Hello,
my application is installed on the SD-Card formatted with vfat.
The panel pc is booting from flash, mount the SD-Card, runs a few
seconds with rw on the SD-Card. Suddenly the SD-Card is mounted ro
and dmesg says something about "FAT ....". This could be repair
with a windows PC. I have tried to compile and install dosfsck
on the panel PC, but this runs not correctly or can't repair the
filesystem.
Okay, this happens if we PowerOff the Panel-PC during write access
to the SD-Card.
I think, I need a better filesystem on the SD-Card. But, the customers
have to write the Card with Windows PC. I read in the FAQ something
about ext2/ext3 for Windows as installable filesystem.
Will ext2 be more stable on a SD-Card as vfat? Runs the filesystem
check for ext2 on a Panel PC?
Re: Portux Panel PC with SD-Card and vfat
Hello,
indeed ext3 should be saver because of it's journaling system.
There are several opensource drivers, that provide ext3 support under Windows.
I tested Ext2FSD with Windows 7 Home Edition.
http://www.ext2fsd.com/
http://sourceforge.net/projects/ext2fsd/files/Ext2fsd/0.48/Ext2Fsd-0.48.exe/download
The driver comes along with a configuration tool (Ext2 Volume Manager) that needs to activate the driver before access to ext3 partitions are possible.
Open then service manager (Tools -> Service Management or F7), enable writing support for ext3 volumes and start the driver (Start button).
This program also allows you to flush buffers (F11) - I'm not sure whether this is needed or not, but I used this feature before removing my SD-Card.
This is what I did with a ext3 formatted SD-Card containing a complete linux root file system for a Portux9g20:
After activating the driver, you can access the partition as ordinary volume using windows explorer.
I created a directory containing a text file.
As said above I flushed the contents, removed the card.
Finally, I tested the content on the Portux9g20 (booting the system, reading my text file).
There is another driver that is mentioned often.
Ext2IFS
http://www.fs-driver.org/
Unfortunately, I wasn't able to install it on my system on the first move.