I am quite new to this list, (I have just get subscribed :-)
 If I am writing out-of-line topics, please shoot me.

 I have started intalling 1.2 to Sun-3/80.
 I get sun3x boot tape and install tape. I have successfully
booted as following.
---------------------------------------------
NetBSD 1.2E (GENERIC) #0: Mon May 26 19:15:02 PDT 1997
    jeremy@mobeius:/usr/home/netbsd/src/sys/arch/sun3x/compile/GENERIC
Model: Sun 3/80 (hostid 42004380)
fpu: mc68882
real mem = 16777216
avail mem = 14393344
---------------------------------------------
but after typing # install, I got following problem.
---------------------------------------------
Proceed with installation? [n] y
Cool!  Let's get to it...
cp: /tmp/disktab.shadow: Read-only file system
---------------------------------------------
Disk unit is Quantum 105S and I believe it is properly configured.
---------------------------------------------
# df
Filesystem  512-blocks     Used    Avail Capacity  Mounted on
root_device      15966    13044     2922    82%    /
kernfs               2        2        0   100%    /kern
# edlabel /dev/rsd0c    
edlabel menu:
print   - display the current disk label
modify  - prompt for changes to the label
write   - write the new label to disk
quit    - terminate program
edlabel> p
        type_num: 4
        sub_type: 0
       type_name: SCSI disk
       pack_name: Quantum ProDrive
    bytes/sector: 512
   sectors/track: 35
 tracks/cylinder: 6
       cylinders: 974
sectors/cylinder: 210
partition      start         (c/t/s)      nblks         (c/t/s)  type

 a (root)          0       (0/00/00)      21000     (100/00/00)  4.2BSD
 b (swap)      21000     (100/00/00)      42000     (200/00/00)  swap
 c (disk)          0       (0/00/00)     204540     (974/00/00)  unknown
 d (user)      63000     (300/00/00)      99540     (474/00/00)  4.2BSD
 e (user)          0       (0/00/00)          0       (0/00/00)  unused
 f (user)          0       (0/00/00)          0       (0/00/00)  unused
 g (user)          0       (0/00/00)          0       (0/00/00)  unused
 h (user)     162540     (774/00/00)      42000     (200/00/00)  4.2BSD
edlabel> 
---------------------------------------------
Please advice where and what to check.
Thanks in advance,
---
Makoto Fujiwara
(藤原)