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> Sd Card As Main Storage For C3000, partitioning questions
daniel3000
post Apr 8 2006, 02:16 PM
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Hello,

I plan to move all my user files to a 4GB SD card and use the internal Microdrice only for MP3 (if at all) and of course for OS and program data (hdd1, hdd2).

Now, my user data partially needs an ext2 file system (development, mutt mail files...) and partially I'd prefer vfat because of the easier accessibility from Windows PCs.
So I'm considering partitioning the card. one ext2 and one FAT32 partition.

Could someone please confirm that the follogin will work:

On Zaurus: Add an fstab entry for second partition, mount it to /mnt/card2, first partition: ext2 /mnt/card second: vfat /mnt/card2
For more transparent file access for the Zaurus apps, I'd link /mnt/card2 to a directory under /mnt/card.

But how would Windows PCs with SD card readers behave?
Just only mount the vfat partition and see that one as THE SD card? Even if it is the second partition?
Do two partitions genrally work wothout problems in USB SD card readers under Windows?

Thanks
daniel
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Jon_J
post Apr 8 2006, 02:22 PM
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Try this link, I didn't re-read it, but it has lots of info on partitioning CF & SD cards.
I think I remember that the paths shown in /mnt are different on the C3100/C3000/C1000 models.
http://www.oesf.org/index.php?title=Multip..._a_CF_/_SD_card

EDIT: another link. "Formatting a CF as ext2" (Actually talks about SD cards)
http://www.oesf.org/forums/index.php?showtopic=17725&hl=ext2
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winterkoninkje
post Apr 16 2006, 01:22 AM
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QUOTE(daniel3000 @ Apr 8 2006, 02:16 PM)
Hello,

I plan to move all my user files to a 4GB SD card and use the internal Microdrice only for MP3 (if at all) and of course for OS and program data (hdd1, hdd2).
*


Unless things have majorly changed since I last checked, any SD cards larger than 1GB will not work on the zaurus. The larger cards use a different proprietary encryption scheme which doesn't have an open driver yet. The new DRM isn't something you can just not use, but will prevent the card from working at all and cause other things to glitch up whenever the card is inserted.

I don't know whether this bug affects the larger MMC cards, but those may be an option if you don't care about the DRM (which almost noone does). But before investing in one, I would highly recommend trying the specific card out to see if it works on your zaurus. Shop around till you find a store that'll let you test them.
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icruise
post Apr 16 2006, 02:17 AM
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QUOTE(winterkoninkje @ Apr 16 2006, 04:22 AM)
Unless things have majorly changed since I last checked, any SD cards larger than 1GB will not work on the zaurus. The larger cards use a different proprietary encryption scheme which doesn't have an open driver yet.

This have indeed changed. Cresho has made a driver that will work for larger cards.

http://www.oesf.org/forums/index.php?showtopic=18523
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Cresho
post Apr 16 2006, 03:55 AM
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sd cards are originaly fat16 and not 32. ext will not be recognized in a windows based pc.
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Jon_J
post Apr 16 2006, 07:50 AM
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Try this site:
http://www.fs-driver.org/index.html
"Ext2 Installable File System For Windows"

This is intended for a computer that has both windows format and ext2/ext3 partitions on it's hard drive.
Since I don't have any Linux partitions on my windows PC, the control panal applet, (which is installed) is useless to me but,
I can read my ext2 formatted 128MB SD card in windows, using a card reader. smile.gif
I'm going to see if I can copy files from it now...
I just copied "xqt-gtk-jumbo.cramfs" (17.9mb) from my ext2 card to my desktop PC.
I don't know if windows butchers files from an ext2 filesystem. I haven't used this very much.
Attached File(s)
Attached File  drives.jpg ( 46.12K ) Number of downloads: 63
 
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iamasmith
post Apr 16 2006, 09:52 AM
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If you want read only access to ext2 and like me you don't want Windows and potentially untrusted software having write access to ext2 file systems you may want to try...

http://uranus.it.swin.edu.au/~jn/linux/explore2fs.htm

which is a user utility that doesn't install as a file system but does let you export files from ext2 file systems.

I use OpenBSD ffs for most stuff and ext2 for file systems when I want to copy something to the Windows boot that is on that same machine.. I use this to pick up the files from the ext2 dumping ground that I set up.

-Andy
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