Locus deactivates the sd-card and crashes under CM 10.2

[franc]

Hello

I just installed the Cyanogenmod 10.2 on my SGS2 as a try-out and installed locus.
But something is weird: I have the locus folder still on the external sd-card (64 GB, extFAT) which is named now "/storage/sdcard1" instead of previously (under 4.1.2) "/storage/extSdCard".
When I start locus, I see that initially it seems all right, locus reads from the locus folder from this sdcard, but after maybe one second there is a message "Problem with data (Points/Tracks)" and locus crashes if I try to restore (StackOverflowError / File.java / fixSlashes / Line 185) and restarts without any settings.
In fact, the sd-card is not anymore visible (in the FileManager), after locus tried to read from it.

I don't know how locus is able to throw out or deactivate the sd-card, but this is what is done, the external sd-card is not anymore visible, I have to reboot my phone to get it back.
I have other apps, which use this external sd-card without any problems, even big files, though!

I reinstalled locus, after renaming the locus-folder and then locus works, but when I copy one of my map-files (vector or online) into the maps-folders, the problem begins again.

What could I do?
Is this related to the different name of the external sd-card?
Then how could I change it?

This is a weird issue, and in the CM forum, they don't know about this, so I ask here.

Thank,
frank

EDIT: I will try now, to reformat the sd-card from extFAT to FAT32, with the drawback that maxFileSize is 4 GB (which I haven't anyway. I guess, that CM 10.2 is buggy with extFAT, so when locus tries to open these big map-files the system has an issue.
Why on earth this is not with other apps, I don't know. E.g. I have "Aard", using several 1 GB Files for wikipedia without problems.
I guess this is a bug in extFAT system of CyanogenMod 10.2
Will post here if it works with FAT32...
...WORKS!!!

[Christian]

You can format the card within clockwork also with sizes over 4GB.
You should not use extFat for a user data partition. Problems are well known.

[franc]

I formatted the card with Dos tools to FAT32 and now it works.
What formatting does CWM do?

[Christian]

I lost data on card two times. Same error as you. Card was formatted in PC with fat32.
A hint in a forum said formatting the card in phone should work. No worries since than.
I don't know the difference.

[berkley]

Yep.
Always format even a brand new micro SD directly from the phone.

That info would have saved me to buy three micro SDs in on week...

[franc]

Always format even a brand new micro SD directly from the phone...

Moment, if you format the sd-card in the phone with 4.1.2, you will get extFAT as FS, not FAT32.
There is no choice which FS I would like, in the phone.
This was my problem.
I thought automatically that this is the best system for the phone, but it is not for CM-ROMs. They are still buggy with extFAT I think.

[Christian]

No. If you format the card in phone through Android GUI you will get a data partition over the whole card in FAT32 readable by Windows.
If you use clockwork you can have a partition with extFAT for Apps on the card ( not easily readable by windows) and a swap partition in extFAT AND a data partition in FAT32.

Tested and proofed with CM 7.x and CM 10.x

[franc]

No. If you format the card in phone through Android GUI you will get a data partition over the whole card in FAT32 readable by Windows.
If you use clockwork you can have a partition with extFAT for Apps on the card ( not easily readable by windows) and a swap partition in extFAT AND a data partition in FAT32.

Ah, so is that!
I have probably with CWM formatted then. I recall me not very good on it.
Thanks for clarification.