Installing FC5 on pre-partitioned /dev/hdb
Craig White
craigwhite at azapple.com
Mon Apr 3 18:01:53 UTC 2006
On Mon, 2006-04-03 at 13:53 -0400, Gene Heskett wrote:
> On Monday 03 April 2006 13:40, Craig White wrote:
> >On Mon, 2006-04-03 at 13:19 -0400, Gene Heskett wrote:
> >> On Monday 03 April 2006 12:19, Sjoerd Mullender wrote:
> >> >Sjoerd Mullender wrote:
> >> >> Gene Heskett wrote:
> >> >>> I was under the impression (and no idea where I heard/read that
> >> >>> now) that any partitions marked 0 0 on the end of the fstab line
> >> >>> were mounted in 'single' mode. Is this not the case? I haven't
> >> >>> used single with this FC2 install ever, no need to so far, so I
> >> >>> don't know, but I'll find out the next time I reboot to it.
> >> >>
> >> >> Those numbers are the dump frequency and dump pass number, i.e.
> >> >> unused by nearly everyone nowadays. They were there way back
> >> >> (nearly 30 years ago) when they were actually used, but since
> >> >> hardly anybody uses dump/restore anymore to make backups, those
> >> >> fields are not used anymore. See the descriptions of fs_freq and
> >> >> fs_passno in the manual page for fstab(5).
> >> >>
> >> >> (If you look at the manual for dump (if you have it installed),
> >> >> you can see that dump uses dump levels. A dump at level n will
> >> >> dump everything that changed since the last level m (m <= n)
> >> >> dump. The pass number specifies which partitions can be dumped
> >> >> at the same time, first all partitions with pass number 0, then
> >> >> all with pass number 1, etc.)
> >> >
> >> >Oops. The level is for fsck (file system check), not dump. It's
> >> > been a while.
> >>
> >> I was thinking I'd recalled it in that context. Its not well
> >> clarified in the manpages IMP.
> >
> >----
> >man fstab...
> >
> >The fifth field, (fs_freq), is used for these filesystems by the
> > dump(8) command to determine which filesystems need to be dumped. If
> > the fifth field is not present, a value of zero is returned and
> > dump will assume that the filesystem does not need to be dumped.
> >
> >The sixth field, (fs_passno), is used by the fsck(8) program to
> >determine the order in which filesystem checks are done at reboot
> > time. The root filesystem should be specified with a
> > fs_passno of 1, and other filesystems should have a fs_passno of 2.
> > Filesystems within a drive will be checked sequentially, but
> > filesystems on different drives will be checked at the same time to
> > utilize parallelism available in the hardware. If the sixth field
> > is not present or zero, a value of zero is returned and fsck will
> > assume that the filesystem does not need to be checked.
> >
> >Seems clear enough but you can write a patch for the man page if you
> > can explain it better.
> >
> >Craig
>
> Humm, its been several years since I looked at that, and it appears
> someone has beat me to it, thats plenty clear enough to me now.
----
evidently almost 7 years (2 kernels ago)
the date of the man page in the footer states...
Linux 2.2 15 June 1999
FSTAB(5)
Craig
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