USB key with 7.5 GByte but no space left on device after 4 GByte written

[Matthias Apitz]

El día Thursday, March 05, 2009 a las 03:26:12PM +0100, Paul B. Mahol escribió:

> On 3/5/09, Matthias Apitz <guru at unixarea.de> wrote:
> > El dia Thursday, March 05, 2009 a las 10:48:52AM +0100, Wojciech Puchar
> > escribio:
> >
> >> >>formatted properly?
> >> >
> >> >I did a 'ls -l /dev/da*' after key insert and there was only /dev/da0;
> >> >maybe I should do
> >> >
> >> ># newfs_msdos /dev/da0
> >> >
> >> >???
> >>
> >> to be sure do
> >>
> >> dd if=/dev/zero of=/dev/da0 bs=64k count=1
> >>
> >> before to clean anything from beginning, if any mess is there.
> >
> > to end this threat, I did:
> >
> > # dd if=/dev/zero of=/dev/da0 bs=64k count=1
> > # newfs_msdos /dev/da0
> > # mount -t msdosfs /dev/da0 /mnt
> > # time cat file file file > /mnt/big
> > cat: stdout: File too large
> > 0.276u 19.421s 14:36.63 2.2%    11+1180k 33887+65536io 0pf+0w
> >
> > # df -kh /mnt
> > Filesystem    Size    Used   Avail Capacity  Mounted on
> > /dev/da0      7.5G    4.0G    3.5G    53%    /mnt
> >
> > i.e. it writes the maximal file size of 4G in FAT32 and 3.5G are left as
> > free;
> >
> > the write speed is
> > 4294963200 in 14:36.63 minutes, i.e. 4902926 per sec;
> 
> 
> should'nt you first try to measure with dd(1) how da0 is big
> before we start blaming msdosfs:
> 
> # dd if=/dev/da0 of=/dev/null bs=1m  ?

I've not blamed anybody; please check the full thread; I've reported a
problem with a lot of details and got help;

the device is around 7.7G but wasn't useable like that as it was
formated by the factory; nothing more;

	matthias
-- 
Matthias Apitz
Manager Technical Support - OCLC GmbH
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