micro-SD problem on GTA02A5

Willie Chen willie_chen at openmoko.com
Wed Jan 23 20:21:45 CET 2008

Andy Green wrote:
> Hash: SHA1
> Somebody in the thread at some point said:
>> Hi all,
>>> How do I test micro-SD in our newest kernel?
>> I try two SanDisk micro-SD cards. One is 128MB and Another is 512MB. The
>> 512MB card is successful mounted file system. But 128MB card will fail.
> Hiya Willie -
> First most of that log is SDIO for WLAN from Sameo's patches, it's fine.
> Second, the message that is worrying you is probably
> [   89.380000] VFS: Can't find a valid FAT filesystem on dev mmcblk0.
> [   89.390000] FAT: bogus number of reserved sectors
> [   89.390000] VFS: Can't find a valid FAT filesystem on dev mmcblk0.
> but this is also fine.  In the Windows world many Flash devices do not
> have a partition table, they stick the filesystem directly to the raw
> block device, ie, like it was written on /dev/sda instead of /dev/sda1
> The kernel is trying first to mount "/dev/sda" (ie, /dev/mmcblk0) for
> that reason and failing because there is a partition table there and not
> a filesystem.  Then it tries /dev/mmcblk0p1 (first partition)
> and it is okay and doesn't make a message for it... you can just find it
> at /media/card
> If that isn't the whole problem, please send more about it.
> - -Andy
> Version: GnuPG v1.4.7 (GNU/Linux)
> Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
> iD8DBQFHlvKZOjLpvpq7dMoRAsS7AJ9Eshk18oXO15VcAcBlqCTz4+ydYwCeO2hj
> y2BQ1OCB1cnCIT7/3xMSXao=
> =6kUS
Hi Andy,

I test the two micro-SD cards (128MB and 512MB) and I can browse the 
files in both micro-SD cards. Thanks for your help.


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