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

[Thomas Doerfler (nt)]

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Matteo,

Matteo schrieb:
> Ok hda3 is "ext3", but I have a window "FAT" on hda1 and hda2, so I could save
> my file in this partitions? 

yes, this should be possible.

> But I see from the error message that RTEMS can't mount all my partition hda1,2
> (FAT) for windows and hda3,4 (ext3) for linux.

can you boot linux on your system, log in as root and send me the output
of the command   "fdisk -l /dev/hda" ? Maybe the type of your FAT
partitions is ounknown to RTES or your FAT partitions are located in an
extended partition (most unlikely).

> Can you help to save a file in one of this partitions ?
> Is there any way to save on a "ext3" partitions ?(Because I have to test RTEMS
> on some linux systems and I'm afraid they are all "ext3"!)

Currently there is no RTEMS support for ext3 filesystems, so sorry, this
will not work.

wkr,
Thomas.

> 
> 
> 
> Scrive "Thomas Doerfler (nt)" <Thomas.Doerfler at imd-systems.de>:
> 
> 
> 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

- --
- --------------------------------------------
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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