Problem to save file on the hard disk! What I have to set to do it ?

[Thomas Doerfler (nt)]

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Matteo,

well, it SHOUDL work, if you have a FAT partition in the primary
partition table of your harddisk.
You are mentioning havong Linux on hda3, most problable it will use
"ext3" as the filesystem, and RTEMS does not know this FS type.

When you are running Linux on your system, what kind of output do you
get from the command

fdisk -l /dev/hda

(you have to run this as root).

wkr,
Thomas.


Matteo schrieb:
> Ok, like you have suggested I understood the steps to mount the hardisk, but 
> the problem is that the fileio example doesn't mount my hardisk!
> I follow the steps suggest from the fileio.doc but after it asks to me to enter 
> the partition table of first harddisk ( /dev/hda ) I try to mount the 
> partitions and I have an error, He says to me 
> " fsmount: mounting of "/dev/hda1" to "/mnt/hda1" failed: No such file or 
> directory "  and so on for hda2,3,4 and for hdc1,2,3,4 
> 
> Linux partition is on hda3, but the fileio example doesn't mount it !
> What's the problem ?
> 
> Have you some idea ?
> 
> Really Thanks in advance
> 
> Matteo
> 
> 
> 
> Scrive "Thomas Doerfler (nt)" <Thomas.Doerfler at imd-systems.de>:
> 
> 
> Matteo,
> 
> I assume you are working on a standard i386 pc hardware. Have a look at
> the "fileio" sample application available in the RTEMS source tree under
> "cpukit/testsuites/samples/fileio". You should try to get it working on
> your system (it should work from scratch if you got a standard PC system).
> 
> Have a look at "fileio.doc", it explains a bit what should work with
> this sample program.
> 
> In your application, you will have to do the following steps to get
> access to your harddisk:
> 
> - add the IDE and ATA drivers to your standard driver table (see entries
> in fileio/system.h)
> - add a rtems_bdbuf_configuration data structure to your system (once
> again, see fileio/system.h)
> 
> - add a fs_table to your application, which specifies which harddisk
> partitions are to be mounted to which mount points (see fileio/
> 
> - call the "rtems_ide_part_table_initialize" function after system
> startup to read in your harddisk partition table. This call will create
> a new device node (/dev/hda1 ...) for each partition available.
> 
> - call the "rtems_fsmount" function to mount the partitions to their
> respective mount points. Have a look into "libmisc/fsmount" to find out,
> how it works.
> 
> Then you can access the harddisk partitions at their respective mount
> points.
> 
> wkr,
> Thomas.
> 
> 
> Matteo schrieb:
> 
>>Hi 
>>Joe says to me ask you how I can save a file on hard disk? if I have to set
> 
>>something in my linux's grub?
> 
>>below the previous email sent to Joel.
> 
>>Thanks in advance 
> 
>>Matteo
> 
>>Scrive Joel Sherrill <joel.sherrill at oarcorp.com>:
> 
> 
> 
>>>Matteo wrote:
> 
> 
> 
>>>>Hi
>>>>
>>>>I'm trying to use the fdopen example of the package example-4.6.99.2 but
> 
> it
> 
>>>>doesn't works, It doesn't create the file!
>>>>
>>>>
> 
>>>I could be wrong but I think this one actually was submitted as part of 
>>>a bug report and
>>>the bug may still be outstanding.  It may be fixed.  I just don't 
>>>remember.  See below for
>>>the more likely case.
> 
> 
> 
>>>>But I can launch the hello world example and I create some simple posix
> 
>>>program 
> 
> 
>>>>with rtems yet so I think to have configured it well.
>>>>So what can be the problem ?
>>>>May be when I launch the fdopen example I have to set some particular
> 
>>>privilege 
> 
> 
>>>>in the "grub"(my linux boot loader) to allow it to write on the hard
> 
> disk?
> 
>>>this 
> 
> 
>>>>is only my newbye's opinion..
>>>>
>>>>
>>>>
> 
>>>Ohh.... if you are doing anything with the hard disk, then there is some 
>>>filesystem specific
>>>configuration to get things right.  The example code is only going to 
>>>work with the IMFS
>>>which is a RAM based filesystem.
> 
>>>Ask on the list so someone list Thomas can point you to an example setup. 
> 
> 
> 
>>>>Thanks in advantage
>>>>
>>>>Matteo
>>>>
>>>>
>>>>
> 
> 
> 
> 
> 
> 
> --
> --------------------------------------------
> IMD Ingenieurbuero fuer Microcomputertechnik
> Thomas Doerfler           Herbststrasse 8
> D-82178 Puchheim          Germany
> email:    Thomas.Doerfler at imd-systems.de
> PGP public key available at:
>      http://www.imd-systems.de/pgpkey_en.html

- --
- --------------------------------------------
IMD Ingenieurbuero fuer Microcomputertechnik
Thomas Doerfler           Herbststrasse 8
D-82178 Puchheim          Germany
email:    Thomas.Doerfler at imd-systems.de
PGP public key available at:
     http://www.imd-systems.de/pgpkey_en.html
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