已Root的Android Kitkat设备用Lucky Patcher无法迁移Facebook至SD卡的解决方法

Hey there, let's work through this Facebook migration issue you're facing. I've helped several users with similar problems on rooted KitKat devices, so here are some targeted solutions to try:

1. Verify Lucky Patcher's Root Access & Version #

• First, double-check that Lucky Patcher has full Root privileges: Open the app and look for the "Root access granted" message at the top. If it's missing, head to your Root management tool (like SuperSU) and confirm Lucky Patcher is allowed full access.
• Update Lucky Patcher to the latest stable version: Older builds often have compatibility bugs with newer app signatures (like Facebook's), so updating might resolve the migration error.

2. Modify System Mount Configuration (Core Fix) #

Facebook enforces strict mounting restrictions that can block migration. We can bypass this by editing the system's mount settings:

1. Launch a Root-enabled file manager (e.g., ES File Explorer with Root mode turned on) and navigate to /system/etc/vold.fstab.
2. Backup this file first (copy it to your SD card or internal storage) to avoid breaking your system if something goes wrong.
3. Open vold.fstab in a text editor and find the line that defines your SD card mount. It’ll look something like this:

   dev_mount sdcard /storage/sdcard1 auto /devices/platform/mmc_host/mmc1/mmc1:0001/block/mmcblk1
   

4. Add the allow_all parameter to the end of the line, so it becomes:

   dev_mount sdcard /storage/sdcard1 auto /devices/platform/mmc_host/mmc1/mmc1:0001/block/mmcblk1 allow_all
   

5. Save the file, reboot your device, then try migrating Facebook with Lucky Patcher again.

3. Split Facebook's APK Before Migration #

Large apps like Facebook often have tightly coupled components that prevent direct migration. Try splitting the APK first:

1. In Lucky Patcher, locate Facebook, tap it, then select Menu of patches > Split APK into parts.
2. Choose a save path on your SD card, wait for the split to finish.
3. Uninstall the original Facebook app, then install the split APK files. This version should either default to SD card storage or be migratable via Lucky Patcher.

4. Check SD Card Format & Permissions #

• Ensure your SD card uses FAT32 or exFAT: KitKat has poor support for NTFS, which can cause migration failures. Back up your SD card data, then format it to FAT32 using a computer.
• Grant full read/write permissions to your SD card: Use your Root file manager to navigate to the SD card root directory, set its permissions to rwxrwxrwx, or enable "Full access to SD card" in Lucky Patcher’s settings.

5. Alternative: Use Link2SD If Lucky Patcher Fails #

If none of the above work, Link2SD (another Root-only tool) often handles stubborn apps like Facebook better:

1. Install Link2SD, grant it Root access.
2. Find Facebook in the app list, tap it, then select Link to SD card > Link app and data.
3. Follow the on-screen prompts, reboot your device, and Facebook should be linked to your SD card.

内容的提问来源于stack exchange，提问作者Abdullah Mamun-Ur- Rashid