Subject: Re: Is the "df" command reporting accurately?
To: port-Mac68k netbsd mailing list <port-mac68k@netbsd.org>
From: Josh Kuperman <josh@saratoga.lib.ny.us>
List: port-mac68k
Date: 02/07/2001 14:22:39
At first, when I posted this I thought something was fishy with /home
or even that I might somehow have the wrong df command.
> roberta# df
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/sd0a 62487 14610 41628 25% /
> /dev/sd0e 992264 883059 9978 98% /var
> /dev/sd0g 882193 273902 520071 34% /usr
> /dev/sd0f 1184662 1004683 61512 94% /home
> kernfs 1 1 0 100% /kern
> procfs 4 4 0 100% /proc
> /dev/cd0c 367272 367272 0 100% /cdrom
I have decided to reinstall using the sysinstall method anyhow, but it
is clear to me that there is a lot wrong with this picture. Way too
much to fix without reinstalling (reinstalling is still trivial at
this point - I don't have anything I need to preserve). It is also
somewhat difficult to even tell when 1KB and 512B blocks are being
reported by some of the programs or why. du seems to report 1k blocks
regardless, contrary to what the man pages say about the -k
option. What size does the system actually use? Am I safe in assuming
1K blocks. And one of the reasons I have decided to reinstall was that
I based some estimates of what I needed on the output of the df
command, so I thought I might actually need > 70MB for var. Is it
documented how much disk space is used by a basic install? I'll find
out, but now I'm assumming I can probably get by with less than 50M
for a /var directory.
here is the disklabel output.
roberta# disklabel /dev/sd0
# /dev/sd0c:
type: SCSI
disk: FIREBALL_TM1280
label: fictitious
flags:
bytes/sector: 512
sectors/track: 183
tracks/cylinder: 2
sectors/cylinder: 366
cylinders: 6810
total sectors: 2503872
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # microseconds
track-to-track seek: 0 # microseconds
drivedata: 0
7 partitions:
# size offset fstype [fsize bsize cpg]
a: 130000 41056 4.2BSD 0 0 0 # (Cyl. 112*- 467*)
b: 204000 171056 swap # (Cyl. 467*- 1024*)
c: 2503872 0 unused 0 0 # (Cyl. 0 - 6841*)
d: 40960 96 HFS # (Cyl. 0*- 112*)
e: 228816 1875056 4.2BSD 0 0 0 # (Cyl. 5123*- 5748*)
f: 400000 2103872 4.2BSD 0 0 0 # (Cyl. 5748*- 6841*)
g: 1500000 375056 4.2BSD 0 0 0 # (Cyl. 1024*- 5123*)
disklabel: boot block size 0
disklabel: super block size 0
current df output with a newfs /home
roberta# df
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/sd0a 62487 14642 41596 26% /
/dev/sd0e 992264 883612 9425 98% /var
/dev/sd0g 882193 273902 520071 34% /usr
kernfs 1 1 0 100% /kern
procfs 4 4 0 100% /proc
/dev/cd0c 367272 367272 0 100% /cdrom
/dev/sd0f 192806 12683 170482 6% /home
diskusage reported from home and var:
roberta# du -Psc /home
12683 /home
12683 total
roberta# du -Psc /var
1419 /var
1419 total
roberta# du -Pcsx /
14642 /
14642 total
--
Josh Kuperman
josh@saratoga.lib.ny.us