diff --git a/slsDetectorServers/slsDetectorServer/include/common.h b/slsDetectorServers/slsDetectorServer/include/common.h
index 3c2b3fccc..821e28040 100644
--- a/slsDetectorServers/slsDetectorServer/include/common.h
+++ b/slsDetectorServers/slsDetectorServer/include/common.h
@@ -8,6 +8,10 @@
 #include <sys/types.h>
 #include <time.h>
 
+#define TEMP_PROG_FOLDER_NAME           "/var/tmp/"
+#define TEMP_PROG_FOLDER_NAME_ALL_FILES "/var/tmp/*"
+#define TEMP_PROG_FILE_NAME             TEMP_PROG_FOLDER_NAME "tmp.rawbin"
+
 enum numberMode { DEC, HEX };
 enum PROGRAM_INDEX { PROGRAM_FPGA, PROGRAM_KERNEL, PROGRAM_SERVER };
 
@@ -49,4 +53,7 @@ int verifyChecksum(char *mess, char *functionType, char *clientChecksum,
                    MD5_CTX *c, char *msg);
 int setupDetectorServer(char *mess, char *sname);
 
-int writeBinaryFile(char* mess, char* fname, char* buffer, const uint64_t filesize);
\ No newline at end of file
+int writeBinaryFile(char *mess, char *fname, char *buffer,
+                    const uint64_t filesize, char *errorPrefix);
+
+int moveBinaryFile(char *mess, char *dest, char *src, char *errorPrefix);
diff --git a/slsDetectorServers/slsDetectorServer/include/programViaBlackfin.h b/slsDetectorServers/slsDetectorServer/include/programViaBlackfin.h
index afb76acf2..9abe2e678 100644
--- a/slsDetectorServers/slsDetectorServer/include/programViaBlackfin.h
+++ b/slsDetectorServers/slsDetectorServer/include/programViaBlackfin.h
@@ -8,10 +8,6 @@
 #include <stdio.h>
 #include <sys/types.h>
 
-#define TEMP_PROG_FOLDER_NAME           "/var/tmp/"
-#define TEMP_PROG_FOLDER_NAME_ALL_FILES "/var/tmp/*"
-#define TEMP_PROG_FILE_NAME             TEMP_PROG_FOLDER_NAME "tmp.rawbin"
-
 int defineGPIOpins(char *mess);
 int FPGAdontTouchFlash(char *mess);
 int FPGATouchFlash(char *mess);
@@ -37,4 +33,3 @@ int writeToFlash(char *mess, ssize_t fsize, FILE *flashfd, FILE *srcfd);
 /** Notify fpga to pick up firmware from flash and wait for status confirmation
  */
 int waitForFPGAtoTouchFlash(char *mess);
-int moveBinaryFile(char *mess, char *serverName);
diff --git a/slsDetectorServers/slsDetectorServer/src/common.c b/slsDetectorServers/slsDetectorServer/src/common.c
index 191fd118e..893c2f41c 100644
--- a/slsDetectorServers/slsDetectorServer/src/common.c
+++ b/slsDetectorServers/slsDetectorServer/src/common.c
@@ -496,15 +496,15 @@ int setupDetectorServer(char *mess, char *sname) {
 }
 
 int writeBinaryFile(char *mess, char *fname, char *buffer,
-                    const uint64_t filesize) {
+                    const uint64_t filesize, char *errorPrefix) {
     LOG(logINFO, ("\tWriting Detector Server Binary...\n"));
 
     FILE *fp = fopen(fname, "wb");
     if (fp == NULL) {
         sprintf(mess,
-                "Could not copy detector server. (opening file to write(%s). "
-                "Maybe it is being used? Try another server name?\n",
-                fname);
+                "Could not %s. (opening file to write(%s). "
+                "Maybe it is being used? Try another name?\n",
+                errorPrefix, fname);
         LOG(logERROR, (mess));
         return FAIL;
     }
@@ -532,9 +532,9 @@ int writeBinaryFile(char *mess, char *fname, char *buffer,
         // write
         if (bytes != (size_t)writeSize) {
             sprintf(mess,
-                    "Could not copy detector server. Expected to write %lu "
+                    "Could not %s. Expected to write %lu "
                     "bytes, wrote %lu bytes). No space left? \n",
-                    (long unsigned int)filesize,
+                    errorPrefix, (long unsigned int)filesize,
                     (long unsigned int)bytesWritten);
             LOG(logERROR, (mess));
             return FAIL;
@@ -545,12 +545,35 @@ int writeBinaryFile(char *mess, char *fname, char *buffer,
     }
     printf("\n");
     if (fclose(fp) != 0) {
-        sprintf(mess,
-                "Could not copy detector server. (closing file pointer)\n");
+        sprintf(mess, "Could not %s. (closing file pointer)\n", errorPrefix);
         LOG(logERROR, (mess));
         return FAIL;
     }
-    LOG(logINFO, ("\tWritten server binary to %s (%lu bytes)\n", fname,
+    LOG(logINFO, ("\tWritten binary to %s (%lu bytes)\n", fname,
                   (long unsigned int)bytesWritten));
     return OK;
-}
\ No newline at end of file
+}
+
+int moveBinaryFile(char *mess, char *dest, char *src, char *errorPrefix) {
+    char cmd[MAX_STR_LENGTH] = {0};
+    char retvals[MAX_STR_LENGTH] = {0};
+
+    // one can move into the current process binary (will not interfere in
+    // kernel mode)
+
+    char *format = "mv %s %s";
+    if (snprintf(cmd, MAX_STR_LENGTH, format, src, dest) >= MAX_STR_LENGTH) {
+        sprintf(mess, "Could not %s. Command to move binary is too long\n",
+                errorPrefix);
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    if (executeCommand(cmd, retvals, logDEBUG1) == FAIL) {
+        snprintf(mess, MAX_STR_LENGTH, "Could not %s. (moving). %s\n",
+                 errorPrefix, retvals);
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    LOG(logINFO, ("\tMoved file from %s to %s\n", src, dest));
+    return OK;
+}
diff --git a/slsDetectorServers/slsDetectorServer/src/programViaBlackfin.c b/slsDetectorServers/slsDetectorServer/src/programViaBlackfin.c
index afe9f519d..3e5d8538b 100644
--- a/slsDetectorServers/slsDetectorServer/src/programViaBlackfin.c
+++ b/slsDetectorServers/slsDetectorServer/src/programViaBlackfin.c
@@ -574,26 +574,3 @@ int waitForFPGAtoTouchFlash(char *mess) {
     LOG(logINFO, ("\tFPGA has picked up the program from flash\n"));
     return OK;
 }
-
-int moveBinaryFile(char *mess, char *serverName) {
-    char cmd[MAX_STR_LENGTH] = {0};
-    char retvals[MAX_STR_LENGTH] = {0};
-
-    char *format = "mv %s %s";
-    if (snprintf(cmd, MAX_STR_LENGTH, format, TEMP_PROG_FILE_NAME,
-                 serverName) >= MAX_STR_LENGTH) {
-        strcpy(mess, "Could not copy detector server. Command "
-                     "to move server binary is too long\n");
-        LOG(logERROR, (mess));
-        return FAIL;
-    }
-    if (executeCommand(cmd, retvals, logDEBUG1) == FAIL) {
-        snprintf(mess, MAX_STR_LENGTH,
-                 "Could not copy detector server (moving). %s\n", retvals);
-        LOG(logERROR, (mess));
-        return FAIL;
-    }
-    LOG(logINFO, ("\tmoved from temp folder to main with proper name (%s)\n",
-                  serverName));
-    return OK;
-}
diff --git a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
index 5dccd4994..f7b74d004 100644
--- a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
+++ b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
@@ -9381,7 +9381,8 @@ void receive_program_via_blackfin(int file_des, enum PROGRAM_INDEX index,
                                    totalsize);
         break;
     case PROGRAM_SERVER:
-        ret = moveBinaryFile(mess, serverName);
+        ret = moveBinaryFile(mess, serverName, TEMP_PROG_FILE_NAME,
+                             "update detector server");
         if (ret == OK) {
             ret = setupDetectorServer(mess, serverName);
         }
@@ -9468,7 +9469,14 @@ void receive_program_default(int file_des, enum PROGRAM_INDEX index,
 #endif
 #if defined(GOTTHARD2D) || defined(MYTHEN3D) || defined(EIGERD)
     case PROGRAM_SERVER:
-        ret = writeBinaryFile(mess, serverName, src, filesize);
+        ret = writeBinaryFile(mess, TEMP_PROG_FILE_NAME, src, filesize,
+                              "update detector server");
+        // extra step to write to temp and move to real file as
+        // fopen will give text busy if opening same name as process name
+        if (ret == OK) {
+            ret = moveBinaryFile(mess, serverName, TEMP_PROG_FILE_NAME,
+                                 "update detector server");
+        }
         if (ret == OK) {
             ret = verifyChecksumFromFile(mess, functionType, checksum,
                                          serverName);