microSD && ext3 file system
ed at kapitein.org
Tue Apr 3 19:06:40 CEST 2012
On 04/02/2012 08:49 PM, Matthias Apitz wrote:
> El día Monday, April 02, 2012 a las 08:32:51PM +0200, Jiří Pinkava escribió:
>> after umout is the filesystem broken? I have experience where are writen
>> some pseudorandom data, which overiwrite even forst sector (after
>> restart disk partition are not show, SD card is "unformated").
>> Is this you case?
> Not exactly. It seems that through writing files to the ext3 file system
> it gets broken; and after this "fdisk -l" does not show the partition
> btw: when I format this with mkfs.vfat, all is fine; but the space is
> only 1GB while the partition is around 4GB:
> root at om-gta02 ~ # fdisk -l /dev/mmcblk0
> Disk /dev/mmcblk0: 3953 MB, 3953131520 bytes
> 4 heads, 16 sectors/track, 120640 cylinders
> Units = cylinders of 64 * 512 = 32768 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> Disk identifier: 0x0aecb0ac
> Device Boot Start End Blocks Id System
> /dev/mmcblk0p1 1 120640 3860472 83 Linux
> root at om-gta02 ~ # df -kh /dev/mmcblk0p1
> Filesystem Size Used Available Use% Mounted on
> /dev/mmcblk0p1 1022.0M 394.0M 627.9M 39% /media/card
> Why is this?
A while ago i read this article on .
Perhaps this will help you to solve your problem.
( i have a hard time finding a working uSD card too )
Is your card on the supported card list  ?
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