Hi,
I'm using i386, kernel from sources about 2 weeks old, NetBSD-1.3H
snapshot userland.

After a short power outage I can't boot NetBSD directly off the hdd anymore.
I've tried to install new bootblocks (via installboot biosboot.sym /dev/rwd0a),
both -current and 1.3.2's and it didn't help. I even tried to switch
ids 165<-->169 and remove os-bs - didn't help.
I'm outa ideas now ...
I can first-stage-boot from floppy and follow off the hdd, FYI. Maybe
the bootblocks get installed on bad place ? Strange, it ever did work
for me ...

fdisk & disklabel output follows:

******* Working on device /dev/rwd0d *******
Warning: BIOS sector numbering starts with sector 1
parameters extracted from in-core disklabel are:
cylinders=8374 heads=16 sectors/track=63 (1008 sectors/cylinder)

parameters to be used for BIOS calculations are:
cylinders=8374 heads=16 sectors/track=63 (1008 sectors/cylinder)

Information from DOS bootblock is:
0: sysid 7 (OS/2 HPFS or NTFS or QNX2 or Advanced UNIX)
    start 63, size 4199265 (2050 MB), flag 0x80
	beg: cylinder    0, head   1, sector  1
	end: cylinder  261, head 100, sector 63
1: sysid 165 (FreeBSD or 386BSD or old NetBSD)
    start 4201344, size 2252880 (1100 MB), flag 0x0
	beg: cylinder   72, head   0, sector  1
	end: cylinder  258, head  15, sector 63
2: sysid 130 (Linux swap or Prime or Solaris)
    start 6456240, size 512064 (250 MB), flag 0x0
	beg: cylinder  401, head 225, sector  1
	end: cylinder  433, head 192, sector 63
3: sysid 131 (Linux native)
    start 6970320, size 1463805 (714 MB), flag 0x0
	beg: cylinder  433, head 225, sector  1
	end: cylinder  523, head 254, sector 63

disklabel: old BSD partition ID!
# /dev/rwd0d:
type: ST506
disk: mydisk
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 8374
total sectors: 8440992
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# milliseconds
track-to-track seek: 0	# milliseconds
drivedata: 0 

8 partitions:
#        size   offset     fstype   [fsize bsize   cpg]
  a:  2048256  4201344     4.2BSD     1024  8192    16   # (Cyl. 4168 - 6199)
  b:   204624  6249600       swap                        # (Cyl. 6200 - 6402)
  c:  2252880  4201344     unused        0     0         # (Cyl. 4168 - 6402)
  d:  8440992        0     unused        0     0         # (Cyl.    0 - 8373)
  e:  1463805  6970320    unknown                        # (Cyl. 6915 - 8367*)


-- 
Jaromir Dolecek <dolecek@ics.muni.cz>	http://www.ics.muni.cz/~dolecek/
-------------------------------------------------------------------------
It is better never to have been born.  But who among us has such luck?
One in a million, perhaps.