Re: how to get the size of a disk partition from user space?

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On 5/19/08, Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> On 07:55 Sun 18 May     , Robert P. J. Day wrote:
> >
> >   possibly slightly off-topic, but i've been handed (not at hand at
> > the moment, though) an embedded system running 2.4.26, which has a
> > bunch of flash-based partitions corresponding to the device files
> > /dev/scsi/host-?/bus0/target0/lun0/part-?.
> >
> >   what i want is a quick way to determine the size in bytes of those
> > partitions.  will there be entries for them in /proc/partitions?  is
> > there a better way?  they won't necessarily be mounted; in fact, they
> > probably won't be.  thoughts?  thanks.
>
> cat /sys/block/hda/hda1/size
>        -Michi
> --

it display the data in which unit?
On my system, the output is as follows:-

adil@localhost:~> df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              10G  4.7G  5.3G  47% /
udev                  466M  208K  466M   1% /dev
/dev/sda5              43G   14G   27G  35% /home
/dev/sda7              20G  7.1G   12G  39% /home1

adil@localhost:~> cat /sys/block/sda/sda1/size
20900502
adil@localhost:~> cat /sys/block/sda/sda5/size
91570437

These outputs are not matching with the first one.
Am I missing anything??

> programing a layer 3+4 network protocol for mesh networks
> see http://michaelblizek.twilightparadox.com
>
>
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