diff --git a/tools/diskwrite.c b/tools/diskwrite.c
index ab18306..0c92e22 100644
--- a/tools/diskwrite.c
+++ b/tools/diskwrite.c
@@ -55,7 +55,10 @@ typedef struct{
     uint32_t *file_table;
 }fat_info;
 
+int verbose = 0;
+
 int read_sector(FILE *file, uint32_t sector_start, uint32_t count, buffer_t buf){
+    verbose && printf("Attempting to read bytes 0x%x - 0x%x\n", sector_start * 512, sector_start * 512  + count * 512);
     int result = fseek(file, sector_start * 512, SEEK_SET);
     if(result){
         return result;
@@ -69,35 +72,57 @@ int read_sector(FILE *file, uint32_t sector_start, uint32_t count, buffer_t buf)
 int write_sector(FILE *file, uint32_t sector_start, uint32_t count, buffer_t buf){
     int result = fseek(file, sector_start * 512, SEEK_SET);
     if(result){
+        printf("Error during seek\n");
         return result;
     }
     result = fwrite(buf, 512, count, file);
     return result;
 }
 
+int write_file(char *path, fat_info *info, FILE *file){
+    FILE *ifile = fopen(path, "r");
+    if(!ifile){
+        printf("Failed to open file: %s\nAborting...\n", path);
+        exit(-1);
+    }
+}
+
+int read_file(){
+    
+}
+
+void write_cluster_value(fat_info *info, uint32_t value, uint32_t cluster){
+    for(int i = 0; i < info->bpb.fat_count; i++){
+        info->file_table[cluster + i * info->bpb.sectors_per_fat * (info->bpb.bytes_per_sector/4)] = value;
+    }
+}
+
+int fat_write_back(FILE *file, fat_info *info){
+    int res = 0;
+    if(res = write_sector(file, info->bpb.reserved_sectors, info->bpb.sectors_per_fat * info->bpb.fat_count, (buffer_t)info->file_table) == 0){
+        verbose && printf("Error during write: %d\n", res);
+    }
+}
+
 int detect_repair_fs(FILE *file, fat_info *info){
     buffer_t boot_sector = malloc(512);
     read_sector(file, 0, 1, boot_sector);
     memcpy(&(info->bpb), boot_sector, 90);
     buffer_t fat = malloc(info->bpb.sectors_per_fat * info->bpb.fat_count * info->bpb.bytes_per_sector);
-    printf("allocated 0x%x bytes for fat\n", (info->bpb.sectors_per_fat * info->bpb.fat_count * info->bpb.bytes_per_sector));
-    read_sector(file, info->bpb.reserved_sectors, info->bpb.fat_count * info->bpb.sectors_per_fat, fat);
-    info->file_table = fat;
-    if(!fat[info->bpb.root_dir_cluster]){
+    verbose && printf("allocated 0x%x bytes for fat\n", (info->bpb.sectors_per_fat * info->bpb.fat_count * info->bpb.bytes_per_sector));
+    int result = read_sector(file, info->bpb.reserved_sectors, info->bpb.fat_count * info->bpb.sectors_per_fat, fat);
+    if(result == 0){
+        printf("Error: Could not read from disk\n");
+        return 0;
+    }
+    info->file_table = (uint32_t *)fat;
+    verbose && printf("FAT assigned\n");
+    if(!info->file_table[info->bpb.root_dir_cluster]){
+        verbose && printf("Root directory not assigned, assigning cluster at cluster %d\n", info->bpb.root_dir_cluster);
         write_cluster_value(info, FILE_END, info->bpb.root_dir_cluster);
     }
 }
 
-void write_cluster_value(fat_info *info, uint32_t value, uint32_t cluster){
-    for(int i = 0; i < info->bpb.fat_count; i++){
-        info->file_table[cluster + i * info->bpb.sectors_per_fat * info->bpb.bytes_per_sector] = value;
-    }
-}
-
-int fat_write_back(FILE *file, fat_info *info){
-    
-}
-
 int main(int argc, char **argv){
     char **files = malloc(512);
     int filec = 0;
@@ -105,11 +130,12 @@ int main(int argc, char **argv){
     
     fat_info info = {};
     
-    printf("write files to virtual disk\n");
-    if(argc == 1 || !strcmp(argv[1], "help")){
+    if(argc == 1 || !strcmp(argv[1], "-h")){
+        printf("write files to virtual disk\n");
         printf("Usage:\ndiskwrite <input files> -o <output file>");
         printf("\n-h: Help");
         printf("\n-o: Specify output file\n");
+        printf("-v: Verbose\n");
     }
     for(int i = 1; i < argc; i++){
         if(!strcmp(argv[i], "-o")){
@@ -117,18 +143,26 @@ int main(int argc, char **argv){
             if(i >= argc){
                 printf("Error: No output file specified!\n");
             }
-            printf("OF: %s\n", argv[i]);
+            verbose && printf("OF: %s\n", argv[i]);
             output_file = fopen(argv[i], "r+");
             continue;
         }
+        if(!strcmp(argv[i], "-v")){
+            verbose = 1;
+            continue;
+        }
         files[filec++] = argv[i];
-        printf("IF: %s\n", argv[i]);
+        verbose && printf("IF: %s\n", argv[i]);
     }
     if(filec == 0){
         printf("Nothing to do, no files to write\n");
         return 0;
     }
     detect_repair_fs(output_file, &info);
-    printf("Finished. Exiting...\n");
+    verbose && printf("Finished. Exiting...\n");
+    for(int i = 0; i < filec; i++){
+        write_file(files[i], &info, output_file);
+    }
+    fat_write_back(output_file, &info);
     return 0;
 }
\ No newline at end of file