Fix A-only addon.d retaining PREINITDEVICE on 30300+

- broken after 742913ebcb so use get_flags to be more futureproof

native/src/boot/bootimg.cpp

@@ -292,7 +292,7 @@ static int find_dtb_offset(const uint8_t *buf, unsigned sz) {
         auto fdt_hdr = reinterpret_cast<const fdt_header *>(curr);
 
         // Check that fdt_header.totalsize does not overflow kernel image size or is empty dtb
-        // https://github.com/torvalds/linux/commit/7b937cc243e5b1df8780a0aa743ce800df6c68d1
+		// https://github.com/torvalds/linux/commit/7b937cc243e5b1df8780a0aa743ce800df6c68d1
         uint32_t totalsize = fdt_hdr->totalsize;
         if (totalsize > end - curr || totalsize <= 0x48)
             continue;
@@ -913,6 +913,8 @@ void repack(Utf8CStr src_img, Utf8CStr out_img, bool skip_comp) {
         file_align();
     }
 
+    off.tail = lseek(fd, 0, SEEK_CUR);
+
     // Proprietary stuffs
     if (boot.flags[SEANDROID_FLAG]) {
         xwrite(fd, SEANDROID_MAGIC, 16);
@@ -923,7 +925,6 @@ void repack(Utf8CStr src_img, Utf8CStr out_img, bool skip_comp) {
         xwrite(fd, LG_BUMP_MAGIC, 16);
     }
 
-    off.tail = lseek(fd, 0, SEEK_CUR);
     file_align();
 
     // vbmeta

scripts/addon.d.sh

@@ -137,7 +137,9 @@ case "$1" in
     # Back up PREINITDEVICE from existing partition before OTA on A-only devices
     if ! $backuptool_ab; then
       initialize
-      RECOVERYMODE=false
+      # Suppress ui_print for this stage
+      ui_print() { return; }
+      get_flags
       find_boot_image
       $MAGISKBIN/magiskboot unpack "$BOOTIMAGE"
       $MAGISKBIN/magiskboot cpio ramdisk.cpio "extract .backup/.magisk config.orig"