SD-card formatting

Denys Vlasenko vda.linux at
Sat May 21 18:51:53 UTC 2011

On Friday 20 May 2011 11:39, Peter Boudewijns wrote:
> Hello All,
> I've designed an embedded board with an ATMEL AT91SAM9260 (rev B) based 
> on the reference-design from Atmel and an Olimex SAM9_L9260 devellopment 
> board. I'm using the 2.6.31 kernel and a statically linked Busybox (v 
> 1.18.3).
> When I try to format a 1GB SD-card (with fdisk) all looks allright. I 
> create 1 partition spanning the entire SD-card, BUT when makeing a 
> filesystem on it (EXT2 or EXT3) I get an error that makes the processor 
> reboot (I don't know exactly which exception occurs, nor do I know which 
> vector is used to make the jump, all vectors are set to 0 by the way).
> When I change the partition-settings via fdisk (heads, sectors, 
> cylinders) to a combination of 1/4 of the total disk capacity all goes well.
> Does anyone recognize this problem and hopefully know a solution?

Please provide more data. Such as:

* output of fdisk -l
* output of hexdump -C </dev/YOUR_DISK | head -100
* the exact command line you use to make ext2 fs
* does the same happens if you try to make e2fs in a file, not a partition?
* etc...


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