]> wimlib.net Git - wimlib/blobdiff - programs/imagex.c
split WIM apply, doc updates
[wimlib] / programs / imagex.c
index a1b9cea29654fce6423005309277ba4ee73f0056..12bfbc6201e888c839073c2611adc0266e7674af 100644 (file)
@@ -27,6 +27,7 @@
 #include <getopt.h>
 #include <stdlib.h>
 #include <stdarg.h>
+#include <glob.h>
 #include <string.h>
 #include <errno.h>
 #include <sys/stat.h>
@@ -39,6 +40,7 @@
 #define for_opt(c, opts) while ((c = getopt_long_only(argc, (char**)argv, "", \
                                opts, NULL)) != -1)
 
+
 enum imagex_op_type {
        APPEND,
        APPLY,
@@ -74,37 +76,41 @@ static const char *path_basename(const char *path)
 
 static const char *usage_strings[] = {
 [APPEND] = 
-"    imagex append DIRECTORY WIMFILE [\"IMAGE_NAME\"] [\"DESCRIPTION\"] [--boot]\n"
-"        [--check] [--config CONFIG_FILE] [--flags EDITIONID] [--verify]\n",
+"    imagex append (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
+"                  [DESCRIPTION] [--boot] [--check] [--flags EDITION_ID]\n"
+"                  [--verbose] [--dereference] [--config=FILE]\n",
 [APPLY] = 
-"    imagex apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all] DIRECTORY [--check]\n"
-"        [--verify] [--hardlink] [--symlink] [--verbose]\n",
+"    imagex apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all]\n"
+"                 (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
+"                 [--symlink] [--verbose]\n",
 [CAPTURE] = 
-"    imagex capture DIRECTORY WIMFILE [\"IMAGE_NAME\"] [\"DESCRIPTION\"]\n"
-"        [--boot] [--check] [--compress[=TYPE]] [--config CONFIG_FILE]\n"
-"        [--flags \"EditionID\"] [--norpfix] [--verify] [--verbose]\n",
+"    imagex capture (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
+"                   [DESCRIPTION] [--boot] [--check] [--compress=TYPE]\n"
+"                   [--flags EDITION_ID] [--verbose] [--dereference]\n"
+"                   [--config=FILE]\n",
 [DELETE] = 
 "    imagex delete WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check]\n",
 [DIR] = 
-"    imagex dir WIMFILE (IMAGE_NUM | IMAGE_NAME | \"all\")\n",
+"    imagex dir WIMFILE (IMAGE_NUM | IMAGE_NAME | all)\n",
 [EXPORT] = 
 "    imagex export SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
-"        DEST_WIMFILE [\"DEST_IMAGE_NAME\"] [\"DEST_IMAGE_DESCRIPTION\"]\n"
-"        [--boot] [--check] [--compress[=TYPE]]\n",
+"                  DEST_WIMFILE [DEST_IMAGE_NAME]\n"
+"                  [DEST_IMAGE_DESCRIPTION] [--boot] [--check]\n"
+"                  [--compress=TYPE]\n",
 [INFO] = 
 "    imagex info WIMFILE [IMAGE_NUM | IMAGE_NAME] [NEW_NAME]\n"
-"        [NEW_DESC] [--boot] [--check] [--header] [--lookup-table]\n"
-"        [--xml] [--extract-xml FILE] [--metadata]\n",
+"                [NEW_DESC] [--boot] [--check] [--header] [--lookup-table]\n"
+"                [--xml] [--extract-xml FILE] [--metadata]\n",
 [JOIN] = 
 "    imagex join [--check] WIMFILE SPLIT_WIM...\n",
 [MOUNT] = 
 "    imagex mount WIMFILE (IMAGE_NUM | IMAGE_NAME) DIRECTORY\n"
-"        [--check] [--debug]\n",
+"                 [--check] [--debug] [--streams-interface=INTERFACE]\n",
 [MOUNTRW] = 
 "    imagex mountrw WIMFILE [IMAGE_NUM | IMAGE_NAME] DIRECTORY\n"
-"        [--check] [--debug]\n",
+"                   [--check] [--debug] [--streams-interface=INTERFACE]\n",
 [SPLIT] = 
-"    imagex split WIMFILE SPLIT_WIMFILE PART_SIZE [--check]\n",
+"    imagex split WIMFILE SPLIT_WIMFILE PART_SIZE_MB [--check]\n",
 [UNMOUNT] = 
 "    imagex unmount DIRECTORY [--commit] [--check]\n",
 };
@@ -116,30 +122,30 @@ static const struct option common_options[] = {
 };
 
 static const struct option append_options[] = {
-       {"boot",   no_argument,       NULL, 'b'},
-       {"check",  no_argument,       NULL, 'c'},
-       {"config", required_argument, NULL, 'C'},
-       {"flags",    required_argument, NULL, 'f'},
-       {"verify", no_argument,       NULL, 'V'},
+       {"boot",        no_argument,       NULL, 'b'},
+       {"check",       no_argument,       NULL, 'c'},
+       {"config",      required_argument, NULL, 'C'},
+       {"dereference", no_argument,       NULL, 'L'},
+       {"flags",       required_argument, NULL, 'f'},
+       {"verbose",     no_argument,       NULL, 'v'},
        {NULL, 0, NULL, 0},
 };
 static const struct option apply_options[] = {
        {"check",    no_argument,       NULL, 'c'},
-       {"verify",   no_argument,       NULL, 'V'},
        {"hardlink", no_argument,       NULL, 'h'},
        {"symlink",  no_argument,       NULL, 's'},
        {"verbose",  no_argument,       NULL, 'v'},
+       {"ref",      required_argument, NULL, 'r'},
        {NULL, 0, NULL, 0},
 };
 static const struct option capture_options[] = {
-       {"boot",     no_argument,       NULL, 'b'},
-       {"check",    no_argument,       NULL, 'c'},
-       {"compress", optional_argument, NULL, 'x'},
-       {"config",   required_argument, NULL, 'C'},
-       {"flags",    required_argument, NULL, 'f'},
-       {"norpfix",  no_argument,       NULL, 'n'},
-       {"verify",   no_argument,       NULL, 'V'},
-       {"verbose",   no_argument,       NULL, 'v'},
+       {"boot",        no_argument,       NULL, 'b'},
+       {"check",       no_argument,       NULL, 'c'},
+       {"compress",    required_argument, NULL, 'x'},
+       {"config",      required_argument, NULL, 'C'},
+       {"dereference", no_argument,       NULL, 'L'},
+       {"flags",       required_argument, NULL, 'f'},
+       {"verbose",     no_argument,       NULL, 'v'},
        {NULL, 0, NULL, 0},
 };
 static const struct option delete_options[] = {
@@ -148,20 +154,20 @@ static const struct option delete_options[] = {
 };
 
 static const struct option export_options[] = {
-       {"boot",       no_argument, NULL, 'b'},
-       {"check",      no_argument , NULL, 'c'},
-       {"compress",   optional_argument, NULL, 'x'},
+       {"boot",       no_argument,       NULL, 'b'},
+       {"check",      no_argument,       NULL, 'c'},
+       {"compress",   required_argument, NULL, 'x'},
        {NULL, 0, NULL, 0},
 };
 
 static const struct option info_options[] = {
        {"boot",         no_argument, NULL, 'b'},
        {"check",        no_argument, NULL, 'c'},
+       {"extract-xml",  required_argument, NULL, 'X'},
        {"header",       no_argument, NULL, 'h'},
        {"lookup-table", no_argument, NULL, 'l'},
-       {"xml",          no_argument, NULL, 'x'},
-       {"extract-xml",  required_argument, NULL, 'X'},
        {"metadata",     no_argument, NULL, 'm'},
+       {"xml",          no_argument, NULL, 'x'},
        {NULL, 0, NULL, 0},
 };
 
@@ -173,6 +179,7 @@ static const struct option join_options[] = {
 static const struct option mount_options[] = {
        {"check", no_argument, NULL, 'c'},
        {"debug", no_argument, NULL, 'd'},
+       {"streams-interface", required_argument, NULL, 's'},
        {NULL, 0, NULL, 0},
 };
 
@@ -274,8 +281,6 @@ static int verify_image_exists_and_is_single(int image)
 
 static int get_compression_type(const char *optarg)
 {
-       if (!optarg)
-               return WIM_COMPRESSION_TYPE_LZX;
        if (strcasecmp(optarg, "maximum") == 0 || strcasecmp(optarg, "lzx") == 0)
                return WIM_COMPRESSION_TYPE_LZX;
        else if (strcasecmp(optarg, "fast") == 0 || strcasecmp(optarg, "xpress") == 0)
@@ -289,6 +294,45 @@ static int get_compression_type(const char *optarg)
        }
 }
 
+static const char *file_get_contents(const char *filename, size_t *len_ret)
+{
+       struct stat stbuf;
+       char *buf;
+       size_t len;
+       FILE *fp;
+
+       if (stat(filename, &stbuf) != 0) {
+               imagex_error_with_errno("Failed to stat the file `%s'", filename);
+               return NULL;
+       }
+       len = stbuf.st_size;
+
+       fp = fopen(filename, "rb");
+       if (!fp) {
+               imagex_error_with_errno("Failed to open the file `%s'", filename);
+               return NULL;
+       }
+
+       buf = malloc(len);
+       if (!buf) {
+               imagex_error("Failed to allocate buffer of %zu bytes to hold "
+                            "contents of file `%s'", len, filename);
+               goto out_fclose;
+       }
+       if (fread(buf, 1, len, fp) != len) {
+               imagex_error_with_errno("Failed to read %lu bytes from the "
+                                       "file `%s'", len, filename);
+               goto out_free_buf;
+       }
+       *len_ret = len;
+       return buf;
+out_free_buf:
+       free(buf);
+out_fclose:
+       fclose(fp);
+       return NULL;
+}
+
 static int imagex_append(int argc, const char **argv)
 {
        int c;
@@ -300,8 +344,12 @@ static int imagex_append(int argc, const char **argv)
        const char *wimfile;
        const char *name;
        const char *desc;
+       const char *config_file = NULL;
+       const char *config_str = NULL;
+       size_t config_len = 0;
        WIMStruct *w;
        int ret;
+       int cur_image;
 
        for_opt(c, append_options) {
                switch (c) {
@@ -313,13 +361,16 @@ static int imagex_append(int argc, const char **argv)
                        write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
                        break;
                case 'C':
-                       /*config = optarg;*/
+                       config_file = optarg;
                        break;
                case 'f':
                        flags_element = optarg;
                        break;
-               case 'V':
-                       /* verify */
+               case 'L':
+                       add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE;
+                       break;
+               case 'v':
+                       add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_VERBOSE;
                        break;
                default:
                        usage(APPEND);
@@ -337,16 +388,56 @@ static int imagex_append(int argc, const char **argv)
        name    = (argc >= 3) ? argv[2] : path_basename(dir);
        desc    = (argc >= 4) ? argv[3] : NULL;
 
+       if (config_file) {
+               config_str = file_get_contents(config_file, &config_len);
+               if (!config_str)
+                       return -1;
+       }
+
        ret = wimlib_open_wim(wimfile, open_flags, &w);
        if (ret != 0)
                return ret;
 
-       ret = wimlib_add_image(w, dir, name, desc, 
-                              flags_element, add_image_flags);
+#ifdef WITH_NTFS_3G
+       struct stat stbuf;
+
+       ret = stat(dir, &stbuf);
+       if (ret == 0) {
+               if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
+                       const char *ntfs_device = dir;
+                       printf("Capturing WIM image NTFS filesystem on `%s'\n",
+                              ntfs_device);
+                       ret = wimlib_add_image_from_ntfs_volume(w, ntfs_device,
+                                                               name,
+                                                               config_str,
+                                                               config_len,
+                                                               add_image_flags);
+                       goto out_write;
+               }
+       } else {
+               if (errno != ENOENT)
+                       imagex_error_with_errno("Failed to stat `%s'", dir);
+       }
+#endif
+       ret = wimlib_add_image(w, dir, name, config_str, config_len,
+                              add_image_flags);
+
+out_write:
        if (ret != 0)
-               goto done;
+               goto out;
+       cur_image = wimlib_get_num_images(w);
+       if (desc) {
+               ret = wimlib_set_image_descripton(w, cur_image, desc);
+               if (ret != 0)
+                       goto out;
+       }
+       if (flags_element) {
+               ret = wimlib_set_image_flags(w, cur_image, flags_element);
+               if (ret != 0)
+                       goto out;
+       }
        ret = wimlib_overwrite(w, write_flags);
-done:
+out:
        wimlib_free(w);
        return ret;
 }
@@ -355,9 +446,8 @@ done:
 static int imagex_apply(int argc, const char **argv)
 {
        int c;
-       int link_type = WIM_LINK_TYPE_NONE;
-       int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
-       bool verbose = false;
+       int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
+                        WIMLIB_OPEN_FLAG_SPLIT_OK;
        int image;
        int num_images;
        WIMStruct *w;
@@ -365,23 +455,29 @@ static int imagex_apply(int argc, const char **argv)
        const char *wimfile;
        const char *dir;
        const char *image_num_or_name;
+       int extract_flags = 0;
+
+       const char *swm_glob = NULL;
+       WIMStruct **additional_swms = NULL;
+       size_t num_additional_swms = 0;
+       glob_t globbuf;
 
        for_opt(c, apply_options) {
                switch (c) {
                case 'c':
                        open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
                        break;
-               case 'V':
-                       /* verify */
-                       break;
                case 'h':
-                       link_type = WIM_LINK_TYPE_HARD;
+                       extract_flags |= WIMLIB_EXTRACT_FLAG_HARDLINK;
                        break;
                case 's':
-                       link_type = WIM_LINK_TYPE_SYMBOLIC;
+                       extract_flags |= WIMLIB_EXTRACT_FLAG_SYMLINK;
                        break;
                case 'v':
-                       verbose = true;
+                       extract_flags |= WIMLIB_EXTRACT_FLAG_VERBOSE;
+                       break;
+               case 'r':
+                       swm_glob = optarg;
                        break;
                default:
                        usage(APPLY);
@@ -411,7 +507,7 @@ static int imagex_apply(int argc, const char **argv)
        image = wimlib_resolve_image(w, image_num_or_name);
        ret = verify_image_exists(image);
        if (ret != 0)
-               goto done;
+               goto out;
 
        num_images = wimlib_get_num_images(w);
        if (argc == 2 && num_images != 1) {
@@ -419,16 +515,68 @@ static int imagex_apply(int argc, const char **argv)
                             "(or all)", wimfile, num_images);
                usage(APPLY);
                ret = -1;
-               goto done;
+               goto out;
        }
-       ret = wimlib_set_output_dir(w, dir);
-       if (ret != 0)
-               goto done;
-       wimlib_set_verbose(w, verbose);
-       wimlib_set_link_type(w, link_type);
-       ret = wimlib_extract_image(w, image);
-done:
+
+       if (swm_glob) {
+               ret = glob(swm_glob, GLOB_ERR | GLOB_NOSORT, NULL, &globbuf);
+               if (ret != 0) {
+                       imagex_error_with_errno("Failed to process glob "
+                                               "\"%s\"", swm_glob);
+                       ret = -1;
+                       goto out;
+               }
+               num_additional_swms = globbuf.gl_pathc;
+               additional_swms = calloc(num_additional_swms, sizeof(additional_swms[0]));
+               if (!additional_swms) {
+                       imagex_error("Out of memory");
+                       ret = -1;
+                       goto out;
+               }
+               size_t offset = 0;
+               for (size_t i = 0; i < num_additional_swms; i++) {
+                       if (strcmp(globbuf.gl_pathv[i], wimfile) == 0) {
+                               offset++;
+                               continue;
+                       }
+                       ret = wimlib_open_wim(globbuf.gl_pathv[i],
+                                             open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK,
+                                             &additional_swms[i - offset]);
+                       if (ret != 0)
+                               goto out;
+               }
+               num_additional_swms -= offset;
+       }
+
+#ifdef WITH_NTFS_3G
+       struct stat stbuf;
+
+       ret = stat(dir, &stbuf);
+       if (ret == 0) {
+               if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
+                       const char *ntfs_device = dir;
+                       printf("Applying image %d of `%s' to NTFS filesystem on `%s'\n",
+                              image, wimfile, ntfs_device);
+                       ret = wimlib_apply_image_to_ntfs_volume(w, image,
+                                                               ntfs_device,
+                                                               extract_flags,
+                                                               additional_swms,
+                                                               num_additional_swms);
+                       goto out;
+               }
+       } else {
+               if (errno != ENOENT)
+                       imagex_error_with_errno("Failed to stat `%s'", dir);
+       }
+#endif
+
+       ret = wimlib_extract_image(w, image, dir, extract_flags,
+                                  additional_swms, num_additional_swms);
+out:
        wimlib_free(w);
+       if (additional_swms)
+               for (size_t i = 0; i < num_additional_swms; i++)
+                       wimlib_free(additional_swms[i]);
        return ret;
 }
 
@@ -439,14 +587,17 @@ static int imagex_capture(int argc, const char **argv)
        int c;
        int add_image_flags = 0;
        int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
-       int compression_type = WIM_COMPRESSION_TYPE_NONE;
-       const char *flags_element    = NULL;
-       bool verbose         = false;
+       int compression_type = WIM_COMPRESSION_TYPE_XPRESS;
+       const char *flags_element = NULL;
        const char *dir;
        const char *wimfile;
        const char *name;
        const char *desc;
+       const char *config_file = NULL;
+       const char *config_str = NULL;
+       size_t config_len = 0;
        WIMStruct *w;
+       int cur_image;
        int ret;
 
        for_opt(c, capture_options) {
@@ -457,25 +608,23 @@ static int imagex_capture(int argc, const char **argv)
                case 'c':
                        write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
                        break;
+               case 'C':
+                       config_file = optarg;
+                       break;
                case 'x':
                        compression_type = get_compression_type(optarg);
                        if (compression_type == WIM_COMPRESSION_TYPE_INVALID)
                                return -1;
                        break;
-               case 'C':
-                       /*config = optarg;*/
-                       break;
                case 'f':
                        flags_element = optarg;
                        break;
-               case 'n':
-                       /*norpfix = true;*/
-                       break;
                case 'v':
-                       verbose = true;
+                       add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_VERBOSE;
+                       write_flags |= WIMLIB_WRITE_FLAG_VERBOSE;
                        break;
-               case 'V':
-                       /*verify = true;*/
+               case 'L':
+                       add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE;
                        break;
                default:
                        usage(CAPTURE);
@@ -494,23 +643,61 @@ static int imagex_capture(int argc, const char **argv)
        name    = (argc >= 3) ? argv[2] : dir;
        desc    = (argc >= 4) ? argv[3] : NULL;
 
+       if (config_file) {
+               config_str = file_get_contents(config_file, &config_len);
+               if (!config_str)
+                       return -1;
+       }
+
        ret = wimlib_create_new_wim(compression_type, &w);
        if (ret != 0)
                return ret;
 
-       wimlib_set_verbose(w, verbose);
+#ifdef WITH_NTFS_3G
+       struct stat stbuf;
 
-       ret = wimlib_add_image(w, dir, name, desc, flags_element, 
-                              add_image_flags);
+       ret = stat(dir, &stbuf);
+       if (ret == 0) {
+               if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
+                       const char *ntfs_device = dir;
+                       printf("Capturing WIM image NTFS filesystem on `%s'\n",
+                              ntfs_device);
+                       ret = wimlib_add_image_from_ntfs_volume(w, ntfs_device,
+                                                               name,
+                                                               config_str,
+                                                               config_len,
+                                                               add_image_flags);
+                       goto out_write;
+               }
+       } else {
+               if (errno != ENOENT)
+                       imagex_error_with_errno("Failed to stat `%s'", dir);
+       }
+#endif
+       ret = wimlib_add_image(w, dir, name, config_str,
+                              config_len, add_image_flags);
+
+out_write:
        if (ret != 0) {
                imagex_error("Failed to add the image `%s'", dir);
-               goto done;
+               goto out;
+       }
+       cur_image = wimlib_get_num_images(w);
+       if (desc) {
+               ret = wimlib_set_image_descripton(w, cur_image, desc);
+               if (ret != 0)
+                       goto out;
+       }
+       if (flags_element) {
+               ret = wimlib_set_image_flags(w, cur_image, flags_element);
+               if (ret != 0)
+                       goto out;
        }
 
        ret = wimlib_write(w, wimfile, WIM_ALL_IMAGES, write_flags);
        if (ret != 0)
                imagex_error("Failed to write the WIM file `%s'", wimfile);
-done:
+out:
        wimlib_free(w);
        return ret;
 }
@@ -646,7 +833,7 @@ static int imagex_export(int argc, const char **argv)
        int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
        int export_flags = 0;
        int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
-       int compression_type = WIM_COMPRESSION_TYPE_NONE;
+       int compression_type = WIM_COMPRESSION_TYPE_XPRESS;
        bool compression_type_specified = false;
        const char *src_wimfile;
        const char *src_image_num_or_name;
@@ -701,7 +888,7 @@ static int imagex_export(int argc, const char **argv)
        if (stat(dest_wimfile, &stbuf) == 0) {
                wim_is_new = false;
                /* Destination file exists. */
-               if (!S_ISREG(stbuf.st_mode)) {
+               if (!S_ISREG(stbuf.st_mode) && !S_ISLNK(stbuf.st_mode)) {
                        imagex_error("`%s' is not a regular file",
                                        dest_wimfile);
                        goto done;
@@ -715,6 +902,7 @@ static int imagex_export(int argc, const char **argv)
                        imagex_error("Cannot specify a compression type that is "
                                     "not the same as that used in the "
                                     "destination WIM");
+                       ret = -1;
                        goto done;
                }
                compression_type = wimlib_get_compression_type(dest_w);
@@ -1072,19 +1260,26 @@ static int imagex_mount_rw_or_ro(int argc, const char **argv)
                case 'd':
                        mount_flags |= WIMLIB_MOUNT_FLAG_DEBUG;
                        break;
+               case 's':
+                       if (strcasecmp(optarg, "none") == 0)
+                               mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE;
+                       else if (strcasecmp(optarg, "xattr") == 0)
+                               mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR;
+                       else if (strcasecmp(optarg, "windows") == 0)
+                               mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS;
+                       else {
+                               imagex_error("Unknown stream interface \"%s\"", optarg);
+                               goto mount_usage;
+                       }
+                       break;
                default:
-                       usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)  
-                                       ? MOUNTRW : MOUNT);
-                       return -1;
+                       goto mount_usage;
                }
        }
        argc -= optind;
        argv += optind;
-       if (argc != 2 && argc != 3) {
-               usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)  
-                               ? MOUNTRW : MOUNT);
-               return -1;
-       }
+       if (argc != 2 && argc != 3)
+               goto mount_usage;
 
        wimfile = argv[0];
 
@@ -1122,6 +1317,10 @@ static int imagex_mount_rw_or_ro(int argc, const char **argv)
 done:
        wimlib_free(w);
        return ret;
+mount_usage:
+       usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)  
+                       ? MOUNTRW : MOUNT);
+       return -1;
 }
 
 /* Split a WIM into a spanned set */
@@ -1265,6 +1464,8 @@ int main(int argc, const char **argv)
                                imagex_error("Exiting with error code %d:\n"
                                             "       %s.", ret,
                                             wimlib_get_error_string(ret));
+                               if (ret == WIMLIB_ERR_NTFS_3G)
+                                       imagex_error_with_errno("errno");
                        }
                        return ret;
                }
@@ -1274,3 +1475,10 @@ int main(int argc, const char **argv)
        usage_all();
        return 1;
 }
+/*#ifndef WITH_NTFS_3G*/
+               /*ERROR("wimlib was not compiled with support for NTFS-3g, so we cannot extract");*/
+               /*ERROR("a WIM to a NTFS filesystem while preserving NTFS-specific metadata.");*/
+               /*ERROR("Please apply the WIM to a directory rather than a block device, ");*/
+               /*ERROR("and without the NTFS flag; or compile in support for NTFS-3g.");*/
+               /*return WIMLIB_ERR_UNSUPPORTED;*/
+/*#endif*/