I just got NetBSD 1.5.2 running on a IIci, and have some small questions.
(Mem 32M, 2 Gb HD, Radius 24ac card)

1) I had to put the first partition in the 1st Gb to get it working.

However I still have odd problems with mounting one of the >1Gb partitions
under NetBSD. There seems to be something rotten with partitions crossing
the 1GB mark: (sd0e below. I also mounted sd0f which is entirely >1GB to
show that that one doesn't suffer from it)

disklabel:

7 partitions:
#        size   offset     fstype   [fsize bsize cpg/sgs]
  a:   500000       96     4.2BSD        0     0     0   # (Cyl.    0*-
496*)
  b:   122846   500096       swap                        # (Cyl.  496*-
617*)
  c:  4308352        0     unused        0     0         # (Cyl.    0 -
4274*)
  d:   100000   622942        HFS                        # (Cyl.  617*-
717*)
  e:  1000000  1722942     4.2BSD        0     0     0   # (Cyl. 1709*-
2701*)
  f:  1585410  2722942     4.2BSD        0     0     0   # (Cyl. 2701*-
4274*)
  g:  1000000   722942     4.2BSD        0     0     0   # (Cyl.  717*-
1709*)

temp141a# mount dev/sd0e /mnt
temp141a# cd /mnt
temp141a# du
1       .
temp141a# df
Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
/dev/sd0a      241799    88411   129208    40%    /
kernfs              1        1        0   100%    /kern
procfs              4        4        0   100%    /proc
/dev/sd0f      767214        9   690483     0%    /usr/src
/dev/sd0e     1251093   767223   483870    61%    /mnt
temp141a#

It seems that all partitions before sd0e are counted as sd0e "in use"

The free block counts seems to be ok.

Is this a known problem?

2) I can buy a Sonnet Presto 80/40 MHz for Eur 30 (+/- $25).  I do not use
 MacOS. Is the status of these accelerators still the same (notably the
68040 on  68030 system problems?)