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MicroSD card with btrfs mounted but not writable (by user) [not relevant]

asked 2015-05-12 17:58:48 +0300

Pake gravatar image

updated 2015-05-17 02:36:01 +0300

chemist gravatar image

Installed a new microSD card (64GB Sandisk mSDXC UHS-1) and formatted to btrfs using:

mkfs.btrfs -O ^extref -f /dev/mmcblk1

After reboot the sdcard is mounted under /media/sdcard/<uuid> but I cannot write to it (create a new folder in File Browser, etc.).</uuid>

I found a statement that this should now be corrected in the latest versions:

https://together.jolla.com/question/1112/bug-sd-card-formatted-to-ext4btrfs-is-not-mounted-automatically/?answer=46356#post-id-46356

Seems it's broken now (in 1.1.4.29)..???

Any solutions are very welcome!

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The question has been closed for the following reason "question is not relevant or outdated" by chemist
close date 2015-05-17 02:35:48.895956

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Have you checked if the file/folder permissions are in your favour?

chemist ( 2015-05-13 11:35:28 +0300 )edit

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answered 2015-05-14 23:42:36 +0300

Pake gravatar image

updated 2015-05-16 12:31:39 +0300

Yes, it seems that it was permission related so, thank you chemist! :)

After chown nemo:nemo /media/sdcard/UUID it now works normally.

And no need to make a partition first because it's btrfs.

It would be good if the system would set the correct file permissions for the mount point the first time the sdcard is recognized, so maybe that could be added to the scripts responsible for it.

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answered 2015-05-13 03:23:25 +0300

jo77ah gravatar image

First of all, you probably want to partition your card with i.e parted or fdisk. And then format /dev/mmcblk1p0 (first partition).

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Not with btrfs, there you want to format /dev/mmcblk1 and setup subvolumes if need be.

chemist ( 2015-05-13 11:34:41 +0300 )edit

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Asked: 2015-05-12 17:58:48 +0300

Seen: 817 times

Last updated: May 16 '15