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Date:      Fri, 28 Apr 2000 12:54:22 -0700
From:      Kent Stewart <kstewart@3-cities.com>
To:        Zhihui Zhang <zzhang@cs.binghamton.edu>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Unable to create partition - too big?
Message-ID:  <3909EC6E.E312FC3B@3-cities.com>
References:  <Pine.SOL.4.21.0004281431320.4115-100000@sol.cs.binghamton.edu>

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Zhihui Zhang wrote:
> 
> On Fri, 28 Apr 2000, Kent Stewart wrote:
> 
> >
> >
> > Zhihui Zhang wrote:
> > >
> > > On Thu, 27 Apr 2000, Kent Stewart wrote:
> > >
> > > > Zhihui Zhang wrote:
> > > > >
> > > > > I am using /stand/sysinstall on FreeBSD 4.0 to create a partition with
> > > > > 5507979 blocks or 2689 MB (this is all the remaining space in my FreeBSD
> > > > > slice).  But it says "unable to create partition - too big?".  What is
> > > > > wrong?  I guess the size limit of a partition is much larger than 2GB.
> > > >
> > > > The drive I have FreeBSD was first partition with DOS and formated.
> > > > Win98 and NT 4 were added at that point. The drive was too small to
> > > > add FreeBSD to it and was copied to a 20GB Maxtor. FreeBSD was used to
> > > > add its slice. When I got through with that, the extended partition
> > > > was added using Win 2000.
> > > >
> > > > jade# df
> > > > Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
> > > > /dev/ad0s2a     99183    38798    52451    43%    /
> > > > /dev/ad0s2f   1488607     5223  1364296     0%    /tmp
> > > > /dev/ad0s2g  10517574  2109755  7566414    22%    /usr
> > >
> > > Thanks.  The above line shows that you do have a filesystem /usr with
> > > 10GB. I still can not figure out what's wrong with my machine though.
> > > Maybe it has something to do with my ASUS BIOS?   This disk info is as
> > > follows:
> >
> > >
> > > da0 at ahc0 bus 0 target 0 lun 0
> > > da0: <SEAGATE ST39140LW 1500> Fixed Direct Access SCSI-2 device
> > > da0: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing
> > > Enabled
> > > da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
> >
> >
> > Do you have the scsi bios set to handle drives larger than 1GB. That
> > is the equivalent of turning LBA on. A df on my computer called ruby
> > has
> >
> > /dev/ad0s1e  11934818  1957696  9022337    18%    /usr
> > /dev/da0s1e   4102037   436132  3337743    12%    /usr1
> >
> 
> I have not checked my BIOS setting yet. But now I doubt if there is a bug
> in sysinstall.  I can create a 2620MB partition, but not the entire
> remaining 2689MB partition.  Maybe some roundup prevents me from doing so.

There was always some space at the end that you couldn't get to. When
you use LBA, you can have some inaccessable areas. The end of a
partition has always appeared to be on sector 63 and LBA may not map
2689MB exactly.

Kent

> 
> -Zhihui

-- 
Kent Stewart
Richland, WA

mailto:kstewart@3-cities.com
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Hunting Archibald Stewart, b 1802 in Ballymena, Antrim Co., NIR
http://www.3-cities.com/~kstewart/genealogy/archibald_stewart.html


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