Setting up ramdisk with dosfs
Eugeny S. Mints
emints at ru.mvista.com
Tue Nov 9 16:23:42 UTC 2004
Greetings,
Thomas Doerfler wrote:
> Hi,
>
> AFAIK the ramdisk would work fine with the MSDOS
> filesystem, but it is not formatted :-(
Exactly. Ramdisk works fine with DOSFS since I used ramdisk during DOSFS
development:) And again - exactly - a ramdisk needs to be formatted by
any means out of RTEMS since Thomas msdos_format for RTEMS is the work
in progress (yet:).
>
> I am currently developing a msdos_format function
> which should solve this problem.
>
>
>>Hi.
>>
>>I want to use the ramdisk with dosfs but has some problems.
>>
>>I am running on a sun solaris with target ERC32. Using TSIM as simulator.
>>Want to modify the fileio sample to use ramdisk instead of ata.
>>
>>My questions are:
>>
>>What should I initialize? (I added RAMDISK_TABLE_ENTRY to the Device table
>>and this seems to work fine.)
In addition to the RAMDISK_TABLE_ENTRY you need to define at least one
ramdisk itself - rtems_ramdisk_configuration[] array of type
rtems_ramdisk_config (please, see
cpukit/libblock/include/rtems/ramdisk.h - there are good comments
there). The rtems_ramdisk_configuration[] array is expected to be
exported by a bsp.
It seems one time (about june of 2002) I sent Angelo Fraietta <angelo_f
at bigpond dot com> the ramdisk application example.
2Angelo: If it possible, please re-post the example on the list.
Regards,
Eugeny
>>I am trying to run rtems_ide_part_table_initialize(dev) but it returns '25'
>>and 'not a char device' (the ramdisk is accessed). Must I use ide_part?
>>I really could use a step by step instruction how to init and mount a
>>ramdisk and use msdos with it.
>>
>>Any information would be greatly appreciated.
>>
>>Regards
>>Daniel Gustavsson
>>
>
>
> --------------------------------------------
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> Thomas Doerfler Herbststrasse 8
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> email: Thomas.Doerfler at imd-systems.de
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