[U-Boot-Users] Reading mediacard compressed files

[Junior <ejr@inbox.com>]

> -----Original Message-----
> From: gerald.vanbaren at smiths-aerospace.com
> Sent: Fri, 13 Jul 2007 11:41:34 -0400
> To: ejr at inbox.com
> Subject: Re: [U-Boot-Users] Reading mediacard compressed files
> 
> Junior wrote:
>>> -----Original Message-----
>>> From: joravec at drewtech.com
>>> Sent: Fri, 13 Jul 2007 11:10:14 -0400
>>> To: u-boot-users at lists.sourceforge.net
>>> Subject: Re: [U-Boot-Users] Reading mediacard compressed files
>>> 
>>> "Junior" <ejr@inbox.com> wrote in message
>>> news:331ACB2C846.00000166ejr at inbox.com...
>>>> Hi All,
>>>> I have a media card that has one fat partition with a testfile.gzip
>>>> (unrelated to the kernel).
>>>> I would like to read this file and uncompress it to SD memory.
>>>> Can this be done and if so, how do I achieve this?
>>>> I've enabled FAT support but fatinfo requires "dev[:part]" and I'm not
>>>> sure what to
>>>> specify as my device and partition.
>>> Typically "fatinfo mmc 0". The command is of the format "fatinfo
>> 
>> 
>> Thanks, That did it:
>>                  Partition 1: Filesystem: FAT32 "NO NAME    "
>> 
>> But how do I read from this partition then do an uncompress?
> 
> Hi Junior,
> 
> Your original message says "uncompress it to SD memory."  If you are
> expecting to write the resulting data back to your media card (my
> interpretation of "SD memory"), I don't think you can get there without
> a lot of work.
> 
> IIRC, the file systems supported by u-boot are read-only.  The
> expectation is that, if you want to write to a file system, you should
> us an operating system, not a boot loader.

I'm sorry, By SD I really ment SDRAM. Perhaps I shouls simply say "uncompress".
I have 32M of ram and I'm trying to read a file into ram and uncompress it.
I'm not interested in writing to the media card.

Thanks,
--Jr.





> gvb