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opu 웃
Asked: 2014-07-03 22:20:42 +0800 CST

All folders and files in SD card and USB drive appearing as locked!

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I am facing a wired problem and that is whenever I insert any USB drive or SD card in my computer, all folder and files inside it appear as locked! And therefore I can't crate any new folder and delete any folder from sd card or usb drive! I don't know why it is happening and how to solve this. Anybody please help me.

Locked files and folders

14.04

1 Answers

  1. Type in:

    sudo su

    enter your password.

    Type in:

    chown <your_user_name> <disk_name>

    type:

    exit

    EDIT:

    If your media is mounted read-only, it is probably needed to check group permissions:

    First thing to do is to check the permissions on the hardware device mounting your card. You'll need to find the device name. To do this run the following command:

    sudo fdisk -l

    Your device will probably be something along the lines of /dev/sdb1, it can be the SD Reader /dev/mmcblk0p1.

    Next you need to get the permissions on this device:

    sudo ls -l /dev/mmcblk0p1

    Replace "/dev/mmcblk0p1" with your device location.

    You need to be a member of group disk to be able to write to the SD card. You can check which groups your a member of with

    groups username

    so then:

    sudo usermod -G --append disk username

    This adds the group disk to your user's groups, which should allow you to now read & write to the SD card.

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