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Thread: Ext4 sd card mounts as read-only

  1. #1
    Join Date
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    Ubuntu 12.10 Quantal Quetzal

    Ext4 sd card mounts as read-only

    I have a 2GB SD card, formatted to ext4 (have tried ext2 and ext3 as well, but it does not change the behaviour) and whatever I do, it is mounted as read only for user, root can write to it.

    I have tried both hot plugging, and using fstab to mount it, it does the same either way. Curiously, if I format it to FAT32 it mount as rw for all users.

    Any help on this matter would be greatly appreciated.
    The early bird gets the worm, but the second mouse gets the cheese.

  2. #2
    Join Date
    Dec 2008
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    Ubuntu 10.04 Lucid Lynx

    Re: Ext4 sd card mounts as read-only

    I am definatley no expert. but have you tried using the chown command to change the ownership of the device??
    Avoid the Gates of Hell. Use Linux.

  3. #3
    Join Date
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    Re: Ext4 sd card mounts as read-only

    Yes, I have tried chown to no avail. Thanks anyway.
    The early bird gets the worm, but the second mouse gets the cheese.

  4. #4
    Join Date
    Aug 2006
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    252

    Re: Ext4 sd card mounts as read-only

    'ls -l' where it is mounted, whats it say?
    'mount' whats that say?
    maybe through in a "ls -ln" and "id -u username" for good measure and double check.


    hey did you turn journaling off for the card? i dont think you should use a journaling fs with a compactflash card. maybe should keep it fat anyway ? or ext2.

  5. #5
    Join Date
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    Ubuntu 12.10 Quantal Quetzal

    Re: Ext4 sd card mounts as read-only

    Thanks, I have already double checked all that, and tried ext2, same problem. I don't want to use FAT as it loses file permissions.
    The early bird gets the worm, but the second mouse gets the cheese.

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