Problem to save file on the hard disk! What I have to set to do it ?
Thomas Doerfler
Thomas.Doerfler at imd-systems.de
Thu Mar 16 08:28:08 UTC 2006
Matteo,
I got no idea, what might go wrong on your machine. According to your
answer, the partiton table is read in correctly. Can you do the
following for me:
under linux, can you log in as root and perform the following commands:
# dd if=/dev/hda of=hda_partition_table bs=512 count=1
# dd if=/dev/hda2 of=hda2_info bs=512 count=22000
# gzip <hda2_info >hda2_info.gz
This will read the partition table and the start of hda2 (including the
boot sector, the FAT and some file contents of that partition) from your
disk. If you send me these two files (as private mail) I can try to
analyze the info stored there.
Please note, with the above commands, some file content of your harddisk
will be sent to me aswell, so please do it only if you do not have
private or confidential information on this partiton.
wkr,
Thomas.
Matteo wrote:
> Hi Thomas,
>
> The result after reading the partition table is "RESULT = 0"
> I create the /mnt/hda1 too, with linux I can write and mount without problem on
> hda1(FAT16). So why with RTEMS I can't do it ?
>
> Have you some idea ?
>
> Thanks
>
>
>
> Scrive "Thomas Doerfler (nt)" <Thomas.Doerfler at imd-systems.de>:
>
>
>>-----BEGIN PGP SIGNED MESSAGE-----
>>Hash: SHA1
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>>Matteo,
>>
>>one other question:
>>
>>After reading the partition table, the "fileio" sample will print a
>>result code. Can you tell me what is printed there as a result?
>>
>>wkr,
>>Thomas.
>>
>>Matteo schrieb:
>>
>>>I have two FAT partition;
>>>- one is hda2, is for " windows xp " and is FAT32(is about 20GB),
>>>- another one is hda1, is a free memory FAT16(is about 2.8 GB).
>>>I can mount hda2 and hda1 and write a file on them without problem.
>>>
>>>What's the problem about your opinion?
>>>May be I have to set some special options in my Grub(my linux bootloader)
>>
>>when I
>>
>>>have to launch the example?
>>>
>>>Really thanks in advance.
>>>
>>>Matteo
>>>
>>>
>>>
>>>Scrive "Thomas Doerfler (nt)" <Thomas.Doerfler at imd-systems.de>:
>>>
>>>
>>>
>>>>Matteo,
>>>>
>>>>it really looks like a difficult case to me :-((
>>>>
>>>>What is confusing me: Your FAT partition has a size of about 20GB. This
>>>>is MUCH to big for a FAT16 partition, so I would guess, that a program
>>>>that is asked to format the disk should complain about this.
>>>>
>>>>In your last posts, you have sent me information about what is written
>>>>in the partition table for partition hda1. For clarity, I have to ask
>>>>again: did you also:
>>>>
>>>>- format the partition
>>>>- mount it under linux to some mount point
>>>>- write files to it
>>>>
>>>>and everything without problems?
>>>>
>>>>wkr,
>>>>Thomas.
>>>>
>>>>
>>>>Matteo schrieb:
>>>>
>>>>
>>>>>Thomas,
>>>>>
>>>>>Yes I can access to windows from linux.
>>>>>I created hda1 using gparted formatting hda1 as FAT16.
>>>>>Infact if I use gparted, like you can see, it says that is FAT16, but if
>>
>>I
>>
>>>>use
>>>>
>>>>
>>>>>only "cfdisk" says that is only linux.
>>>>>I try to see my memory using also qtparted and It says me that hda1 is
>>>>
>>>>FAT16
>>>>
>>>>
>>>>>partition.
>>>>>I don't know why "cfdisk -l /dev/hda" don't shows that hda1 is FAT16.
>>>>>But both gparted both qtparted program shows that hda1 is a FAT16 !
>>>>>
>>>>>Have you some idea about my problem ?
>>>>>
>>>>>Really Thanks in advance
>>>>>
>>>>>Matteo
>>>>>
>>>>>
>>>>>Scrive "Thomas Doerfler (nt)" <Thomas.Doerfler at imd-systems.de>:
>>>>>
>>>>>
>>>>>Matteo,
>>>>>
>>>>>I am a bit confused, your listing shows, that /dev/hda1 is a Linux ext3
>>>>>partition, but you write that gparted shows it as FAT16. But /dev/hda2
>>>>>looks fine in the partition table. can you access the filesystem on
>>>>>/dev/hda2 from linux?
>>>>>
>>>>>Thomas.
>>>>>
>>>>>Matteo schrieb:
>>>>>
>>>>>
>>>>>
>>>>>>Ok this is the result of the command "fdisk -l /dev/hda"
>>>>>
>>>>>>Disk /dev/hda: 40.0 GB, 40007761920 bytes
>>>>>>255 heads, 63 sectors/track, 4864 cylinders
>>>>>>Units = cilindri of 16065 * 512 = 8225280 bytes
>>>>>
>>>>>>Dispositivo Boot Start End Blocks Id System
>>>>>>/dev/hda1 2678 3014 2706952+ 83 Linux
>>>>>>/dev/hda2 1 2677 21502971 c W95 FAT32 (LBA)
>>>>>>/dev/hda3 3015 4784 14217525 83 Linux
>>>>>>/dev/hda4 4785 4864 642600 5 Esteso
>>>>>>/dev/hda5 4785 4864 642568+ 82 Linux swap /
>>>>>
>>>>>Solaris
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>looking with gparted I have the result that, hda1 is "FAT16", hda2 is
>>>>>
>>>>>"FAT32",
>>>>>
>>>>>
>>>>>
>>>>>>hda3 is "ext3", hda4 is "exetended", hda5 is "linux swap".
>>>>>
>>>>>>I created hda1 with FAT16 thinking to resolve the problem, but from the
>>>>>
>>>>>fileio
>>>>>
>>>>>
>>>>>
>>>>>>example I have always the same error,
>>>>>>" fsmount: mounting of "/dev/hda1" to "/mnt/hda1" failed: No such file or
>>
>>>>>>directory " but now hda1 is FAT16 so it could be right for RTEMS, but it
>>>>>
>>>>>isn't.
>>>>>
>>>>>
>>>>>
>>>>>>Why ?
>>>>>
>>>>>>Can you help me ?
>>>>>
>>>>>>Thanks advanced
>>>>>
>>>>>>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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--
--------------------------------------------
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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