Re: dom0 kernel immediate reboot?

On Mon, 10 Sep 2007 09:24:19 pm Juan RP wrote:
> On Mon, 10 Sep 2007 10:30:11 +0300
>
> Mikolaj Golub <to.my.trocinygmail.com> wrote:
> > On Mon, 10 Sep 2007 17:13:40 +1000 Sarton O'Brien
wrote:
> >
> >  SO> I just realised I don't know how to tell
what version of ffs I am
> >  SO> using.
> >
> > You can use dumpfs(8) for this.
>
> And scan_ffs(8).

Umm ... which one is right??

$ df /dev/wd0a
Filesystem   1K-blocks        Used      Avail %Cap Mounted
on
/dev/wd0a       198831      45824     143066  24% /

$ dumpfs /dev/wd0a|grep -i ffs
cylgrp  dynamic inodes  4.4BSD  sblock  FFSv2   fslevel 4

$ scan_ffs /dev/wd0
Disk: WDC WD800JD-75M
Total sectors on disk: 156250000
FFSv1 at 63 size 410256, last mounted on /

Now I'm just lost :P

Seriously though is there something else I can use to point
the finger at 
which one is wrong?

Sarton

On Friday 14 September 2007 12:15:38 Sarton O'Brien wrote:
> On Mon, 10 Sep 2007 09:24:19 pm Juan RP wrote:
> > On Mon, 10 Sep 2007 10:30:11 +0300
> >
> > Mikolaj Golub <to.my.trocinygmail.com> wrote:
> > > On Mon, 10 Sep 2007 17:13:40 +1000 Sarton
O'Brien wrote:
> > >
> > >  SO> I just realised I don't know how to
tell what version of ffs I am
> > >  SO> using.
> > >
> > > You can use dumpfs(8) for this.
> >
> > And scan_ffs(8).
>
> Umm ... which one is right??
>
> $ df /dev/wd0a
> Filesystem   1K-blocks        Used      Avail %Cap
Mounted on
> /dev/wd0a       198831      45824     143066  24% /
>
> $ dumpfs /dev/wd0a|grep -i ffs
> cylgrp  dynamic inodes  4.4BSD  sblock  FFSv2   fslevel
4
>
> $ scan_ffs /dev/wd0
> Disk: WDC WD800JD-75M
> Total sectors on disk: 156250000
> FFSv1 at 63 size 410256, last mounted on /
>
> Now I'm just lost :P
>
> Seriously though is there something else I can use to
point the finger at
> which one is wrong?

dumpfs is correct. scan_ffs was imported from OpenBSD at a
time, there
was no FFSv2 support in OpenBSD. Now OpenBSD supports
FFSv2.
=> scan_ffs needs re-imported.

Christoph

On Fri, 14 Sep 2007 20:15:38 +1000
Sarton O'Brien <bsd-xenroguewrt.org> wrote:

> On Mon, 10 Sep 2007 09:24:19 pm Juan RP wrote:
> > On Mon, 10 Sep 2007 10:30:11 +0300
> >
> > Mikolaj Golub <to.my.trocinygmail.com> wrote:
> > > On Mon, 10 Sep 2007 17:13:40 +1000 Sarton
O'Brien wrote:
> > >
> > >  SO> I just realised I don't know how to
tell what version of ffs I am
> > >  SO> using.
> > >
> > > You can use dumpfs(8) for this.
> >
> > And scan_ffs(8).
> 
> Umm ... which one is right??
> 
> $ df /dev/wd0a
> Filesystem   1K-blocks        Used      Avail %Cap
Mounted on
> /dev/wd0a       198831      45824     143066  24% /
> 
> $ dumpfs /dev/wd0a|grep -i ffs
> cylgrp  dynamic inodes  4.4BSD  sblock  FFSv2   fslevel
4
> 
> $ scan_ffs /dev/wd0
> Disk: WDC WD800JD-75M
> Total sectors on disk: 156250000
> FFSv1 at 63 size 410256, last mounted on /
> 
> Now I'm just lost :P
> 
> Seriously though is there something else I can use to
point the finger at 
> which one is wrong?

Clearly dumpfs(8) is wrong, take a look at my test:

$ sudo vnconfig vnd0 foo.img
$ sudo disklabel -iI vnd0
partition> P
4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
a:   1048576         0     4.2BSD      0     0     0  #
(Cyl.      0 - 511)
d:   1048576         0     unused      0     0        #
(Cyl.      0 - 511)
partition> W
Label disk [n]? y
Label written
partition> Q
$ sudo newfs /dev/rvnd0a

/dev/rvnd0a: 512.0MB (1048576 sectors) block size 8192,
fragment size 1024
using 12 cylinder groups of 42.67MB, 5462 blks, 10624
inodes. super-block
backups (for fsck_ffs -b #) at: 32, 87424, 174816, 262208,
349600, 436992,
524384, 611776, 699168, 786560, 873952, 961344,

$ scan_ffs -l vnd0
Disk: vnd
Total sectors on disk: 1048576

#        size    offset fstype [fsize bsize cpg/sgs]
X:    1048576         0 4.2BSD   1024  8192       1 # 
[FFSv1]
^C
$ dumpfs -s vnd0a|grep -i
ffs cylgrp  dynamic inodes  4.4BSD  sblock  FFSv2   fslevel
4
$

dumpfs(8) should say "4.4BSD and sblock FFS".

-- 
Juan Romero Pardines	- The NetBSD Project
http://plog.xtrarom.org	-
NetBSD/pkgsrc news in Spanish