Android模拟器错误权限错误写入SD卡

Question

Im having an error when uploading data to the sdcard of the emulator

Failed to push selection: Read-only file system

I can see the sdcard on the DDMS file explorer

so I have seen answers to this problem suggesting to do in adb shell:

# mount -o remount rw /sdcard
mount: Invalid argument

//so i check with mount only
  # mount
rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
none /acct cgroup rw,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,cpu 0 0
/dev/block/mtdblock0 /system yaffs2 ro 0 0
/dev/block/mtdblock1 /data yaffs2 rw,nosuid,nodev 0 0
/dev/block/mtdblock2 /cache yaffs2 rw,nosuid,nodev 0 0

so what im i missing?, thanks!

Answer 1

There is no sdcard mounted. Make sure you've added sdcard to your emulator.

Answer 2

In case it helps someone... I figured out the reason behind this problem. When your emulator OS boots, go to Developer Settings and enable USB debugging . Then try again:

adb shell
mount -o remount rw /sdcard

Hope this works!