diff --git a/kernel/config.c b/kernel/config.c
index 33b62c7..9b08cea 100644
--- a/kernel/config.c
+++ b/kernel/config.c
@@ -1714,12 +1714,11 @@ STATIC void config_init_buffers(int wantedbuffers)
     else
     {
       LoL->bufloc = LOC_HMA;
-      LoL->deblock_buf = KernelAlloc(SEC_SIZE, 'B', 0);
       /* space in HMA beyond requested buffers available as user space */
       firstAvailableBuf = pbuffer + wantedbuffers;
     }
   }
-
+  LoL->deblock_buf = DiskTransferBuffer;
   LoL->firstbuf = pbuffer;
 
   DebugPrintf(("init_buffers (size %u) at", sizeof(struct buffer)));
diff --git a/kernel/fatfs.c b/kernel/fatfs.c
index 2da5e1a..764666a 100644
--- a/kernel/fatfs.c
+++ b/kernel/fatfs.c
@@ -2085,6 +2085,9 @@ STATIC int rqblockio(unsigned char command, struct dpb FAR * dpbp)
   MediaReqHdr.r_command = command;
   MediaReqHdr.r_mcmdesc = dpbp->dpb_mdb;
   MediaReqHdr.r_status = 0;
+
+  if (command == C_BLDBPB) /* help USBASPI.SYS & DI1000DD.SYS (TE) */
+    MediaReqHdr.r_bpfat = (boot FAR *)DiskTransferBuffer;
   execrh((request FAR *) & MediaReqHdr, dpbp->dpb_device);
   if ((MediaReqHdr.r_status & S_ERROR) || !(MediaReqHdr.r_status & S_DONE))
   {
diff --git a/kernel/globals.h b/kernel/globals.h
index 1489896..b99f195 100644
--- a/kernel/globals.h
+++ b/kernel/globals.h
@@ -336,6 +336,7 @@ extern UBYTE ASM BootDrive,         /* Drive we came up from                */
 
 extern keyboard ASM kb_buf;
 extern char ASM local_buffer[LINEBUFSIZE0A];
+extern UBYTE DiskTransferBuffer[SEC_SIZE];
 
 extern struct cds
   ASM TempCDS;
diff --git a/kernel/init-mod.h b/kernel/init-mod.h
index 15380ea..d9416b0 100644
--- a/kernel/init-mod.h
+++ b/kernel/init-mod.h
@@ -271,6 +271,8 @@ extern UWORD DOSFAR LBA_WRITE_VERIFY;
 /* floppy parameter table, at 70:xxxx */
 extern unsigned char DOSTEXTFAR ASM int1e_table[0xe];
 
+extern char DOSTEXTFAR DiskTransferBuffer[SEC_SIZE]; /* in dsk.c */
+
 struct RelocationTable {
   UBYTE jmpFar;
   UWORD jmpOffset;