How to make Migrate app backups compatible with our rom(and other AB roms) - Xiaomi Mi 9 SE Guides, News, & Discussion

EDIT: This guide is now not necessary, there is a mod of the app for system_root phones, and probably soon there will be official support.
Modded app (install on the rom before making backups):
https://forum.xda-developers.com/re...igrate-root-fixed-version-unofficial-t3944054
This guide is still valid, for those who have already done the backups, but they are not working.
How to make Migrate app backups compatible with our rom(and other AB roms)
I am not affiliated in anyway to this app. This is only a guide for those who want to use it to switch their apps between roms.
You are responsible if you miss anything and screw up your rom. I will not be offering any extra support.
Make sure to read and understand everything carefully before you proceed.
App:
https://play.google.com/store/apps/details?id=balti.migrate
1. Open the zip with winrar or 7zip
2. Inside the folder META-INF\com\google\android, extract the file updater-script
3. Open it with notepad/notepad++ or another text editor(if you know what you are doing)
4. Find these lines at the beginning:
Code:
ui_print("Mounting partition...");
run_program("/sbin/busybox", "mount", "/system");
run_program("/sbin/busybox", "mount", "/data");
ifelse(is_mounted("/data") && is_mounted("/system"), ui_print(""), ui_print("Mounting using self busybox...") && run_program("/tmp/mount_using_self_busybox.sh", "m"));
ifelse(is_mounted("/data") && is_mounted("/system"), ui_print("Mounted!"), abort("Mount failed! Exiting..."));
package_extract_file("prep.sh", "/tmp/prep.sh");
5. Change them to:
Code:
ui_print("Mounting partition...");
run_program("/sbin/busybox", "mount", "/system_root");
run_program("/sbin/busybox", "mount", "/data");
ifelse(is_mounted("/data") && is_mounted("/system_root"), ui_print(""), ui_print("Mounting using self busybox...") && run_program("/tmp/mount_using_self_busybox.sh", "m"));
ifelse(is_mounted("/data") && is_mounted("/system_root"), ui_print("Mounted!"), abort("Mount failed! Exiting..."));
package_extract_file("prep.sh", "/tmp/prep.sh");
6. Find these lines at the end:
Code:
ui_print(" ");
ui_print("Unmounting partitions...");
run_program("/sbin/busybox", "umount", "/system");
run_program("/sbin/busybox", "umount", "/data");
ifelse(is_mounted("/data") && is_mounted("/system"), ui_print(""), run_program("/tmp/mount_using_self_busybox.sh", "u"));
ui_print(" ");
ui_print("Finished!");
7. Change them to:
Code:
ui_print(" ");
ui_print("Unmounting partitions...");
run_program("/sbin/busybox", "umount", "/system_root");
run_program("/sbin/busybox", "umount", "/data");
ifelse(is_mounted("/data") && is_mounted("/system_root"), ui_print(""), run_program("/tmp/mount_using_self_busybox.sh", "u"));
ui_print(" ");
ui_print("Finished!");
8. Repack the file to the original position
9. Redo all of this for every migrate zip you have

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Just a quick question. I don't have Mi 9 SE. So I rely on inputs from users so that I can issue a fix.
After changing this, does the helper app work as expected? Because someone told me that helper can't seem to find the migrate cache directory.
Thanks for the information.

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For me it worked. If you need to make tests, contact me(I am on beta channel for your app in play store too)

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redispade said:
For me it worked. If you need to make tests, contact me(I am on beta channel for your app in play store too)
Click to expand...
Click to collapse
Is it still working for you ? I tried these steps and I could not get it working. I am thinking to replace "system" as "system_root" in the updater script.
basically replace this:
Code:
ui_print("Unpacking helper");
package_extract_dir("system", "/system");
package_extract_file("helper_unpacking_script.sh", "/tmp/helper_unpacking_script.sh");
set_perm_recursive(0, 0, 0777, 0777, "/tmp/helper_unpacking_script.sh");
run_program("/tmp/helper_unpacking_script.sh", "/system/app/helper", "12");
set_perm_recursive(0, 0, 0777, 0777, "/system/app/MigrateHelper");
with this:
Code:
ui_print("Unpacking helper");
package_extract_dir("system_root", "/system_root");
package_extract_file("helper_unpacking_script.sh", "/tmp/helper_unpacking_script.sh");
set_perm_recursive(0, 0, 0777, 0777, "/tmp/helper_unpacking_script.sh");
run_program("/tmp/helper_unpacking_script.sh", "/system_root/app/helper", "12");
set_perm_recursive(0, 0, 0777, 0777, "/system_root/app/MigrateHelper");

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The part you are modifying is for the helper apk. If it gives errors, you have done something wrong. If you want to replace that part, replace it with /system_root/system
Sent from my Mi 9 SE using Tapatalk

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redispade said:
The part you are modifying is for the helper apk. If it gives errors, you have done something wrong. If you want to replace that part, replace it with /system_root/system
Sent from my Mi 9 SE using Tapatalk
Click to expand...
Click to collapse
Thanks for the quick response. I tried your changes only once again before doing my change and it somehow worked.