Why doesn't a SD card work? [answered]

answered 2013-12-27 00:42:39 +0300

palnap
291 ●7 ●6 ●9

updated 2013-12-27 00:43:30 +0300

The best way is to format your SD Card with BTRFS or Ext4 filesystem. If you have enabled developer mode you can format the SD card this way (as root) :

mkfs.btrfs /dev/mmcblk1p1

Please note all SD card data will be erased

You also need to modify /usr/sbin/mount-sd.sh like that :

#!/bin/bash

SDCARD=/dev/sdcard
DEF_UID=$(grep "^UID_MIN" /etc/login.defs |  tr -s " " | cut -d " " -f2)
DEF_GID=$(grep "^GID_MIN" /etc/login.defs |  tr -s " " | cut -d " " -f2)
DEVICEUSER=$(getent passwd $DEF_UID | sed 's/:.*//')
MNT=/run/user/$DEF_UID/media/sdcard

if [ "$ACTION" = "add" ]; then
    if [ -b /dev/mmcblk1p1 ]; then
        ln -sf /dev/mmcblk1p1 $SDCARD
    elif [ -b /dev/mmcblk1 ]; then
        ln -sf /dev/mmcblk1 $SDCARD
    else 
        exit $?
    fi  
    su $DEVICEUSER -c "mkdir -p $MNT"
    case "${ID_FS_TYPE}" in
        vfat|ntfs|exfat)
            mount $SDCARD $MNT -o uid=$DEF_UID,gid=$DEF_GID
            ;;
        *)
            mount $SDCARD $MNT
            chown $DEVICEUSER: $MNT
            ;;
    esac
else
    umount $SDCARD

    if [ $? = 0 ]; then
        rm -f $SDCARD
    else
        umount -l $MNT
        rm -f $SDCARD
    fi
fi