Subject: Wierd LFS problem.
To: None <netbsd-help@netbsd.org>
From: Alan Horn <ahorn@inktomi.com>
List: netbsd-help
Date: 06/21/2002 02:42:40
A few weeks ago I converted a couple of my larger filesystems to LFS to
cut down on fsck time (slow laptop disk).

One went ok (or seemed to), the other looks odd. I've also experienced
problems with hard system hangs during a find (first noticed when
/etc/daily kicked in)

An fsck of /usr seems to have fixed the hanging issue, but even the fsck
didn't look entirely right.. ended up needing to check the root filesystem
as well for some odd reason.

My immediate thought was that I've overlapped partitions somehow and
screwed up that way, I never do quite get the math right on that part :)

I wondered if someone could sanity check my partitions and make sure
they're ok, and also if anyone else has seen similar LFS behaviour.

The partition scheme is 'evolved' since this system started out with a
windows OS on the first half of the disk... :)

Thanks in advance for any help.

lethe# df -lk
Filesystem  1K-blocks     Used     Avail Capacity  Mounted on
/dev/wd0a      991908   715465    226847    75%    /
/dev/wd0g     8933710  7429433    610906    92%    /usr
/dev/wd0e     7691144  7263302   -341272   104%    /home

lethe# mount
/dev/wd0a on / type ffs (local)
/dev/wd0g on /usr type lfs (local)
/dev/wd0e on /home type lfs (local)

lethe# disklabel wd0
# /dev/rwd0d:
type: unknown
disk: mydisk
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 16383
total sectors: 39070080
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0 

8 partitions:
#        size    offset     fstype  [fsize bsize cpg/sgs]
 a:   2051437  19535103     4.2BSD   1024  8192    16   # (Cyl. 19380*- 21415*)
 b:   1050336  21586541       swap                      # (Cyl. 21415*- 22457*)
 c:  19534977  19535103     unused      0     0         # (Cyl. 19380*- 38759)
 d:  39070080         0     unused      0     0         # (Cyl.    0 - 38759)
 e:  16433202  22636878     4.4LFS      0     0     0   # (Cyl. 22457*- 38759)
 f:      2063        63     4.2BSD   1024  8192    16   # (Cyl.    0*- 2*)
 g:  19532975      2127     4.4LFS      0     0     0   # (Cyl.    2*- 19380*)

(wd0f is just a very small boot partition with traditional bootblock)


--
                                 Alan C. Horn
                           Inktomi - Unix Architect.
                               +1-650-653-5436
                              [ahorn@inktomi.com]