🚀 go-pugleaf

On second thought, I'll just post what I've got.
I'm sure you may want to change the partitions around,
but the other data should be correct.
Here is the relevant portion from scsi_data.c and disktab:

--------------------------------------------------
...

#define DEV_WRENIV  "WRENIV"    /* Add entry for Wren IV */
#define DEV_WRENVI  "WRENVI"    /* Add entry for Wren VI */

...

}, sz_wreniv_sizes[8] = {
        32768,  0,              /* Ripped off from rz55 */
        131072, 32768,          /* B=blk 32768 thru 163839 */
        -1,     0,              /* C=blk 0 thru end (621180) */
        0, 	0,              /* D=blk 163840 thru 316285 */
        0,	0,              /* E=blk 316286 thru 468731 */
        0,      0,              /* F=blk 468732 thru end (621180) */
        -1,     131073,         /* G=blk 163840 thru end (621180) */
	0, 	0,          	/* H=zero for default */
}, sz_wrenvi_sizes[8] = {
	32768,  0,              /* A=blk 0 thru 32767 */
	131072, 32768,          /* B=blk 32768 thru 163839 */
	-1, 	0,	        /* C=blk 0 thru end (1321920) */
	393216, 163840,         /* D=blk  about 180 meg */
	393216, 557056,         /* E=blk  about 180 meg */
	-1, 	950272,         /* F=blk  about 170 meg */
	-1, 	163840,         /* G=blk 163840 thru end (1321920) */
	0, 	0,          	/* H=zero for default */
}, sz_generic_size[8] = {

...

/* DISKS */
/* WREN IV */
{"CDC     94171-9", 15, DEV_WRENIV, SZ_DISK, sz_wreniv_sizes, 
  SCSI_REQSNS|SCSI_READCAPACITY, 0 },
/* WREN VI */
{"CDC     94191-15", 16, DEV_WRENVI, SZ_DISK, sz_wrenvi_sizes, 
  SCSI_REQSNS|SCSI_READCAPACITY, 0 },

--------------------------------------------------

wreniv|WRENIV|WrenIV CDC 94171-9:\
	:ty=winchester:ns#47:nt#9:nc#1409:\
	pa#32768:ba#8192:fa#1024:\
	pb#131072:bb#8192:fb#1024:\
	pc#582498:bc#8192:fc#1024:\
	pd#139552:bd#8192:fd#1024:\
	pe#139552:be#8192:fe#1024:\
	pf#139554:bf#8192:ff#1024:\
	pg#418658:bg#8192:fg#1024:

wrenvi|WRENVI|WrenVI CDC 94191-15:\
	:ty=winchester:ns#54:nt#15:nc#1632:\
	pa#32768:ba#8192:fa#1024:\
	pb#131072:bb#8192:fb#1024:\
	pc#1296645:bc#8192:fc#1024:\
	pd#393216:bd#8192:fd#1024:\
	pe#393216:be#8192:fe#1024:\
	pf#346373:bf#8192:ff#1024:\
	pg#1132805:bg#8192:fg#1024:

--------------------------------------------------

Hope you find these useful.

\/  Ken Chin-Purcell
<>  also known as ken@msc.umn.edu and (612)626-1340
/\  Minnesota Supercomputer Center, University of Minnesota