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 (c) 2007, 2010, Oracle and/or its affiliates. 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 /* libcfs.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/libcfs.h>
72 #include <linux/fs.h> /* for BLKGETSIZE64 */
74 #include <linux/version.h>
76 #include <lustre_disk.h>
77 #include <lustre_param.h>
78 #include <lnet/lnetctl.h>
79 #include <lustre_ver.h>
80 #include "mount_utils.h"
86 #define MAX_LOOP_DEVICES 16
87 #define L_BLOCK_SIZE 4096
88 #define INDEX_UNASSIGNED 0xFFFF
89 #define MO_IS_LOOP 0x01
90 #define MO_FORCEFORMAT 0x02
92 /* used to describe the options to format the lustre disk, not persistent */
94 struct lustre_disk_data mo_ldd; /* to be written in MOUNT_DATA_FILE */
95 char mo_device[128]; /* disk device name */
96 char mo_mkfsopts[128]; /* options to the backing-store mkfs */
97 char mo_loopdev[128]; /* in case a loop dev is needed */
98 __u64 mo_device_sz; /* in KB */
101 int mo_mgs_failnodes;
106 static int print_only = 0;
107 static int failover = 0;
108 static int upgrade_to_18 = 0;
110 void usage(FILE *out)
112 fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
113 fprintf(out, "usage: %s <target types> [options] <device>\n", progname);
115 "\t<device>:block device or file (e.g /dev/sda or /tmp/ost1)\n"
117 "\t\t--ost: object storage, mutually exclusive with mdt,mgs\n"
118 "\t\t--mdt: metadata storage, mutually exclusive with ost\n"
119 "\t\t--mgs: configuration management service - one per site\n"
120 "\toptions (in order of popularity):\n"
121 "\t\t--mgsnode=<nid>[,<...>] : NID(s) of a remote mgs node\n"
122 "\t\t\trequired for all targets other than the mgs node\n"
123 "\t\t--fsname=<filesystem_name> : default is 'lustre'\n"
124 "\t\t--failnode=<nid>[,<...>] : NID(s) of a failover partner\n"
125 "\t\t--param <key>=<value> : set a permanent parameter\n"
126 "\t\t\te.g. --param sys.timeout=40\n"
127 "\t\t\t --param lov.stripesize=2M\n"
128 "\t\t--index=#N : target index (i.e. ost index within the lov)\n"
129 /* FIXME implement 1.6.x
130 "\t\t--configdev=<altdevice|file>: store configuration info\n"
131 "\t\t\tfor this device on an alternate device\n"
133 "\t\t--comment=<user comment>: arbitrary user string (%d bytes)\n"
134 "\t\t--mountfsoptions=<opts> : permanent mount options\n"
135 "\t\t--network=<net>[,<...>] : network(s) to restrict this ost/mdt to\n"
137 "\t\t--backfstype=<fstype> : backing fs type (ext3, ldiskfs)\n"
138 "\t\t--device-size=#N(KB) : device size for loop devices\n"
139 "\t\t--mkfsoptions=<opts> : format options\n"
140 "\t\t--reformat: overwrite an existing disk\n"
141 "\t\t--stripe-count-hint=#N : used for optimizing MDT inode size\n"
142 "\t\t--iam-dir: make use of IAM directory format on backfs, incompatible with ext3.\n"
144 "\t\t--erase-params : erase all old parameter settings\n"
145 "\t\t--nomgs: turn off MGS service on this MDT\n"
146 "\t\t--writeconf: erase all config logs for this fs.\n"
148 "\t\t--dryrun: just report what we would do; "
149 "don't write to disk\n"
150 "\t\t--verbose : e.g. show mkfs progress\n"
152 (int)sizeof(((struct lustre_disk_data *)0)->ldd_userdata));
156 #define vprint if (verbose > 0) printf
157 #define verrprint if (verbose >= 0) printf
159 /*================ utility functions =====================*/
161 char *strscat(char *dst, char *src, int buflen) {
163 if (strlen(dst) + strlen(src) >= buflen) {
164 fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
165 "\n", buflen, dst, src);
168 return strcat(dst, src);
172 char *strscpy(char *dst, char *src, int buflen) {
174 return strscat(dst, src, buflen);
178 dev_major (unsigned long long int __dev)
180 return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
184 dev_minor (unsigned long long int __dev)
186 return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
191 static int version = 0;
195 char release[4] = "";
197 fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
199 fprintf(stderr, "%s: Warning: Can't resolve kernel "
200 "version, assuming 2.6\n", progname);
202 if (read(fd, release, 4) < 0) {
203 fprintf(stderr, "reading from /proc/sys/kernel"
204 "/osrelease: %s\n", strerror(errno));
210 if (strncmp(release, "2.4.", 4) == 0)
218 static int check_mtab_entry(char *spec)
223 fp = setmntent(MOUNTED, "r");
227 while ((mnt = getmntent(fp)) != NULL) {
228 if (strcmp(mnt->mnt_fsname, spec) == 0) {
230 fprintf(stderr, "%s: according to %s %s is "
231 "already mounted on %s\n",
232 progname, MOUNTED, spec, mnt->mnt_dir);
241 /*============ disk dev functions ===================*/
243 /* Setup a file in the first unused loop_device */
244 int loop_setup(struct mkfs_opts *mop)
250 /* Figure out the loop device names */
251 if (!access("/dev/loop0", F_OK | R_OK)) {
252 strcpy(loop_base, "/dev/loop\0");
253 } else if (!access("/dev/loop/0", F_OK | R_OK)) {
254 strcpy(loop_base, "/dev/loop/\0");
256 fprintf(stderr, "%s: can't access loop devices\n", progname);
260 /* Find unused loop device */
261 for (i = 0; i < MAX_LOOP_DEVICES; i++) {
263 int cmdsz = sizeof(cmd);
265 sprintf(l_device, "%s%d", loop_base, i);
266 if (access(l_device, F_OK | R_OK))
268 snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
271 /* losetup gets 1 (ret=256) for non-set-up device */
273 /* Set up a loopback device to our file */
274 snprintf(cmd, cmdsz, "losetup %s %s", l_device,
276 ret = run_command(cmd, cmdsz);
278 /* someone else picked up this loop device
282 fprintf(stderr, "%s: error %d on losetup: %s\n",
283 progname, ret, strerror(ret));
286 strscpy(mop->mo_loopdev, l_device,
287 sizeof(mop->mo_loopdev));
292 fprintf(stderr, "%s: out of loop devices!\n", progname);
296 int loop_cleanup(struct mkfs_opts *mop)
300 if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
301 sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
302 ret = run_command(cmd, sizeof(cmd));
307 /* Determine if a device is a block device (as opposed to a file) */
308 int is_block(char* devname)
313 ret = access(devname, F_OK);
316 ret = stat(devname, &st);
318 fprintf(stderr, "%s: cannot stat %s\n", progname, devname);
321 return S_ISBLK(st.st_mode);
324 __u64 get_device_size(char* device)
329 fd = open(device, O_RDONLY);
331 fprintf(stderr, "%s: cannot open %s: %s\n",
332 progname, device, strerror(errno));
337 /* size in bytes. bz5831 */
338 ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
343 ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
344 size = (__u64)lsize * 512;
349 fprintf(stderr, "%s: size ioctl failed: %s\n",
350 progname, strerror(errno));
354 vprint("device size = "LPU64"MB\n", size >> 20);
355 /* return value in KB */
359 int loop_format(struct mkfs_opts *mop)
363 if (mop->mo_device_sz == 0) {
365 fprintf(stderr, "loop device requires a --device-size= "
370 ret = creat(mop->mo_device, S_IRUSR|S_IWUSR);
373 fprintf(stderr, "%s: Unable to create backing store: %d\n",
379 ret = truncate(mop->mo_device, mop->mo_device_sz * 1024);
382 fprintf(stderr, "%s: Unable to truncate backing store: %d\n",
389 /* Display the need for the latest e2fsprogs to be installed. make_backfs
390 * indicates if the caller is make_lustre_backfs() or not. */
391 static void disp_old_e2fsprogs_msg(const char *feature, int make_backfs)
393 static int msg_displayed;
396 fprintf(stderr, "WARNING: %s does not support %s "
397 "feature.\n\n", E2FSPROGS, feature);
403 fprintf(stderr, "WARNING: The %s package currently installed on "
404 "your system does not support \"%s\" feature.\n",
406 #if !(HAVE_LDISKFSPROGS)
407 fprintf(stderr, "Please install the latest version of e2fsprogs from\n"
408 "http://downloads.lustre.org/public/tools/e2fsprogs/\n"
409 "to enable this feature.\n");
412 fprintf(stderr, "Feature will not be enabled until %s"
413 "is updated and '%s -O %s %%{device}' "
414 "is run.\n\n", E2FSPROGS, TUNE2FS, feature);
417 /* Check whether the file exists in the device */
418 static int file_in_dev(char *file_name, char *dev_name)
421 char debugfs_cmd[256];
422 unsigned int inode_num;
425 /* Construct debugfs command line. */
426 snprintf(debugfs_cmd, sizeof(debugfs_cmd),
427 "%s -c -R 'stat %s' '%s' 2>&1 | egrep '(Inode|unsupported)'",
428 DEBUGFS, file_name, dev_name);
430 fp = popen(debugfs_cmd, "r");
432 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
436 if (fscanf(fp, "Inode: %u", &inode_num) == 1) { /* exist */
440 i = fread(debugfs_cmd, 1, sizeof(debugfs_cmd), fp);
443 fprintf(stderr, "%s", debugfs_cmd);
444 if (strstr(debugfs_cmd, "unsupported feature")) {
445 disp_old_e2fsprogs_msg("an unknown", 0);
454 /* Check whether the device has already been used with lustre */
455 static int is_lustre_target(struct mkfs_opts *mop)
459 vprint("checking for existing Lustre data: ");
461 if ((rc = file_in_dev(MOUNT_DATA_FILE, mop->mo_device))) {
463 (rc == 1) ? MOUNT_DATA_FILE : "extents");
464 /* in the -1 case, 'extents' means this really IS a lustre
469 if ((rc = file_in_dev(LAST_RCVD, mop->mo_device))) {
470 vprint("found %s\n", LAST_RCVD);
474 vprint("not found\n");
475 return 0; /* The device is not a lustre target. */
478 /* Check if a certain feature is supported by e2fsprogs.
479 * Firstly we try to use "debugfs supported_features" command to check if
480 * the feature is supported. If this fails we try to set this feature with
481 * mke2fs to check for its support. */
482 static int is_e2fsprogs_feature_supp(const char *feature)
486 char imgname[] = "/tmp/test-img-XXXXXX";
490 snprintf(cmd, sizeof(cmd), "%s -c -R \"supported_features %s\" 2>&1",
493 /* Using popen() instead of run_command() since debugfs does not return
494 * proper error code if command is not supported */
495 fp = popen(cmd, "r");
497 fprintf(stderr, "%s: %s\n", progname, strerror(errno));
500 ret = fread(cmd, 1, sizeof(cmd), fp);
502 if (strstr(cmd, feature) && !(strstr(cmd, "Unknown")))
506 if ((fd = mkstemp(imgname)) < 0)
509 snprintf(cmd, sizeof(cmd), "%s -F -O %s %s 100 >/dev/null 2>&1",
510 MKE2FS, feature, imgname);
511 /* run_command() displays the output of mke2fs when it fails for
512 * some feature, so use system() directly */
520 static void disp_old_kernel_msg(char *feature)
522 fprintf(stderr, "WARNING: ldiskfs filesystem does not support \"%s\" "
523 "feature.\n\n", feature);
526 static void enable_default_backfs_features(struct mkfs_opts *mop)
529 int maj_high, maj_low, min;
532 if (IS_MDT(&mop->mo_ldd))
533 strscat(mop->mo_mkfsopts, " -O dir_index,extents,dirdata",
534 sizeof(mop->mo_mkfsopts));
536 strscat(mop->mo_mkfsopts, " -O dir_index,extents",
537 sizeof(mop->mo_mkfsopts));
540 /* Upstream e2fsprogs called our uninit_groups feature uninit_bg,
541 * check for both of them when testing e2fsprogs features. */
542 if (is_e2fsprogs_feature_supp("uninit_groups") == 0)
543 strscat(mop->mo_mkfsopts, ",uninit_groups",
544 sizeof(mop->mo_mkfsopts));
545 else if (is_e2fsprogs_feature_supp("uninit_bg") == 0)
546 strscat(mop->mo_mkfsopts, ",uninit_bg",
547 sizeof(mop->mo_mkfsopts));
549 disp_old_e2fsprogs_msg("uninit_bg", 1);
555 sscanf(uts.release, "%d.%d.%d", &maj_high, &maj_low, &min);
556 printf("%d %d %d\n", maj_high, maj_low, min);
558 /* Multiple mount protection is enabled only if failover node is
559 * specified and if kernel version is higher than 2.6.9 */
561 if (KERNEL_VERSION(maj_high, maj_low, min) >=
562 KERNEL_VERSION(2,6,9)) {
563 if (is_e2fsprogs_feature_supp("mmp") == 0)
564 strscat(mop->mo_mkfsopts, ",mmp",
565 sizeof(mop->mo_mkfsopts));
567 disp_old_e2fsprogs_msg("mmp", 1);
569 disp_old_kernel_msg("mmp");
573 /* Build fs according to type */
574 int make_lustre_backfs(struct mkfs_opts *mop)
576 __u64 device_sz = mop->mo_device_sz, block_count = 0;
577 char mkfs_cmd[PATH_MAX];
582 if (!(mop->mo_flags & MO_IS_LOOP)) {
583 mop->mo_device_sz = get_device_size(mop->mo_device);
585 if (mop->mo_device_sz == 0)
588 /* Compare to real size */
589 if (device_sz == 0 || device_sz > mop->mo_device_sz)
590 device_sz = mop->mo_device_sz;
592 mop->mo_device_sz = device_sz;
595 if (mop->mo_device_sz != 0) {
596 if (mop->mo_device_sz < 8096){
597 fprintf(stderr, "%s: size of filesystem must be larger "
598 "than 8MB, but is set to %lldKB\n",
599 progname, (long long)mop->mo_device_sz);
602 block_count = mop->mo_device_sz / (L_BLOCK_SIZE >> 10);
605 if ((mop->mo_ldd.ldd_mount_type == LDD_MT_EXT3) ||
606 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS) ||
607 (mop->mo_ldd.ldd_mount_type == LDD_MT_LDISKFS2)) {
608 /* Journal size in MB */
609 if (strstr(mop->mo_mkfsopts, "-J") == NULL) {
610 /* Choose our own default journal size */
611 long journal_sz = 0, max_sz;
612 if (device_sz > 1024 * 1024) /* 1GB */
613 journal_sz = (device_sz / 102400) * 4;
614 /* cap journal size at 1GB */
615 if (journal_sz > 1024L)
618 max_sz = (102400 * L_BLOCK_SIZE) >> 20; /* 400MB */
619 if (journal_sz > max_sz)
622 sprintf(buf, " -J size=%ld", journal_sz);
623 strscat(mop->mo_mkfsopts, buf,
624 sizeof(mop->mo_mkfsopts));
628 /* Bytes_per_inode: disk size / num inodes */
629 if (strstr(mop->mo_mkfsopts, "-i") == NULL) {
630 long bytes_per_inode = 0;
632 if (IS_MDT(&mop->mo_ldd))
633 bytes_per_inode = 4096;
635 /* Allocate fewer inodes on large OST devices. Most
636 filesystems can be much more aggressive than even
638 if ((IS_OST(&mop->mo_ldd) && (device_sz > 100000000)))
639 bytes_per_inode = 16384; /* > 100 Gb device */
642 if (bytes_per_inode > 0) {
643 sprintf(buf, " -i %ld", bytes_per_inode);
644 strscat(mop->mo_mkfsopts, buf,
645 sizeof(mop->mo_mkfsopts));
649 /* Inode size (for extended attributes). The LOV EA size is
650 * 32 (EA hdr) + 32 (lov_mds_md) + stripes * 24 (lov_ost_data),
651 * and we want some margin above that for ACLs, other EAs... */
652 if (strstr(mop->mo_mkfsopts, "-I") == NULL) {
654 if (IS_MDT(&mop->mo_ldd)) {
655 if (mop->mo_stripe_count > 72)
656 inode_size = 512; /* bz 7241 */
657 /* cray stripes across all osts (>60) */
658 else if (mop->mo_stripe_count > 32)
660 else if (mop->mo_stripe_count > 10)
664 } else if (IS_OST(&mop->mo_ldd)) {
665 /* now as we store fids in EA on OST we need
666 to make inode bigger */
670 if (inode_size > 0) {
671 sprintf(buf, " -I %ld", inode_size);
672 strscat(mop->mo_mkfsopts, buf,
673 sizeof(mop->mo_mkfsopts));
678 strscat(mop->mo_mkfsopts, " -q",
679 sizeof(mop->mo_mkfsopts));
682 if (strstr(mop->mo_mkfsopts, "-O") == NULL)
683 enable_default_backfs_features(mop);
685 /* Allow reformat of full devices (as opposed to
686 partitions.) We already checked for mounted dev. */
687 strscat(mop->mo_mkfsopts, " -F", sizeof(mop->mo_mkfsopts));
689 snprintf(mkfs_cmd, sizeof(mkfs_cmd),
690 "%s -j -b %d -L %s ", MKE2FS, L_BLOCK_SIZE,
691 mop->mo_ldd.ldd_svname);
692 } else if (mop->mo_ldd.ldd_mount_type == LDD_MT_REISERFS) {
693 long journal_sz = 0; /* FIXME default journal size */
694 if (journal_sz > 0) {
695 sprintf(buf, " --journal_size %ld", journal_sz);
696 strscat(mop->mo_mkfsopts, buf,
697 sizeof(mop->mo_mkfsopts));
699 snprintf(mkfs_cmd, sizeof(mkfs_cmd), "mkreiserfs -ff ");
701 fprintf(stderr,"%s: unsupported fs type: %d (%s)\n",
702 progname, mop->mo_ldd.ldd_mount_type,
703 MT_STR(&mop->mo_ldd));
707 /* For loop device format the dev, not the filename */
708 dev = mop->mo_device;
709 if (mop->mo_flags & MO_IS_LOOP)
710 dev = mop->mo_loopdev;
712 vprint("formatting backing filesystem %s on %s\n",
713 MT_STR(&mop->mo_ldd), dev);
714 vprint("\ttarget name %s\n", mop->mo_ldd.ldd_svname);
715 vprint("\t4k blocks "LPU64"\n", block_count);
716 vprint("\toptions %s\n", mop->mo_mkfsopts);
718 /* mkfs_cmd's trailing space is important! */
719 strscat(mkfs_cmd, mop->mo_mkfsopts, sizeof(mkfs_cmd));
720 strscat(mkfs_cmd, " ", sizeof(mkfs_cmd));
721 strscat(mkfs_cmd, dev, sizeof(mkfs_cmd));
722 if (block_count != 0) {
723 sprintf(buf, " "LPU64, block_count);
724 strscat(mkfs_cmd, buf, sizeof(mkfs_cmd));
727 vprint("mkfs_cmd = %s\n", mkfs_cmd);
728 ret = run_command(mkfs_cmd, sizeof(mkfs_cmd));
731 fprintf(stderr, "Unable to build fs %s (%d)\n", dev, ret);
736 /* ==================== Lustre config functions =============*/
738 void print_ldd(char *str, struct lustre_disk_data *ldd)
740 printf("\n %s:\n", str);
741 printf("Target: %s\n", ldd->ldd_svname);
742 if (ldd->ldd_svindex == INDEX_UNASSIGNED)
743 printf("Index: unassigned\n");
745 printf("Index: %d\n", ldd->ldd_svindex);
746 if (ldd->ldd_uuid[0])
747 printf("UUID: %s\n", (char *)ldd->ldd_uuid);
748 printf("Lustre FS: %s\n", ldd->ldd_fsname);
749 printf("Mount type: %s\n", MT_STR(ldd));
750 printf("Flags: %#x\n", ldd->ldd_flags);
751 printf(" (%s%s%s%s%s%s%s%s%s)\n",
752 IS_MDT(ldd) ? "MDT ":"",
753 IS_OST(ldd) ? "OST ":"",
754 IS_MGS(ldd) ? "MGS ":"",
755 ldd->ldd_flags & LDD_F_NEED_INDEX ? "needs_index ":"",
756 ldd->ldd_flags & LDD_F_VIRGIN ? "first_time ":"",
757 ldd->ldd_flags & LDD_F_UPDATE ? "update ":"",
758 ldd->ldd_flags & LDD_F_WRITECONF ? "writeconf ":"",
759 ldd->ldd_flags & LDD_F_IAM_DIR ? "IAM_dir_format ":"",
760 ldd->ldd_flags & LDD_F_UPGRADE14 ? "upgrade1.4 ":"");
761 printf("Persistent mount opts: %s\n", ldd->ldd_mount_opts);
762 printf("Parameters:%s\n", ldd->ldd_params);
763 if (ldd->ldd_userdata[0])
764 printf("Comment: %s\n", ldd->ldd_userdata);
768 static int touch_file(char *filename)
772 if (filename == NULL) {
776 fd = open(filename, O_CREAT | O_TRUNC, 0600);
785 /* keep it less than LL_FID_NAMELEN */
786 #define DUMMY_FILE_NAME_LEN 25
787 #define EXT3_DIRENT_SIZE DUMMY_FILE_NAME_LEN
789 /* Need to add these many entries to this directory to make HTREE dir. */
790 #define MIN_ENTRIES_REQ_FOR_HTREE ((L_BLOCK_SIZE / EXT3_DIRENT_SIZE))
792 static int add_dummy_files(char *dir)
794 char fpname[PATH_MAX];
798 for (i = 0; i < MIN_ENTRIES_REQ_FOR_HTREE; i++) {
799 snprintf(fpname, PATH_MAX, "%s/%0*d", dir,
800 DUMMY_FILE_NAME_LEN, i);
802 rc = touch_file(fpname);
803 if (rc && rc != -EEXIST) {
805 "%s: Can't create dummy file %s: %s\n",
806 progname, fpname , strerror(errno));
813 static int __l_mkdir(char * filepnm, int mode , struct mkfs_opts *mop)
817 ret = mkdir(filepnm, mode);
818 if (ret && ret != -EEXIST)
821 /* IAM mode supports ext3 directories of HTREE type only. So add dummy
822 * entries to new directory to create htree type of container for
824 if (mop->mo_ldd.ldd_flags & LDD_F_IAM_DIR)
825 return add_dummy_files(filepnm);
829 /* Write the server config files */
830 int write_local_files(struct mkfs_opts *mop)
832 char mntpt[] = "/tmp/mntXXXXXX";
839 /* Mount this device temporarily in order to write these files */
840 if (!mkdtemp(mntpt)) {
841 fprintf(stderr, "%s: Can't create temp mount point %s: %s\n",
842 progname, mntpt, strerror(errno));
846 dev = mop->mo_device;
847 if (mop->mo_flags & MO_IS_LOOP)
848 dev = mop->mo_loopdev;
850 ret = mount(dev, mntpt, MT_STR(&mop->mo_ldd), 0,
851 mop->mo_ldd.ldd_mount_opts);
853 fprintf(stderr, "%s: Unable to mount %s: %s\n",
854 progname, dev, strerror(errno));
856 if (errno == ENODEV) {
857 fprintf(stderr, "Is the %s module available?\n",
858 MT_STR(&mop->mo_ldd));
863 /* Set up initial directories */
864 sprintf(filepnm, "%s/%s", mntpt, MOUNT_CONFIGS_DIR);
865 ret = __l_mkdir(filepnm, 0777, mop);
866 if ((ret != 0) && (errno != EEXIST)) {
867 fprintf(stderr, "%s: Can't make configs dir %s (%s)\n",
868 progname, filepnm, strerror(errno));
870 } else if (errno == EEXIST) {
874 /* Save the persistent mount data into a file. Lustre must pre-read
875 this file to get the real mount options. */
876 vprint("Writing %s\n", MOUNT_DATA_FILE);
877 sprintf(filepnm, "%s/%s", mntpt, MOUNT_DATA_FILE);
878 filep = fopen(filepnm, "w");
880 fprintf(stderr, "%s: Unable to create %s file: %s\n",
881 progname, filepnm, strerror(errno));
884 num = fwrite(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
885 if (num < 1 && ferror(filep)) {
886 fprintf(stderr, "%s: Unable to write to file (%s): %s\n",
887 progname, filepnm, strerror(errno));
893 /* Check for upgrade */
894 if ((mop->mo_ldd.ldd_flags & (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS))
895 == (LDD_F_UPGRADE14 | LDD_F_SV_TYPE_MGS)) {
898 int cmdsz = sizeof(cmd);
899 vprint("Copying old logs\n");
901 /* Copy the old client log to fsname-client */
902 sprintf(filepnm, "%s/%s/%s-client",
903 mntpt, MOUNT_CONFIGS_DIR, mop->mo_ldd.ldd_fsname);
904 snprintf(cmd, cmdsz, "cp %s/%s/client %s", mntpt, MDT_LOGS_DIR,
906 ret = run_command(cmd, cmdsz);
908 fprintf(stderr, "%s: Can't copy 1.4 config %s/client "
909 "(%d)\n", progname, MDT_LOGS_DIR, ret);
910 fprintf(stderr, "mount -t ldiskfs %s somewhere, "
911 "find the client log for fs %s and "
912 "copy it manually into %s/%s-client, "
915 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
916 mop->mo_ldd.ldd_fsname);
920 /* We need to use the old mdt log because otherwise mdt won't
921 have complete lov if old clients connect before all
923 /* Copy the old mdt log to fsname-MDT0000 (get old
924 name from mdt_UUID) */
926 strscpy(filepnm, (char *)mop->mo_ldd.ldd_uuid, sizeof(filepnm));
927 term = strstr(filepnm, "_UUID");
930 snprintf(cmd, cmdsz, "cp %s/%s/%s %s/%s/%s",
931 mntpt, MDT_LOGS_DIR, filepnm,
932 mntpt, MOUNT_CONFIGS_DIR,
933 mop->mo_ldd.ldd_svname);
934 ret = run_command(cmd, cmdsz);
937 fprintf(stderr, "%s: Can't copy 1.4 config %s/%s "
938 "(%d)\n", progname, MDT_LOGS_DIR, filepnm, ret);
939 fprintf(stderr, "mount -t ext3 %s somewhere, "
940 "find the MDT log for fs %s and "
941 "copy it manually into %s/%s, "
944 mop->mo_ldd.ldd_fsname, MOUNT_CONFIGS_DIR,
945 mop->mo_ldd.ldd_svname);
959 int read_local_files(struct mkfs_opts *mop)
961 char tmpdir[] = "/tmp/dirXXXXXX";
967 int cmdsz = sizeof(cmd);
969 /* Make a temporary directory to hold Lustre data files. */
970 if (!mkdtemp(tmpdir)) {
971 fprintf(stderr, "%s: Can't create temporary directory %s: %s\n",
972 progname, tmpdir, strerror(errno));
976 dev = mop->mo_device;
978 /* TODO: it's worth observing the get_mountdata() function that is
979 in mount_utils.c for getting the mountdata out of the
982 /* Construct debugfs command line. */
983 snprintf(cmd, cmdsz, "%s -c -R 'dump /%s %s/mountdata' '%s'",
984 DEBUGFS, MOUNT_DATA_FILE, tmpdir, dev);
986 ret = run_command(cmd, cmdsz);
988 verrprint("%s: Unable to dump %s dir (%d)\n",
989 progname, MOUNT_CONFIGS_DIR, ret);
991 sprintf(filepnm, "%s/mountdata", tmpdir);
992 filep = fopen(filepnm, "r");
995 vprint("Reading %s\n", MOUNT_DATA_FILE);
996 num_read = fread(&mop->mo_ldd, sizeof(mop->mo_ldd), 1, filep);
997 if (num_read < 1 && ferror(filep)) {
998 fprintf(stderr, "%s: Unable to read from file (%s): %s\n",
999 progname, filepnm, strerror(errno));
1004 /* Try to read pre-1.6 config from last_rcvd */
1005 struct lr_server_data lsd;
1006 verrprint("%s: Unable to read %d.%d config %s.\n",
1007 progname, LUSTRE_MAJOR, LUSTRE_MINOR, filepnm);
1009 verrprint("Trying 1.4 config from last_rcvd\n");
1010 sprintf(filepnm, "%s/%s", tmpdir, LAST_RCVD);
1012 /* Construct debugfs command line. */
1013 snprintf(cmd, cmdsz, "%s -c -R 'dump /%s %s' %s",
1014 DEBUGFS, LAST_RCVD, filepnm, dev);
1016 ret = run_command(cmd, cmdsz);
1018 fprintf(stderr, "%s: Unable to dump %s file (%d)\n",
1019 progname, LAST_RCVD, ret);
1023 filep = fopen(filepnm, "r");
1025 fprintf(stderr, "%s: Unable to open %s: %s\n",
1026 progname, filepnm, strerror(errno));
1028 verrprint("Contents of %s:\n", tmpdir);
1030 snprintf(cmd, cmdsz, "ls -l %s/", tmpdir);
1031 run_command(cmd, cmdsz);
1032 verrprint("Contents of disk:\n");
1033 snprintf(cmd, cmdsz, "%s -c -R 'ls -l /' %s",
1035 run_command(cmd, cmdsz);
1039 vprint("Reading %s\n", LAST_RCVD);
1040 ret = fread(&lsd, 1, sizeof(lsd), filep);
1041 if (ret < sizeof(lsd)) {
1042 fprintf(stderr, "%s: Short read (%d of %d)\n",
1043 progname, ret, (int)sizeof(lsd));
1044 ret = ferror(filep);
1048 vprint("Feature compat=%x, incompat=%x\n",
1049 lsd.lsd_feature_compat, lsd.lsd_feature_incompat);
1051 if ((lsd.lsd_feature_compat & OBD_COMPAT_OST) ||
1052 (lsd.lsd_feature_incompat & OBD_INCOMPAT_OST)) {
1053 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
1054 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
1055 } else if ((lsd.lsd_feature_compat & OBD_COMPAT_MDT) ||
1056 (lsd.lsd_feature_incompat & OBD_INCOMPAT_MDT)) {
1057 /* We must co-locate so mgs can see old logs.
1058 If user doesn't want this, they can copy the old
1059 logs manually and re-tunefs. */
1060 mop->mo_ldd.ldd_flags =
1061 LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_MGS;
1062 mop->mo_ldd.ldd_svindex = lsd.lsd_mdt_index;
1064 /* If neither is set, we're pre-1.4.6, make a guess. */
1065 /* Construct debugfs command line. */
1066 snprintf(cmd, cmdsz, "%s -c -R 'rdump /%s %s' %s",
1067 DEBUGFS, MDT_LOGS_DIR, tmpdir, dev);
1068 run_command(cmd, cmdsz);
1070 sprintf(filepnm, "%s/%s", tmpdir, MDT_LOGS_DIR);
1071 if (lsd.lsd_ost_index > 0) {
1072 mop->mo_ldd.ldd_flags = LDD_F_SV_TYPE_OST;
1073 mop->mo_ldd.ldd_svindex = lsd.lsd_ost_index;
1075 /* If there's a LOGS dir, it's an MDT */
1076 if ((ret = access(filepnm, F_OK)) == 0) {
1077 mop->mo_ldd.ldd_flags =
1080 /* Old MDT's are always index 0
1082 mop->mo_ldd.ldd_svindex = 0;
1084 /* The index may not be correct */
1085 mop->mo_ldd.ldd_flags =
1086 LDD_F_SV_TYPE_OST | LDD_F_NEED_INDEX;
1087 verrprint("OST with unknown index\n");
1093 memcpy(mop->mo_ldd.ldd_uuid, lsd.lsd_uuid,
1094 sizeof(mop->mo_ldd.ldd_uuid));
1095 mop->mo_ldd.ldd_flags |= LDD_F_UPGRADE14;
1097 /* end COMPAT_146 */
1102 snprintf(cmd, cmdsz, "rm -rf %s", tmpdir);
1103 run_command(cmd, cmdsz);
1105 verrprint("Failed to read old data (%d)\n", ret);
1110 void set_defaults(struct mkfs_opts *mop)
1112 mop->mo_ldd.ldd_magic = LDD_MAGIC;
1113 mop->mo_ldd.ldd_config_ver = 1;
1114 mop->mo_ldd.ldd_flags = LDD_F_NEED_INDEX | LDD_F_UPDATE | LDD_F_VIRGIN;
1115 mop->mo_mgs_failnodes = 0;
1116 strcpy(mop->mo_ldd.ldd_fsname, "lustre");
1117 if (get_os_version() == 24)
1118 mop->mo_ldd.ldd_mount_type = LDD_MT_EXT3;
1120 mop->mo_ldd.ldd_mount_type = LDD_MT_LDISKFS;
1122 mop->mo_ldd.ldd_svindex = INDEX_UNASSIGNED;
1123 mop->mo_stripe_count = 1;
1126 static inline void badopt(const char *opt, char *type)
1128 fprintf(stderr, "%s: '--%s' only valid for %s\n",
1129 progname, opt, type);
1133 static int add_param(char *buf, char *key, char *val)
1135 int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
1136 int start = strlen(buf);
1140 keylen = strlen(key);
1141 if (start + 1 + keylen + strlen(val) >= end) {
1142 fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
1143 progname, buf, key ? key : "", val);
1147 sprintf(buf + start, " %s%s", key ? key : "", val);
1151 /* from mount_lustre */
1152 /* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
1153 #define MAXNIDSTR 1024
1154 static char *convert_hostnames(char *s1)
1156 char *converted, *s2 = 0, *c, *end, sep;
1157 int left = MAXNIDSTR;
1160 converted = malloc(left);
1161 if (converted == NULL) {
1165 end = s1 + strlen(s1);
1167 while ((left > 0) && (s1 < end)) {
1168 s2 = strpbrk(s1, ",:");
1173 nid = libcfs_str2nid(s1);
1175 if (nid == LNET_NID_ANY) {
1176 fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
1180 if (strncmp(libcfs_nid2str(nid), "127.0.0.1",
1181 strlen("127.0.0.1")) == 0) {
1182 fprintf(stderr, "%s: The NID '%s' resolves to the "
1183 "loopback address '%s'. Lustre requires a "
1184 "non-loopback address.\n",
1185 progname, s1, libcfs_nid2str(nid));
1190 c += snprintf(c, left, "%s%c", libcfs_nid2str(nid), sep);
1191 left = converted + MAXNIDSTR - c;
1197 int parse_opts(int argc, char *const argv[], struct mkfs_opts *mop,
1200 static struct option long_opt[] = {
1201 {"iam-dir", 0, 0, 'a'},
1202 {"backfstype", 1, 0, 'b'},
1203 {"stripe-count-hint", 1, 0, 'c'},
1204 {"comment", 1, 0, 'u'},
1205 {"configdev", 1, 0, 'C'},
1206 {"device-size", 1, 0, 'd'},
1207 {"dryrun", 0, 0, 'n'},
1208 {"erase-params", 0, 0, 'e'},
1209 {"failnode", 1, 0, 'f'},
1210 {"failover", 1, 0, 'f'},
1212 {"help", 0, 0, 'h'},
1213 {"index", 1, 0, 'i'},
1214 {"mkfsoptions", 1, 0, 'k'},
1215 {"mgsnode", 1, 0, 'm'},
1216 {"mgsnid", 1, 0, 'm'},
1218 {"fsname",1, 0, 'L'},
1219 {"noformat", 0, 0, 'n'},
1220 {"nomgs", 0, 0, 'N'},
1221 {"mountfsoptions", 1, 0, 'o'},
1223 {"param", 1, 0, 'p'},
1224 {"print", 0, 0, 'n'},
1225 {"quiet", 0, 0, 'q'},
1226 {"reformat", 0, 0, 'r'},
1227 {"verbose", 0, 0, 'v'},
1228 {"writeconf", 0, 0, 'w'},
1229 {"upgrade_to_18", 0, 0, 'U'},
1230 {"network", 1, 0, 't'},
1233 char *optstring = "b:c:C:d:ef:Ghi:k:L:m:MnNo:Op:Pqru:vw";
1237 while ((opt = getopt_long(argc, argv, optstring, long_opt, &longidx)) !=
1241 if (IS_MDT(&mop->mo_ldd))
1242 mop->mo_ldd.ldd_flags |= LDD_F_IAM_DIR;
1247 while (i < LDD_MT_LAST) {
1248 if (strcmp(optarg, mt_str(i)) == 0) {
1249 mop->mo_ldd.ldd_mount_type = i;
1257 if (IS_MDT(&mop->mo_ldd)) {
1258 int stripe_count = atol(optarg);
1259 if (stripe_count <= 0) {
1260 fprintf(stderr, "%s: bad stripe count "
1261 "%d\n", progname, stripe_count);
1264 mop->mo_stripe_count = stripe_count;
1266 badopt(long_opt[longidx].name, "MDT");
1270 case 'C': /* Configdev */
1272 printf("Configdev not implemented\n");
1275 mop->mo_device_sz = atol(optarg);
1278 mop->mo_ldd.ldd_params[0] = '\0';
1279 /* Must update the mgs logs */
1280 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1283 char *nids = convert_hostnames(optarg);
1286 rc = add_param(mop->mo_ldd.ldd_params, PARAM_FAILNODE,
1291 /* Must update the mgs logs */
1292 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1297 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MGS;
1303 if (!(mop->mo_ldd.ldd_flags &
1304 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1305 LDD_F_WRITECONF))) {
1306 fprintf(stderr, "%s: cannot change the index of"
1307 " a registered target\n", progname);
1310 if (IS_MDT(&mop->mo_ldd) || IS_OST(&mop->mo_ldd)) {
1311 mop->mo_ldd.ldd_svindex = atol(optarg);
1312 mop->mo_ldd.ldd_flags &= ~LDD_F_NEED_INDEX;
1314 badopt(long_opt[longidx].name, "MDT,OST");
1319 strscpy(mop->mo_mkfsopts, optarg,
1320 sizeof(mop->mo_mkfsopts));
1324 if (!(mop->mo_flags & MO_FORCEFORMAT) &&
1325 (!(mop->mo_ldd.ldd_flags &
1326 (LDD_F_UPGRADE14 | LDD_F_VIRGIN |
1327 LDD_F_WRITECONF)))) {
1328 fprintf(stderr, "%s: cannot change the name of"
1329 " a registered target\n", progname);
1332 if ((strlen(optarg) < 1) || (strlen(optarg) > 8)) {
1333 fprintf(stderr, "%s: filesystem name must be "
1334 "1-8 chars\n", progname);
1337 if ((tmp = strpbrk(optarg, "/:"))) {
1338 fprintf(stderr, "%s: char '%c' not allowed in "
1339 "filesystem name\n", progname, *tmp);
1342 strscpy(mop->mo_ldd.ldd_fsname, optarg,
1343 sizeof(mop->mo_ldd.ldd_fsname));
1347 char *nids = convert_hostnames(optarg);
1350 rc = add_param(mop->mo_ldd.ldd_params, PARAM_MGSNODE,
1355 mop->mo_mgs_failnodes++;
1359 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_MDT;
1365 mop->mo_ldd.ldd_flags &= ~LDD_F_SV_TYPE_MGS;
1368 *mountopts = optarg;
1371 mop->mo_ldd.ldd_flags |= LDD_F_SV_TYPE_OST;
1374 rc = add_param(mop->mo_ldd.ldd_params, NULL, optarg);
1377 /* Must update the mgs logs */
1378 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1384 mop->mo_flags |= MO_FORCEFORMAT;
1387 if (!IS_MDT(&mop->mo_ldd) && !IS_OST(&mop->mo_ldd)) {
1388 badopt(long_opt[longidx].name, "MDT,OST");
1395 rc = add_param(mop->mo_ldd.ldd_params,
1396 PARAM_NETWORK, optarg);
1399 /* Must update the mgs logs */
1400 mop->mo_ldd.ldd_flags |= LDD_F_UPDATE;
1403 strscpy(mop->mo_ldd.ldd_userdata, optarg,
1404 sizeof(mop->mo_ldd.ldd_userdata));
1410 mop->mo_ldd.ldd_flags |= LDD_F_WRITECONF;
1418 fprintf(stderr, "Unknown option '%c'\n", opt);
1424 /* Last arg is device */
1425 if (optind != argc - 1) {
1427 fprintf(stderr, "Bad argument: %s\n", argv[optind]);
1431 /* single argument: <device> */
1438 /* Search for opt in mntlist, returning true if found.
1440 static int in_mntlist(char *opt, char *mntlist)
1442 char *ml, *mlp, *item, *ctx = NULL;
1444 if (!(ml = strdup(mntlist))) {
1445 fprintf(stderr, "%s: out of memory\n", progname);
1449 while ((item = strtok_r(mlp, ",", &ctx))) {
1450 if (!strcmp(opt, item))
1455 return (item != NULL);
1458 /* Issue a message on stderr for every item in wanted_mountopts that is not
1459 * present in mountopts. The justwarn boolean toggles between error and
1460 * warning message. Return an error count.
1462 static int check_mountfsoptions(char *mountopts, char *wanted_mountopts,
1465 char *ml, *mlp, *item, *ctx = NULL;
1468 if (!(ml = strdup(wanted_mountopts))) {
1469 fprintf(stderr, "%s: out of memory\n", progname);
1473 while ((item = strtok_r(mlp, ",", &ctx))) {
1474 if (!in_mntlist(item, mountopts)) {
1475 fprintf(stderr, "%s: %s mount option `%s' is missing\n",
1476 progname, justwarn ? "Warning: default"
1477 : "Error: mandatory", item);
1486 /* Trim embedded white space, leading and trailing commas from string s.
1488 static void trim_mountfsoptions(char *s)
1494 memmove(p, p + 1, strlen(p + 1) + 1);
1501 memmove(&s[0], &s[1], strlen(&s[1]) + 1);
1503 p = s + strlen(s) - 1;
1504 while (p >= s && *p == ',')
1508 int main(int argc, char *const argv[])
1510 struct mkfs_opts mop;
1511 struct lustre_disk_data *ldd;
1512 char *mountopts = NULL;
1513 char always_mountopts[512] = "";
1514 char default_mountopts[512] = "";
1517 if ((progname = strrchr(argv[0], '/')) != NULL)
1522 if ((argc < 2) || (argv[argc - 1][0] == '-')) {
1527 memset(&mop, 0, sizeof(mop));
1530 /* device is last arg */
1531 strscpy(mop.mo_device, argv[argc - 1], sizeof(mop.mo_device));
1533 /* Are we using a loop device? */
1534 ret = is_block(mop.mo_device);
1538 mop.mo_flags |= MO_IS_LOOP;
1541 /* For tunefs, we must read in the old values before parsing any
1544 /* Check whether the disk has already been formatted by mkfs.lustre */
1545 ret = is_lustre_target(&mop);
1548 fprintf(stderr, "Device %s has not been formatted with "
1549 "mkfs.lustre\n", mop.mo_device);
1554 ret = read_local_files(&mop);
1557 fprintf(stderr, "Failed to read previous Lustre data from %s "
1558 "(%d)\n", mop.mo_device, ret);
1561 if (strstr(mop.mo_ldd.ldd_params, PARAM_MGSNODE))
1562 mop.mo_mgs_failnodes++;
1565 print_ldd("Read previous values", &(mop.mo_ldd));
1568 ret = parse_opts(argc, argv, &mop, &mountopts);
1574 if (!(IS_MDT(ldd) || IS_OST(ldd) || IS_MGS(ldd))) {
1576 fprintf(stderr, "must set target type: MDT,OST,MGS\n");
1581 if (((IS_MDT(ldd) || IS_MGS(ldd))) && IS_OST(ldd)) {
1583 fprintf(stderr, "OST type is exclusive with MDT,MGS\n");
1588 if ((mop.mo_ldd.ldd_flags & (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) ==
1589 (LDD_F_NEED_INDEX | LDD_F_UPGRADE14)) {
1591 fprintf(stderr, "Can't find the target index, "
1592 "specify with --index\n");
1598 * Comment out these 2 checks temporarily, since for multi-MDSes
1599 * in single node only 1 mds node could have mgs service
1601 if (IS_MDT(ldd) && !IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1602 verrprint("No management node specified, adding MGS to this "
1604 ldd->ldd_flags |= LDD_F_SV_TYPE_MGS;
1606 if (!IS_MGS(ldd) && (mop.mo_mgs_failnodes == 0)) {
1609 fprintf(stderr, "Must specify --mgs or --mgsnode=\n");
1611 fprintf(stderr, "Must specify --mgsnode=\n");
1617 /* These are the permanent mount options (always included) */
1618 switch (ldd->ldd_mount_type) {
1620 case LDD_MT_LDISKFS:
1621 case LDD_MT_LDISKFS2: {
1622 strscat(default_mountopts, ",errors=remount-ro",
1623 sizeof(default_mountopts));
1624 if (IS_MDT(ldd) || IS_MGS(ldd))
1625 strscat(always_mountopts, ",iopen_nopriv,user_xattr",
1626 sizeof(always_mountopts));
1627 if ((get_os_version() == 24) && IS_OST(ldd))
1628 strscat(always_mountopts, ",asyncdel",
1629 sizeof(always_mountopts));
1630 /* NB: Files created while extents are enabled cannot be read
1631 if mounted with a kernel that doesn't include the Lustre ldiskfs
1634 (ldd->ldd_mount_type == LDD_MT_LDISKFS ||
1635 ldd->ldd_mount_type == LDD_MT_LDISKFS2)) {
1636 strscat(default_mountopts, ",extents,mballoc",
1637 sizeof(default_mountopts));
1642 mop.mo_flags |= MO_IS_LOOP;
1643 sprintf(always_mountopts, ",type=ext3,dev=%s",
1649 fprintf(stderr, "unknown fs type %d '%s'\n",
1650 ldd->ldd_mount_type,
1658 trim_mountfsoptions(mountopts);
1659 (void)check_mountfsoptions(mountopts, default_mountopts, 1);
1660 if (check_mountfsoptions(mountopts, always_mountopts, 0)) {
1664 sprintf(ldd->ldd_mount_opts, "%s", mountopts);
1667 if (ldd->ldd_mount_opts[0] == 0)
1668 /* use the defaults unless old opts exist */
1671 sprintf(ldd->ldd_mount_opts, "%s%s",
1672 always_mountopts, default_mountopts);
1673 trim_mountfsoptions(ldd->ldd_mount_opts);
1677 server_make_name(ldd->ldd_flags, ldd->ldd_svindex,
1678 ldd->ldd_fsname, ldd->ldd_svname);
1681 print_ldd("Permanent disk data", ldd);
1684 printf("exiting before disk write.\n");
1688 if (check_mtab_entry(mop.mo_device))
1691 /* Create the loopback file */
1692 if (mop.mo_flags & MO_IS_LOOP) {
1693 ret = access(mop.mo_device, F_OK);
1696 #ifndef TUNEFS /* mkfs.lustre */
1697 /* Reformat the loopback file */
1698 if (ret || (mop.mo_flags & MO_FORCEFORMAT))
1699 ret = loop_format(&mop);
1702 ret = loop_setup(&mop);
1705 fprintf(stderr, "Loop device setup for %s failed: %s\n",
1706 mop.mo_device, strerror(ret));
1711 #ifndef TUNEFS /* mkfs.lustre */
1712 /* Check whether the disk has already been formatted by mkfs.lustre */
1713 if (!(mop.mo_flags & MO_FORCEFORMAT)) {
1714 ret = is_lustre_target(&mop);
1717 fprintf(stderr, "Device %s was previously formatted "
1718 "for lustre. Use --reformat to reformat it, "
1719 "or tunefs.lustre to modify.\n",
1725 /* Format the backing filesystem */
1726 ret = make_lustre_backfs(&mop);
1729 fprintf(stderr, "mkfs failed %d\n", ret);
1734 /* Write our config files */
1735 ret = write_local_files(&mop);
1738 fprintf(stderr, "failed to write local files\n");
1745 /* Fix any crazy return values from system() */
1746 if (ret && ((ret & 255) == 0))
1749 verrprint("%s: exiting with %d (%s)\n",
1750 progname, ret, strerror(ret));