I found the "install" failed to boot on both my 712s

One has 128MB RAM and fails as follows:

>> (fredette@the-gates-of-delirium.home, Tue Jun  4 13:28:53 EDT 2002)
>> Enter "reset" to reset system.
Boot: [[[lf0a:]netbsd][-a][-c][-d][-s][-v][-q]] :-
2149424+81920+188416 [283456+68920]=0x31959c
Start @ 0x80000 [1=0x342000-0x39959c]...
SPID bits: 0x0, error = -2
panic: pmap_bootstrap: cannot insert BTLB entry

Config.....

Processor revision 2.2 60MHz
Instruction Cache Size:   32768
Data Cache Size:          32768
Memory Size:  128 MB
Built in floating point coprocessor
Board Serial Number 401101RBRH
BootRom Version    1.5
auto boot off
auto search on
fastboot off
Primary boot path:    scsi.6.0
Alternate boot path:  scsi.3.0
Console path:         rs232.9600.8.none
LAN Station Addresses: 080009-934958
                       080009-934959

A Machine with 712/60 with 64MB RAM

mainbus0 (root)panic: mbattach: cannot map mainbus IO space

blah

db> trace
cpu_Debugger(153f18,0,1000,20) at cpu_Debugger+0x10
panic(249638,341aa8,1000,0) at panic+0x140
panic(0,d8bf80,2508bc,0) at panic+0xf0
mbattach(0,3096e8,2508bc,0) at mbattache+0xc0
config_attach(2508bc,2508bc,0,0) at config_attach+0x450
config_rootfound(33c670,0,3,ffffffff) at config_rootfound+0x64



This 64MB machine is similar to the above but processor rev 2.3 and boot 
rom 1.6and still has its console path set to graphics.

I have a 715/100/XC that I would like to try but as it has 256MB installed,
I will leave that for a while.