\t\t\te.g. --param sys.timeout=40\n"
95 "\t\t\t --param lov.stripesize=2M\n"
96 "\t\t--index=#N : target index (i.e. ost index within the lov)\n"
97 /* FIXME implement 1.6.x
98 "\t\t--configdev=<altdevice|file>: store configuration info\n"
99 "\t\t\tfor this device on an alternate device\n"
101 "\t\t--comment=<user comment>: arbitrary user string (%d bytes)\n"
102 "\t\t--mountfsoptions=<opts> : permanent mount options\n"
104 "\t\t--backfstype=<fstype> : backing fs type (ext3, ldiskfs)\n"
105 "\t\t--device-size=#N(KB) : device size for loop devices\n"
106 "\t\t--mkfsoptions=<opts> : format options\n"
107 "\t\t--reformat: overwrite an existing disk\n"
108 "\t\t--stripe-count-hint=#N : used for optimizing MDT inode size\n"
110 "\t\t--erase-params : erase all old parameter settings\n"
111 "\t\t--nomgs: turn off MGS service on this MDT\n"
112 "\t\t--writeconf: erase all config logs for this fs.\n"
114 "\t\t--dryrun: just report what we would do; "
115 "don't write to disk\n"
116 "\t\t--verbose : e.g. show mkfs progress\n"
118 (int)sizeof(((struct lustre_disk_data *)0)->ldd_userdata));
122 #define vprint if (verbose > 0) printf
123 #define verrprint if (verbose >= 0) printf
125 static void fatal(void)
128 fprintf(stderr, "\n%s FATAL: ", progname);
131 /*================ utility functions =====================*/
133 char *strscat(char *dst, char *src, int buflen) {
135 if (strlen(dst) + strlen(src) >= buflen) {
136 fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
137 "\n", buflen, dst, src);
140 return strcat(dst, src);
144 char *strscpy(char *dst, char *src, int buflen) {
146 return strscat(dst, src, buflen);
150 dev_major (unsigned long long int __dev)
152 return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
156 dev_minor (unsigned long long int __dev)
158 return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
163 static int version = 0;
167 char release[4] = "";
169 fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
171 fprintf(stderr, "%s: Warning: Can't resolve kernel "
172 "version, assuming 2.6\n", progname);
174 read(fd, release, 4);
177 if (strncmp(release, "2.4.", 4) == 0)
185 int run_command(char *cmd, int cmdsz)
187 char log[] = "/tmp/mkfs_logXXXXXX";
190 if ((cmdsz - strlen(cmd)) < 6) {
192 fprintf(stderr, "Command buffer overflow: %.*s...\n",
198 printf("cmd: %s\n", cmd);
200 if ((fd = mkstemp(log)) >= 0) {
206 strcat(cmd, " 2>&1");
208 /* Can't use popen because we need the rv of the command */
210 if (rc && (fd >= 0)) {
213 fp = fopen(log, "r");
215 while (fgets(buf, sizeof(buf), fp) != NULL) {
226 static int check_mtab_entry(char *spec)
231 fp = setmntent(MOUNTED, "r");
235 while ((mnt = getmntent(fp)) != NULL) {
236 if (strcmp(mnt->mnt_fsname, spec) == 0) {
238 fprintf(stderr, "%s: according to %s %s is "
239 "already mounted on %s\n",
240 progname, MOUNTED, spec, mnt->mnt_dir);
249 /*============ disk dev functions ===================*/
251 /* Setup a file in the first unused loop_device */
252 int loop_setup(struct mkfs_opts *mop)
258 /* Figure out the loop device names */
259 if (!access("/dev/loop0", F_OK | R_OK)) {
260 strcpy(loop_base, "/dev/loop\0");
261 } else if (!access("/dev/loop/0", F_OK | R_OK)) {
262 strcpy(loop_base, "/dev/loop/\0");
264 fprintf(stderr, "%s: can't access loop devices\n", progname);
268 /* Find unused loop device */
269 for (i = 0; i < MAX_LOOP_DEVICES; i++) {
271 int cmdsz = sizeof(cmd);
273 sprintf(l_device, "%s%d", loop_base, i);
274 if (access(l_device, F_OK | R_OK))
276 snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
279 /* losetup gets 1 (ret=256) for non-set-up device */
281 /* Set up a loopback device to our file */
282 snprintf(cmd, cmdsz, "losetup %s %s", l_device,
284 ret = run_command(cmd, cmdsz);
286 fprintf(stderr, "%s: error %d on losetup: %s\n",
287 progname, ret, strerror(ret));
290 strscpy(mop->mo_loopdev, l_device,
291 sizeof(mop->mo_loopdev));
296 fprintf(stderr, "%s: out of loop devices!\n", progname);
300 int loop_cleanup(struct mkfs_opts *mop)
304 if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
305 sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
306 ret = run_command(cmd, sizeof(cmd));
311 /* Determine if a device is a block device (as opposed to a file) */
312 int is_block(char* devname)
317 ret = access(devname, F_OK);
320 ret = stat(devname, &st);
322 fprintf(stderr, "%s: cannot stat %s\n", progname, devname);
325 return S_ISBLK(st.st_mode);
328 __u64 get_device_size(char* device)
333 fd = open(device, O_RDONLY);
335 fprintf(stderr, "%s: cannot open %s: %s\n",
336 progname, device, strerror(errno));
341 /* size in bytes. bz5831 */
342 ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
347 ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
348 size = (__u64)lsize * 512;
353 fprintf(stderr, "%s: size ioctl failed: %s\n",
354 progname, strerror(errno));
358 vprint("device size = "LPU64"MB\n", size >> 20);
359 /* return value in KB */
363 int loop_format(struct mkfs_opts *mop)
367 if (mop->mo_device_sz == 0) {
369 fprintf(stderr, "loop device requires a --device-size= "
374 ret = creat(mop->mo_device, S_IRUSR|S_IWUSR);
377 fprintf(stderr, "%s: Unable to create backing store: %d\n",
383 ret = truncate(mop->mo_device, mop->mo_device_sz * 1024);
386 fprintf(stderr, "%s: Unable to truncate backing store: %d\n",
393 /* Display the need for the latest e2fsprogs to be installed. make_backfs
394 * indicates if the caller is make_lustre_backfs() or not. */
395 static void disp_old_e2fsprogs_msg(const char *feature, int make_backfs)
397 static int msg_displayed;
400 fprintf(stderr, "WARNING: e2fsprogs does not support %s "
401 "feature.\n\n", feature);
407 fprintf(stderr, "WARNING: The e2fsprogs package currently installed on "
408 "your system does not support \"%s\" feature.\nPlease install "
409 "the latest version of e2fsprogs from http://www.clusterfs.com/"
410 "downloads/public/Lustre/Tools/e2fsprogs/\nto enable this "
411 "feature.\n", feature);
414 fprintf(stderr, "Feature will not be enabled until e2fsprogs "
415 "is updated and 'tune2fs -O %s %%{device}' "
416 "is run.\n\n", feature);
419 /* Check whether the file exists in the device */
420 static int file_in_dev(char *file_name, char *dev_name)
423 char debugfs_cmd[256];
424 unsigned int inode_num;
427 /* Construct debugfs command line. */
428 snprintf(debugfs_cmd, sizeof(debugfs_cmd),
429 "debugfs -c -R 'stat %s' %s 2>&1 | egrep '(Inode|unsupported)'",
430 file_name, dev_name);
432 fp = popen(debugfs_cmd, "r");
434 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
438 if (fscanf(fp, "Inode: %u", &inode_num) == 1) { /* exist */
442 i = fread(debugfs_cmd, 1, sizeof(debugfs_cmd), fp);
445 fprintf(stderr, "%s", debugfs_cmd);
446 if (strstr(debugfs_cmd, "unsupported feature")) {
447 disp_old_e2fsprogs_msg("an unknown", 0);
455 /* Check whether the device has already been used with lustre */
456 static int is_lustre_target(struct mkfs_opts *mop)
460 vprint("checking for existing Lustre data: ");
462 if ((rc = file_in_dev(MOUNT_DATA_FILE, mop->mo_device))) {
464 (rc == 1) ? MOUNT_DATA_FILE : "extents");
465 /* in the -1 case, 'extents' means this really IS a lustre
470 if ((rc = file_in_dev(LAST_RCVD, mop->mo_device))) {
471 vprint("found %s\n", LAST_RCVD);
475 vprint("not found\n");
476 return 0; /* The device is not a lustre target. */
479 /* Check if a certain feature is supported by e2fsprogs.
480 * Firstly we try to use "debugfs supported_features" command to check if
481 * the feature is supported. If this fails we try to set this feature with
482 * mke2fs to check for its support. */
483 static int is_e2fsprogs_feature_supp(const char *feature)
487 char imgname[] = "/tmp/test-img-XXXXXX";
491 snprintf(cmd, sizeof(cmd),
492 "debugfs -c -R \"supported_features %s\" 2>&1", feature);
494 /* Using popen() instead of run_command() since debugfs does not return
495 * proper error code if command is not supported */
496 fp = popen(cmd, "r");
498 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
501 ret = fread(cmd, 1, sizeof(cmd), fp);
503 if (strstr(cmd, feature) && !(strstr(cmd, "Unknown")))
507 if ((fd = mkstemp(imgname)) < 0)
510 snprintf(cmd, sizeof(cmd), "mke2fs -F -O %s %s 100 >/dev/null 2>&1",
512 /* run_command() displays the output of mke2fs when it fails for
513 * some feature, so use system() directly */
521 static void disp_old_kernel_msg(char *feature)
523 fprintf(stderr, "WARNING: ldiskfs filesystem does not support \"%s\" "
524 "feature.\n\n", feature);
527 static void enable_default_backfs_features(struct mkfs_opts *mop)
530 int maj_high, maj_low, min;
533 strscat(mop->mo_mkfsopts, " -O dir_index", sizeof(mop->mo_mkfsopts));
535 if (is_e2fsprogs_feature_supp("uninit_groups") == 0)
536 strscat(mop->mo_mkfsopts, ",uninit_groups",
537 sizeof(mop->mo_mkfsopts));
539 disp_old_e2fsprogs_msg("uninit_groups", 1);
545 sscanf(uts.release, "%d.%d.%d", &maj_high, &maj_low, &min);
546 printf("%d %d %d\n", maj_high, maj_low, min);
548 /* Multiple mount protection is enabled only if failover node is
549 * specified and if kernel version is higher than 2.6.9 */
551 if (KERNEL_VERSION(maj_high, maj_low, min) >=
552 KERNEL_VERSION(2,6,9)) {
553 if (is_e2fsprogs_feature_supp("mmp") == 0)
554 strscat(mop->mo_mkfsopts, ",mmp",
555 sizeof(mop->mo_mkfsopts));
557 disp_old_e2fsprogs_msg("mmp", 1);
559 disp_old_kernel_msg("mmp");
563 /* Build fs according to type */
564 int make_lustre_backfs(struct mkfs_opts *mop)
566 char mkfs_cmd[PATH_MAX];
572 if (mop->mo_device_sz != 0) {
573 if (mop->mo_device_sz < 8096){
574 fprintf(stderr, "%s: size of filesystem must be larger "
575 "than 8MB, but is set to %lldKB\n",
576 progname, (long long)mop->mo_device_sz);
579 block_count = mop->mo_device_sz / (L_BLOCK_SIZE >> 10);
582 if ((mop->mo_ldd.ldd_mount_type == LDD_MT_EXT3) ||
583 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS) ||
584 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS2)) {
585 __u64 device_sz = mop->mo_device_sz;
587 /* we really need the size */
588 if (device_sz == 0) {
589 device_sz = get_device_size(mop->mo_device);
594 /* Journal size in MB */
595 if (strstr(mop->mo_mkfsopts, "-J") == NULL) {
596 /* Choose our own default journal size */
597 long journal_sz = 0, max_sz;
598 if (device_sz > 1024 * 1024) /* 1GB */
599 journal_sz = (device_sz / 102400) * 4;
600 /* cap journal size at 1GB */
601 if (journal_sz > 1024L)
604 max_sz = (256000 * L_BLOCK_SIZE) >> 20; /* 1GB */
605 if (journal_sz > max_sz)
608 sprintf(buf, " -J size=%ld", journal_sz);
609 strscat(mop->mo_mkfsopts, buf,
610 sizeof(mop->mo_mkfsopts));
614 /* Bytes_per_inode: disk size / num inodes */
615 if (strstr(mop->mo_mkfsopts, "-i") == NULL) {
616 long bytes_per_inode = 0;
618 if (IS_MDT(&mop->mo_ldd))
619 bytes_per_inode = 4096;
621 /* Allocate fewer inodes on large OST devices. Most
622 filesystems can be much more aggressive than even
624 if ((IS_OST(&mop->mo_ldd) && (device_sz > 100000000)))
625 bytes_per_inode = 16384; /* > 100 Gb device */
628 if (bytes_per_inode > 0) {
629 sprintf(buf, " -i %ld", bytes_per_inode);
630 strscat(mop->mo_mkfsopts, buf,
631 sizeof(mop->mo_mkfsopts));
635 /* Inode size (for extended attributes). The LOV EA size is
636 * 32 (EA hdr) + 32 (lov_mds_md) + stripes * 24 (lov_ost_data),
637 * and we want some margin above that for ACLs, other EAs... */
638 if (strstr(mop->mo_mkfsopts, "-I") == NULL) {
640 if (IS_MDT(&mop->mo_ldd)) {
641 if (mop->mo_stripe_count > 72)
642 inode_size = 512; /* bz 7241 */
643 /* cray stripes across all osts (>60) */
644 else if (mop->mo_stripe_count > 32)
646 else if (mop->mo_stripe_count > 10)
650 } else if (IS_OST(&mop->mo_ldd)) {
651 /* now as we store fids in EA on OST we need
652 to make inode bigger */
656 if (inode_size > 0) {
657 sprintf(buf, " -I %ld", inode_size);
658 strscat(mop->mo_mkfsopts, buf,
659 sizeof(mop->mo_mkfsopts));
664 strscat(mop->mo_mkfsopts, " -q",
665 sizeof(mop->mo_mkfsopts));
668 if (strstr(mop->mo_mkfsopts, "-O") == NULL)
669 enable_default_backfs_features(mop);
671 /* Allow reformat of full devices (as opposed to
672 partitions.) We already checked for mounted dev. */
673 strscat(mop->mo_mkfsopts, " -F", sizeof(mop->mo_mkfsopts));
675 snprintf(mkfs_cmd, sizeof(mkfs_cmd),
676 "mkfs.ext2 -j -b %d -L %s ", L_BLOCK_SIZE,
677 mop->mo_ldd.ldd_svname);
678 } else if (mop->mo_ldd.ldd_mount_type == LDD_MT_REISERFS) {
679 long journal_sz = 0; /* FIXME default journal size */
680 if (journal_sz > 0) {
681 sprintf(buf, " --journal_size %ld", journal_sz);
682 strscat(mop->mo_mkfsopts, buf,
683 sizeof(mop->mo_mkfsopts));
685 snprintf(mkfs_cmd, sizeof(mkfs_cmd), "mkreiserfs -ff ");
687 fprintf(stderr,"%s: unsupported fs type: %d (%s)\n",
688 progname, mop->mo_ldd.ldd_mount_type,
689 MT_STR(&mop->mo_ldd));
693 /* For loop device format the dev, not the filename */
694 dev = mop->mo_device;
695 if (mop->mo_flags & MO_IS_LOOP)
696 dev = mop->mo_loopdev;
698 vprint("formatting backing filesystem %s on %s\n",
699 MT_STR(&mop->mo_ldd), dev);
700 vprint("\ttarget name %s\n", mop->mo_ldd.ldd_svname);
701 vprint("\t4k blocks %d\n", block_count);
702 vprint("\toptions %s\n", mop->mo_mkfsopts);
704 /* mkfs_cmd's trailing space is important! */
705 strscat(mkfs_cmd, mop->mo_mkfsopts, sizeof(mkfs_cmd));
706 strscat(mkfs_cmd, " ", sizeof(mkfs_cmd));
707 strscat(mkfs_cmd, dev, sizeof(mkfs_cmd));
708 if (block_count != 0) {
709 sprintf(buf, " %d", block_count);
710 strscat(mkfs_cmd, buf, sizeof(mkfs_cmd));
713 vprint("mkfs_cmd = %s\n", mkfs_cmd);
714 ret = run_command(mkfs_cmd, sizeof(mkfs_cmd));
717 fprintf(stderr, "Unable to build fs %s (%d)\n", dev, ret);
722 /* ==================== Lustre config functions =============*/
724 void print_ldd(char *str, struct lustre_disk_data *ldd)
726 printf("\n %s:\n", str);
727 printf("Target: %s\n", ldd->ldd_svname);
728 if (ldd->ldd_svindex == INDEX_UNASSIGNED)
729 printf("Index: unassigned\n");
731 printf("Index: %d\n", ldd->ldd_svindex);
732 if (ldd->ldd_uuid[0])
733 printf("UUID: %s\n", (char *)ldd->ldd_uuid);
734 printf("Lustre FS: %s\n", ldd->ldd_fsname);
735 printf("Mount type: %s\n", MT_STR(ldd));
736 printf("Flags: %#x\n", ldd->ldd_flags);
737 printf(" (%s%s%s%s%s%s%s%s)\n",
738 IS_MDT(ldd) ? "MDT ":"",
739 IS_OST(ldd) ? "OST ":"",
740 IS_MGS(ldd) ? "MGS ":"",
741 ldd->ldd_flags & LDD_F_NEED_INDEX ? "needs_index ":"",
742 ldd->ldd_flags & LDD_F_VIRGIN ? "first_time ":"",
743 ldd->ldd_flags & LDD_F_UPDATE ? "update ":"",
744 ldd->ldd_flags & LDD_F_WRITECONF ? "writeconf ":"",
745 ldd->ldd_flags & LDD_F_UPGRADE14 ? "upgrade1.4 ":"");
746 printf("Persistent mount opts: %s\n", ldd->ldd_mount_opts);
747 printf("Parameters:%s\n", ldd->ldd_params);
748 if (ldd->ldd_userdata[0])
749 printf("Comment: %s\n", ldd->ldd_userdata);
753 /* Write the server config files */
754 int write_local_files(struct mkfs_opts *mop)
756 char mntpt[] = "/tmp/mntXXXXXX";
762 /* Mount this device temporarily in order to write these files */
763 if (!mkdtemp(mntpt)) {
764 fprintf(stderr, "%s: Can't create temp mount point %s: %s\n",
765 progname, mntpt, strerror(errno));
769 dev = mop->mo_device;
770 if (mop->mo_flags & MO_IS_LOOP)
771 dev = mop->mo_loopdev;
773 ret = mount(dev, mntpt, MT_STR(&mop->mo_ldd), 0, NULL);
775 fprintf(stderr, "%s: Unable to mount %s: %s\n",
776 progname, dev, strerror(errno));
778 if (errno == ENODEV) {
779 fprintf(stderr, "Is the %s module available?\n",
780 MT_STR(&mop->mo_ldd));
785 /* Set up initial directories */
786 sprintf(filepnm, "%s/%s", mntpt, MOUNT_CONFIGS_DIR);
787 ret = mkdir(filepnm, 0777);
788 if ((ret != 0) && (errno != EEXIST)) {
789 fprintf(stderr, "%s: Can't make configs dir %s (%s)\n",
790 progname, filepnm, strerror(errno));
792 } else if (errno == EEXIST) {
796 sprintf(filepnm, "%s/%s", mntpt, "ROOT");
797 ret = mkdir(filepnm, 0777);
798 if ((ret != 0) && (errno != EEXIST)) {
799 fprintf(stderr, "%s: Can't make ROOT dir %s (%s)\n",
800 progname, filepnm, strerror(errno));
802 } else if (errno == EEXIST) {
806 /* Save the persistent mount data into a file. Lustre must pre-read
807 this file to get the real mount options. */
808 vprint("Writing %s\n", MOUNT_DATA_FILE);
809 sprintf(filepnm, "%s/%s", mntpt, MOUNT_DATA_FILE);
810 filep = fopen(filepnm, "w");
812 fprintf(stderr, "%s: Unable to create %s file: %s\n",
813 progname, filepnm, strerror(errno));
816 fwrite(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
821 /* Check for upgrade */
822 if ((mop->mo_ldd.ldd_flags & (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS))
823 == (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS)) {
826 int cmdsz = sizeof(cmd);
827 vprint("Copying old logs\n");
829 /* Copy the old client log to fsname-client */
830 sprintf(filepnm, "%s/%s/%s-client",
831 mntpt, MOUNT_CONFIGS_DIR, mop->mo_ldd.ldd_fsname);
832 snprintf(cmd, cmdsz, "cp %s/%s/client %s", mntpt, MDT_LOGS_DIR,
834 ret = run_command(cmd, cmdsz);
836 fprintf(stderr, "%s: Can't copy 1.4 config %s/client "
837 "(%d)\n", progname, MDT_LOGS_DIR, ret);
838 fprintf(stderr, "mount -t ldiskfs %s somewhere, "
839 "find the client log for fs %s and "
840 "copy it manually into %s/%s-client, "
843 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
844 mop->mo_ldd.ldd_fsname);
848 /* We need to use the old mdt log because otherwise mdt won't
849 have complete lov if old clients connect before all
851 /* Copy the old mdt log to fsname-MDT0000 (get old
852 name from mdt_UUID) */
854 strscpy(filepnm, (char *)mop->mo_ldd.ldd_uuid, sizeof(filepnm));
855 term = strstr(filepnm, "_UUID");
858 snprintf(cmd, cmdsz, "cp %s/%s/%s %s/%s/%s",
859 mntpt, MDT_LOGS_DIR, filepnm,
860 mntpt, MOUNT_CONFIGS_DIR,
861 mop->mo_ldd.ldd_svname);
862 ret = run_command(cmd, cmdsz);
865 fprintf(stderr, "%s: Can't copy 1.4 config %s/%s "
866 "(%d)\n", progname, MDT_LOGS_DIR, filepnm, ret);
867 fprintf(stderr, "mount -t ext3 %s somewhere, "
868 "find the MDT log for fs %s and "
869 "copy it manually into %s/%s, "
872 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
873 mop->mo_ldd.ldd_svname);
888 int read_local_files(struct mkfs_opts *mop)
890 char tmpdir[] = "/tmp/dirXXXXXX";
896 int cmdsz = sizeof(cmd);
898 /* Make a temporary directory to hold Lustre data files. */
899 if (!mkdtemp(tmpdir)) {
900 fprintf(stderr, "%s: Can't create temporary directory %s: %s\n",
901 progname, tmpdir, strerror(errno));
905 dev = mop->mo_device;
907 /* Construct debugfs command line. */
908 snprintf(cmd, cmdsz, "debugfs -c -R 'dump /%s %s/mountdata' %s",
909 MOUNT_DATA_FILE, tmpdir, dev);
911 ret = run_command(cmd, cmdsz);
913 verrprint("%s: Unable to dump %s dir (%d)\n",
914 progname, MOUNT_CONFIGS_DIR, ret);
916 sprintf(filepnm, "%s/mountdata", tmpdir);
917 filep = fopen(filepnm, "r");
919 vprint("Reading %s\n", MOUNT_DATA_FILE);
920 fread(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
923 /* Try to read pre-1.6 config from last_rcvd */
924 struct lr_server_data lsd;
925 verrprint("%s: Unable to read %s (%s).\n",
926 progname, filepnm, strerror(errno));
928 verrprint("Trying last_rcvd\n");
929 sprintf(filepnm, "%s/%s", tmpdir, LAST_RCVD);
931 /* Construct debugfs command line. */
932 snprintf(cmd, cmdsz, "debugfs -c -R 'dump /%s %s' %s",
933 LAST_RCVD, filepnm, dev);
935 ret = run_command(cmd, cmdsz);
937 fprintf(stderr, "%s: Unable to dump %s file (%d)\n",
938 progname, LAST_RCVD, ret);
942 filep = fopen(filepnm, "r");
944 fprintf(stderr, "%s: Unable to open %s: %s\n",
945 progname, filepnm, strerror(errno));
947 verrprint("Contents of %s:\n", tmpdir);
949 snprintf(cmd, cmdsz, "ls -l %s/", tmpdir);
950 run_command(cmd, cmdsz);
951 verrprint("Contents of disk:\n");
952 snprintf(cmd, cmdsz, "debugfs -c -R 'ls -l /' %s", dev);
953 run_command(cmd, cmdsz);
957 vprint("Reading %s\n", LAST_RCVD);
958 ret = fread(&lsd, 1, sizeof(lsd), filep);
959 if (ret < sizeof(lsd)) {
960 fprintf(stderr, "%s: Short read (%d of %d)\n",
961 progname, ret, (int)sizeof(lsd));
966 vprint("Feature compat=%x, incompat=%x\n",
967 lsd.lsd_feature_compat, lsd.lsd_feature_incompat);
969 if ((lsd.lsd_feature_compat & OBD_COMPAT_OST) ||
970 (lsd.lsd_feature_incompat & OBD_INCOMPAT_OST)) {
971 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
972 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
973 } else if ((lsd.lsd_feature_compat & OBD_COMPAT_MDT) ||
974 (lsd.lsd_feature_incompat & OBD_INCOMPAT_MDT)) {
975 /* We must co-locate so mgs can see old logs.
976 If user doesn't want this, they can copy the old
977 logs manually and re-tunefs. */
978 mop->mo_ldd.ldd_flags =
979 LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_MGS;
980 mop->mo_ldd.ldd_svindex = lsd.lsd_mdt_index;
982 /* If neither is set, we're pre-1.4.6, make a guess. */
983 /* Construct debugfs command line. */
984 snprintf(cmd, cmdsz, "debugfs -c -R 'rdump /%s %s' %s",
985 MDT_LOGS_DIR, tmpdir, dev);
986 run_command(cmd, cmdsz);
988 sprintf(filepnm, "%s/%s", tmpdir, MDT_LOGS_DIR);
989 if (lsd.lsd_ost_index > 0) {
990 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
991 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
993 /* If there's a LOGS dir, it's an MDT */
994 if ((ret = access(filepnm, F_OK)) == 0) {
995 mop->mo_ldd.ldd_flags =
998 /* Old MDT's are always index 0
1000 mop->mo_ldd.ldd_svindex = 0;
1002 /* The index may not be correct */
1003 mop->mo_ldd.ldd_flags =
1004 LDD_F_SV_TYPE_OST | LDD_F_NEED_INDEX;
1005 verrprint("OST with unknown index\n");
1011 memcpy(mop->mo_ldd.ldd_uuid, lsd.lsd_uuid,
1012 sizeof(mop->mo_ldd.ldd_uuid));
1013 mop->mo_ldd.ldd_flags |= LDD_F_UPGRADE14;
1015 /* end COMPAT_146 */
1020 snprintf(cmd, cmdsz, "rm -rf %s", tmpdir);
1021 run_command(cmd, cmdsz);
1023 verrprint("Failed to read old data (%d)\n", ret);
1028 void set_defaults(struct mkfs_opts *mop)
1030 mop->mo_ldd.ldd_magic = LDD_MAGIC;
1031 mop->mo_ldd.ldd_config_ver = 1;
1032 mop->mo_ldd.ldd_flags = LDD_F_NEED_INDEX | LDD_F_UPDATE | LDD_F_VIRGIN;
1033 mop->mo_mgs_failnodes = 0;
1034 strcpy(mop->mo_ldd.ldd_fsname, "lustre");
1035 if (get_os_version() == 24)
1036 mop->mo_ldd.ldd_mount_type = LDD_MT_EXT3;
1038 mop->mo_ldd.ldd_mount_type = LDD_MT_LDISKFS;
1040 mop->mo_ldd.ldd_svindex = INDEX_UNASSIGNED;
1041 mop->mo_stripe_count = 1;
1044 static inline void badopt(const char *opt, char *type)
1046 fprintf(stderr, "%s: '--%s' only valid for %s\n",
1047 progname, opt, type);
1051 static int add_param(char *buf, char *key, char *val)
1053 int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
1054 int start = strlen(buf);
1058 keylen = strlen(key);
1059 if (start + 1 + keylen + strlen(val) >= end) {
1060 fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
1061 progname, buf, key ? key : "", val);
1065 sprintf(buf + start, " %s%s", key ? key : "", val);
1069 /* from mount_lustre */
1070 /* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
1071 #define MAXNIDSTR 1024
1072 static char *convert_hostnames(char *s1)
1074 char *converted, *s2 = 0, *c;
1075 int left = MAXNIDSTR;
1078 converted = malloc(left);
1079 if (converted == NULL) {
1084 while ((left > 0) && ((s2 = strsep(&s1, ",: \0")))) {
1085 nid = libcfs_str2nid(s2);
1086 if (nid == LNET_NID_ANY) {
1090 fprintf(stderr, "%s: Can't parse NID '%s'\n",
1096 if (strncmp(libcfs_nid2str(nid), "127.0.0.1",
1097 strlen("127.0.0.1")) == 0) {
1098 fprintf(stderr, "%s: The NID '%s' resolves to the "
1099 "loopback address '%s'. Lustre requires a "
1100 "non-loopback address.\n",
1101 progname, s2, libcfs_nid2str(nid));
1106 c += snprintf(c, left, "%s,", libcfs_nid2str(nid));
1107 left = converted + MAXNIDSTR - c;
1113 int parse_opts(int argc, char *const argv[], struct mkfs_opts *mop,
1116 static struct option long_opt[] = {
1117 {"backfstype", 1, 0, 'b'},
1118 {"stripe-count-hint", 1, 0, 'c'},
1119 {"comment", 1, 0, 'u'},
1120 {"configdev", 1, 0, 'C'},
1121 {"device-size", 1, 0, 'd'},
1122 {"dryrun", 0, 0, 'n'},
1123 {"erase-params", 0, 0, 'e'},
1124 {"failnode", 1, 0, 'f'},
1125 {"failover", 1, 0, 'f'},
1127 {"help", 0, 0, 'h'},
1128 {"index", 1, 0, 'i'},
1129 {"mkfsoptions", 1, 0, 'k'},
1130 {"mgsnode", 1, 0, 'm'},
1131 {"mgsnid", 1, 0, 'm'},
1133 {"fsname",1, 0, 'L'},
1134 {"noformat", 0, 0, 'n'},
1135 {"nomgs", 0, 0, 'N'},
1136 {"mountfsoptions", 1, 0, 'o'},
1138 {"param", 1, 0, 'p'},
1139 {"print", 0, 0, 'n'},
1140 {"quiet", 0, 0, 'q'},
1141 {"reformat", 0, 0, 'r'},
1142 {"verbose", 0, 0, 'v'},
1143 {"writeconf", 0, 0, 'w'},
1146 char *optstring = "b:c:C:d:ef:Ghi:k:L:m:MnNo:Op:Pqru:vw";
1150 while ((opt = getopt_long(argc, argv, optstring, long_opt, &longidx)) !=
1155 while (i < LDD_MT_LAST) {
1156 if (strcmp(optarg, mt_str(i)) == 0) {
1157 mop->mo_ldd.ldd_mount_type = i;
1165 if (IS_MDT(&mop->mo_ldd)) {
1166 int stripe_count = atol(optarg);
1167 if (stripe_count <= 0) {
1168 fprintf(stderr, "%s: bad stripe count "
1169 "%d\n", progname, stripe_count);
1172 mop->mo_stripe_count = stripe_count;
1174 badopt(long_opt[longidx].name, "MDT");
1178 case 'C': /* Configdev */
1180 printf("Configdev not implemented\n");
1183 mop->mo_device_sz = atol(optarg);
1186 mop->mo_ldd.ldd_params[0] = '\0';
1187 /* Must update the mgs logs */
1188 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1191 char *nids = convert_hostnames(optarg);
1194 rc = add_param(mop->mo_ldd.ldd_params, PARAM_FAILNODE,
1196 /* Combo needs to add MDT failnodes as MGS failnodes
1198 if (!rc && IS_MGS(&mop->mo_ldd)) {
1199 rc = add_param(mop->mo_ldd.ldd_params,
1200 PARAM_MGSNODE, nids);
1205 /* Must update the mgs logs */
1206 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1211 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MGS;
1217 if (!(mop->mo_ldd.ldd_flags &
1218 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1219 LDD_F_WRITECONF))) {
1220 fprintf(stderr, "%s: cannot change the index of"
1221 " a registered target\n", progname);
1224 if (IS_MDT(&mop->mo_ldd) || IS_OST(&mop->mo_ldd)) {
1225 mop->mo_ldd.ldd_svindex = atol(optarg);
1226 mop->mo_ldd.ldd_flags &= ~LDD_F_NEED_INDEX;
1228 badopt(long_opt[longidx].name, "MDT,OST");
1233 strscpy(mop->mo_mkfsopts, optarg,
1234 sizeof(mop->mo_mkfsopts));
1238 if (!(mop->mo_flags & MO_FORCEFORMAT) &&
1239 (!(mop->mo_ldd.ldd_flags &
1240 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1241 LDD_F_WRITECONF)))) {
1242 fprintf(stderr, "%s: cannot change the name of"
1243 " a registered target\n", progname);
1246 if ((strlen(optarg) < 1) || (strlen(optarg) > 8)) {
1247 fprintf(stderr, "%s: filesystem name must be "
1248 "1-8 chars\n", progname);
1251 if ((tmp = strpbrk(optarg, "/:"))) {
1252 fprintf(stderr, "%s: char '%c' not allowed in "
1253 "filesystem name\n", progname, *tmp);
1256 strscpy(mop->mo_ldd.ldd_fsname, optarg,
1257 sizeof(mop->mo_ldd.ldd_fsname));
1261 char *nids = convert_hostnames(optarg);
1264 rc = add_param(mop->mo_ldd.ldd_params, PARAM_MGSNODE,
1269 mop->mo_mgs_failnodes++;
1273 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MDT;
1279 mop->mo_ldd.ldd_flags &= ~LDD_F_SV_TYPE_MGS;
1282 *mountopts = optarg;
1285 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_OST;
1288 rc = add_param(mop->mo_ldd.ldd_params, NULL, optarg);
1291 /* Must update the mgs logs */
1292 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1298 mop->mo_flags |= MO_FORCEFORMAT;
1301 strscpy(mop->mo_ldd.ldd_userdata, optarg,
1302 sizeof(mop->mo_ldd.ldd_userdata));
1308 mop->mo_ldd.ldd_flags |= LDD_F_WRITECONF;
1313 fprintf(stderr, "Unknown option '%c'\n", opt);
1319 /* Last arg is device */
1320 if (optind != argc - 1) {
1322 fprintf(stderr, "Bad argument: %s\n", argv[optind]);
1329 #include <lustre/libiam.h>
1331 #define LDISKFS_IOC_GETVERSION _IOR('f', 3, long)
1333 #ifndef TUNEFS /* mkfs.lustre */
1334 static int mkfs_iam_insert(int key_need_convert, char *keybuf,
1335 int rec_need_convert, char *recbuf, char *filename)
1339 struct iam_uapi_info ua;
1341 fd = iam_open(filename, &ua);
1343 fprintf(stderr, "failed to iam_open %s\n", filename);
1347 ret = iam_insert(fd, &ua,
1348 key_need_convert, keybuf,
1349 rec_need_convert, recbuf);
1352 fprintf(stderr, "failed to iam_insert %s\n", filename);
1359 static int touch_file(char *filename)
1363 if (filename == NULL) {
1367 fd = open(filename, O_CREAT | O_TRUNC, 0600);
1376 static int get_generation(char *filename, unsigned long *result)
1381 if (filename == NULL) {
1385 fd = open(filename, O_RDONLY);
1387 fprintf(stderr, "%s: failed to open %s\n",
1388 __FUNCTION__, filename);
1392 ret = ioctl(fd, LDISKFS_IOC_GETVERSION, result);
1395 return ((ret < 0) ? ret : 0);
1398 static int mkfs_mdt(struct mkfs_opts *mop)
1400 char mntpt[] = "/tmp/mntXXXXXX";
1401 char fstype[] = "ldiskfs";
1406 unsigned long generation;
1409 source = mop->mo_device;
1410 if (mop->mo_flags & MO_IS_LOOP) {
1411 source = mop->mo_loopdev;
1414 if ((source == NULL) || (*source == 0)) {
1418 if (!mkdtemp(mntpt)) {
1419 fprintf(stderr, "%s: failed to mkdtemp %s\n",
1420 __FUNCTION__, mntpt);
1424 ret = mount(source, mntpt, fstype, 0, NULL);
1429 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "seq_ctl");
1430 ret = touch_file(filepnm);
1435 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "seq_srv");
1436 ret = touch_file(filepnm);
1441 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "last_received");
1442 ret = touch_file(filepnm);
1447 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "lov_objid");
1448 ret = touch_file(filepnm);
1453 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1454 ret = iam_creat(filepnm, FMT_LVAR, L_BLOCK_SIZE, 4, 17, 4);
1459 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "fld");
1460 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 8, 8, 4);
1465 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "orphans");
1466 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 20, 8, 4);
1471 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "oi.16");
1472 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 16, 8, 4);
1477 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "oi.5");
1478 ret = iam_creat(filepnm, FMT_LFIX, L_BLOCK_SIZE, 5, 8, 4);
1483 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, CAPA_KEYS);
1484 ret = touch_file(filepnm);
1490 ret = mount(source, mntpt, fstype, 0, NULL);
1495 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1496 ret = iam_polymorph(filepnm, 040755);
1498 perror("IAM_IOC_POLYMORPH");
1503 ret = mount(source, mntpt, fstype, 0, NULL);
1508 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "fld");
1509 ret = mkfs_iam_insert(1, "0000000000000002", 1, "0000000000000000", filepnm);
1514 ret = mkfs_iam_insert(1, "0000000000000001", 1, "0000000000000000", filepnm);
1519 snprintf(filepnm, sizeof(filepnm) - 1, "%s/%s", mntpt, "root");
1520 ret = stat(filepnm, &st);
1525 ret = get_generation(filepnm, &generation);
1530 snprintf(recbuf, sizeof(recbuf) - 1, "110000000000000001%8.8x%8.8x",
1531 (unsigned int)st.st_ino, (unsigned int)generation);
1532 ret = mkfs_iam_insert(0, ".", 1, recbuf, filepnm);
1537 ret = mkfs_iam_insert(0, "..", 1, recbuf, filepnm);
1550 int main(int argc, char *const argv[])
1552 struct mkfs_opts mop;
1553 struct lustre_disk_data *ldd;
1554 char *mountopts = NULL;
1555 char always_mountopts[512] = "";
1556 char default_mountopts[512] = "";
1559 if ((progname = strrchr(argv[0], '/')) != NULL)
1564 if ((argc < 2) || (argv[argc - 1][0] == '-')) {
1569 memset(&mop, 0, sizeof(mop));
1572 /* device is last arg */
1573 strscpy(mop.mo_device, argv[argc - 1], sizeof(mop.mo_device));
1575 /* Are we using a loop device? */
1576 ret = is_block(mop.mo_device);
1580 mop.mo_flags |= MO_IS_LOOP;
1583 /* For tunefs, we must read in the old values before parsing any
1586 /* Check whether the disk has already been formatted by mkfs.lustre */
1587 ret = is_lustre_target(&mop);
1590 fprintf(stderr, "Device %s has not been formatted with "
1591 "mkfs.lustre\n", mop.mo_device);
1596 ret = read_local_files(&mop);
1599 fprintf(stderr, "Failed to read previous Lustre data from %s "
1600 "(%d)\n", mop.mo_device, ret);
1603 if (strstr(mop.mo_ldd.ldd_params, PARAM_MGSNODE))
1604 mop.mo_mgs_failnodes++;
1607 print_ldd("Read previous values", &(mop.mo_ldd));
1610 ret = parse_opts(argc, argv, &mop, &mountopts);
1616 if (!(IS_MDT(ldd) || IS_OST(ldd) || IS_MGS(ldd))) {
1618 fprintf(stderr, "must set target type: MDT,OST,MGS\n");
1623 if (((IS_MDT(ldd) || IS_MGS(ldd))) && IS_OST(ldd)) {
1625 fprintf(stderr, "OST type is exclusive with MDT,MGS\n");
1630 if ((mop.mo_ldd.ldd_flags & (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) ==
1631 (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) {
1633 fprintf(stderr, "Can't find the target index, "
1634 "specify with --index\n");
1640 * Comment out these 2 checks temporarily, since for multi-MDSes
1641 * in single node only 1 mds node could have mgs service
1643 if (IS_MDT(ldd) && !IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1644 verrprint("No management node specified, adding MGS to this "
1646 ldd->ldd_flags |= LDD_F_SV_TYPE_MGS;
1648 if (!IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1651 fprintf(stderr, "Must specify --mgs or --mgsnode=\n");
1653 fprintf(stderr, "Must specify --mgsnode=\n");
1659 /* These are the permanent mount options (always included) */
1660 switch (ldd->ldd_mount_type) {
1662 case LDD_MT_LDISKFS:
1663 case LDD_MT_LDISKFS2: {
1664 sprintf(always_mountopts, "errors=remount-ro");
1665 if (IS_MDT(ldd) || IS_MGS(ldd))
1666 strscat(always_mountopts, ",iopen_nopriv,user_xattr",
1667 sizeof(always_mountopts));
1668 if ((get_os_version() == 24) && IS_OST(ldd))
1669 strscat(always_mountopts, ",asyncdel",
1670 sizeof(always_mountopts));
1671 /* NB: Files created while extents are enabled cannot be read
1672 if mounted with a kernel that doesn't include the CFS
1675 (ldd->ldd_mount_type == LDD_MT_LDISKFS ||
1676 ldd->ldd_mount_type == LDD_MT_LDISKFS2)) {
1677 strscat(default_mountopts, ",extents,mballoc",
1678 sizeof(default_mountopts));
1683 mop.mo_flags |= MO_IS_LOOP;
1684 sprintf(always_mountopts, "type=ext3,dev=%s",
1690 fprintf(stderr, "unknown fs type %d '%s'\n",
1691 ldd->ldd_mount_type,
1699 /* If user specifies mount opts, don't use defaults,
1700 but always use always_mountopts */
1701 sprintf(ldd->ldd_mount_opts, "%s,%s",
1702 always_mountopts, mountopts);
1705 if (ldd->ldd_mount_opts[0] == 0)
1706 /* use the defaults unless old opts exist */
1709 sprintf(ldd->ldd_mount_opts, "%s%s",
1710 always_mountopts, default_mountopts);
1714 server_make_name(ldd->ldd_flags, ldd->ldd_svindex,
1715 ldd->ldd_fsname, ldd->ldd_svname);
1718 print_ldd("Permanent disk data", ldd);
1721 printf("exiting before disk write.\n");
1725 if (check_mtab_entry(mop.mo_device))
1728 /* Create the loopback file */
1729 if (mop.mo_flags & MO_IS_LOOP) {
1730 ret = access(mop.mo_device, F_OK);
1733 #ifndef TUNEFS /* mkfs.lustre */
1734 /* Reformat the loopback file */
1735 if (ret || (mop.mo_flags & MO_FORCEFORMAT))
1736 ret = loop_format(&mop);
1739 ret = loop_setup(&mop);
1742 fprintf(stderr, "Loop device setup for %s failed: %s\n",
1743 mop.mo_device, strerror(ret));
1748 #ifndef TUNEFS /* mkfs.lustre */
1749 /* Check whether the disk has already been formatted by mkfs.lustre */
1750 if (!(mop.mo_flags & MO_FORCEFORMAT)) {
1751 ret = is_lustre_target(&mop);
1754 fprintf(stderr, "Device %s was previously formatted "
1755 "for lustre. Use --reformat to reformat it, "
1756 "or tunefs.lustre to modify.\n",
1762 /* Format the backing filesystem */
1763 ret = make_lustre_backfs(&mop);
1766 fprintf(stderr, "mkfs failed %d\n", ret);
1771 /* Write our config files */
1772 ret = write_local_files(&mop);
1775 fprintf(stderr, "failed to write local files\n");
1779 #ifndef TUNEFS /* mkfs.lustre */
1781 ret = mkfs_mdt(&mop);
1783 fprintf(stderr, "failed to mkfs_mdt\n");
1792 /* Fix any crazy return values from system() */
1793 if (ret && ((ret & 255) == 0))
1796 verrprint("%s: exiting with %d (%s)\n",
1797 progname, ret, strerror(ret));