修改super.img 编辑super 提取分区镜像

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将Android sparse image格式转换为raw image

1. simg2img super.img   super.img.raw

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1.提取 system分区
有两个工具，一个是Android项目中的 lpunpack, 另一个大神的imjtoo

1. lpunpack --partition=system super.img.raw
   
2. lpunpack --partition=vendor super.img.raw
   
3. lpunpack --partition=product super.img.raw
   
4. 提取所有
   
5. lpunpack super.img.raw

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limgtool的命令为

1. ./imjtool.ELF64 super.img.raw extract
   
2. MMapped: 0x7f460c400000, imgMeta 0x7f460c401000
   
3. liblp dynamic partition (super.img) - Blocksize 0x1000, 3 slots
   
4. LP MD Header @0x3000, version 10.2, with 10 logical partitions on block device of 8704 GB, at partition super, first sector: 0x800
   
5. Partitions @0x3100 in 3 groups:
   
6.         Group 0: default
   
7.         Group 1: qti_dynamic_partitions_a
   
8.                 Name: odm_a (read-only, Linux Ext2/3/4/? Filesystem Image, @0x100000 spanning 1 extents of 1 MB) - extracted
   
9.                 Name: product_a (read-only, Linux Ext2/3/4/? Filesystem Image, @0x300000 spanning 1 extents of 474 MB) - extracted
   
10.                 Name: system_a (read-only, Linux Ext2/3/4/? Filesystem Image, @0x1de00000 spanning 1 extents of 5 GB) - extracted
    
11.                 Name: system_ext_a (read-only, Linux Ext2/3/4/? Filesystem Image, @0x15f600000 spanning 1 extents of 473 MB) - extracted
    
12.                 Name: vendor_a (read-only, Linux Ext2/3/4/? Filesystem Image, @0x17d000000 spanning 1 extents of 2 GB) - extracted
    
13.         Group 2: qti_dynamic_partitions_b
    
14.                 Name: odm_b (read-only,  empty) - extracted
    
15.                 Name: product_b (read-only,  empty) - extracted
    
16.                 Name: system_b (read-only,  empty) - extracted
    
17.                 Name: system_ext_b (read-only,  empty) - extracted
    
18.                 Name: vendor_b (read-only,  empty) - extracted
    
19. 
    
20. 
    
21. 如果遇到错误，请用sudo执行
    

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修改system.img为可写

1. fallocate -l 2G system.img
   
2. /sbin/resize2fs system.img 2G

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看实际的system.img的大小，适当大一些
6G

3.0 移除共享块
如果报错 couldn’t mount RDWR because of unsupported optional features (4000)
4000特性就是 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS

可以用下面的命令 去掉

1. e2fsck -y -E unshare_blocks  system.img

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也可以检查是否有这个feature

1. /sbin/dumpe2fs vendor_a.img
   
2. ...
   
3. Filesystem features:      ext_attr dir_index .... extra_isize shared_blocks

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挂载

1. mount -t ext4 -o loop system.img system
   

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编辑 system目录下的文件

卸载 system 目录

1. umount system
   

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修改文件系统错误

1. e2fsck -yf system.img

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让system.img占用尽可能小的空间

1. resize2fs -M system.img
   
2. e2fsck -yf system.img

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. 查看真实分区大小

1. stat -c '%n %s' system.img
   
2. 
   
3. stat -c '%n %s' *
   
4. product.img 1596944384
   
5. system.img 1128718336
   
6. vendor.img 544976896

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写回

1. lpmake --metadata-size 65536 --super-name super --metadata-slots 1
   
2. --device super:4294967296
   
3. --group main:3139354624
   
4. --partition system:readonly:1128718336:main --image system=./system.img
   
5. --partition vendor:readonly:544976896:main --image vendor=./vendor.img
   
6. --partition product:readonly:1596944384:main --image product=./product.img
   
7. --sparse --output ./super.new.img
   
8. 
   
9. group这里是所有分区的文件大小加起来的和
   

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–metadata-slots 要跟 imjtool 工具输出的一样
实际, device-size设置为8G

1. lpmake --metadata-size 65536    --device-size=8589934592   --metadata-slots=3   
   
2. --group=qti_dynamic_partitions_a:8053952512   
   
3. --partition=odm_a:none:1470464:qti_dynamic_partitions_a   
   
4. --partition=product_a:none:407822336:qti_dynamic_partitions_a   
   
5. --partition=system_a:none:4835311616:qti_dynamic_partitions_a  
   
6. --partition=system_ext_a:none:496226304:qti_dynamic_partitions_a   
   
7. --partition=vendor_a:none:2313121792:qti_dynamic_partitions_a   
   
8. --image=odm_a=./odm_a.img  --image=product_a=./product_a.img  --image=system_a=./system_a.img  --image=system_ext_a=./system_ext_a.img   --image=vendor_a=./vendor_a.img   
   
9. --group=qti_dynamic_partitions_b:0  
   
10. --partition=odm_b:none:0:qti_dynamic_partitions_b  
    
11. --partition=product_b:none:0:qti_dynamic_partitions_b  
    
12. --partition=system_b:none:0:qti_dynamic_partitions_b  
    
13. --partition=system_ext_b:none:0:qti_dynamic_partitions_b  
    
14. --partition=vendor_b:none:0:qti_dynamic_partitions_b  
    
15. --image=odm_b=./odm_b.img  --image=product_b=./product_b.img  --image=system_b=./system_b.img  --image=system_ext_b=./system_ext_b.img  --image=vendor_b=./vendor_b.img  
    
16. --sparse  --output /media/3/tmp/super.new.img
    
17. 
    
18. lpmake I 10-14 19:06:49 11155 11155 builder.cpp:1031] [liblp]Partition odm_a will resize from 0 bytes to 1470464 bytes
    
19. lpmake I 10-14 19:06:49 11155 11155 builder.cpp:1031] [liblp]Partition product_a will resize from 0 bytes to 407822336 bytes
    
20. lpmake I 10-14 19:06:49 11155 11155 builder.cpp:1031] [liblp]Partition system_a will resize from 0 bytes to 4835311616 bytes
    
21. lpmake I 10-14 19:06:49 11155 11155 builder.cpp:1031] [liblp]Partition system_ext_a will resize from 0 bytes to 496226304 bytes
    
22. lpmake I 10-14 19:06:49 11155 11155 builder.cpp:1031] [liblp]Partition vendor_a will resize from 0 bytes to 2313121792 bytes
    
23. Invalid sparse file format at header magic
    
24. Invalid sparse file format at header magic
    
25. Invalid sparse file format at header magic
    
26. Invalid sparse file format at header magic
    
27. Invalid sparse file format at header magic
    
28. Invalid sparse file format at header
    
29. Invalid sparse file format at header
    
30. Invalid sparse file format at header
    
31. Invalid sparse file format at header
    
32. Invalid sparse file format at header

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1. lpmake --metadata-size 65536\
   
2. --device-size=4294967296\
   
3. --metadata-slots=3\
   
4. --group=google_system_dynamic_partitions_a:2222931968\
   
5. --partition=odm_a:none:700416:google_system_dynamic_partitions_a\
   
6. --partition=product_a:none:266579968:google_system_dynamic_partitions_a\
   
7. --partition=system_a:none:1363767296:google_system_dynamic_partitions_a\
   
8. --partition=system_ext_a:none:359391232:google_system_dynamic_partitions_a\
   
9. --partition=vendor_a:none:232493056:google_system_dynamic_partitions_a\
   
10. --image=odm_a=./odm_a.img\
    
11. --image=product_a=./product_a.img\
    
12. --image=system_a=./system_a.img\
    
13. --image=system_ext_a=./system_ext_a.img\
    
14. --image=vendor_a=./vendor_a.img\
    
15. --group=google_system_dynamic_partitions_b:24563712\
    
16. --partition=odm_b:none:0:google_system_dynamic_partitions_b\
    
17. --partition=product_b:none:0:google_system_dynamic_partitions_b\
    
18. --partition=system_b:none:24563712:google_system_dynamic_partitions_b\
    
19. --partition=system_ext_b:none:0:google_system_dynamic_partitions_b\
    
20. --partition=vendor_b:none:0:google_system_dynamic_partitions_b\
    
21. --image=odm_b=./odm_b.img\
    
22. --image=product_b=./product_b.img\
    
23. --image=system_b=./system_b.img\
    
24. --image=system_ext_b=./system_ext_b.img\
    
25. --image=vendor_b=./vendor_b.img\
    
26. --sparse \
    
27. --output ./super.new.img

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参考资料：
https://forum.xda-developers.com/t/editing-system-img-inside-super-img-and-flashing-our-modifications.4196625/
https://blog.senyuuri.info/posts/2022-04-27-patching-android-super-images/

12344pi

论坛OK

coll80802

感谢客服指导

在新泽西州

气氛不算太好，不过也可以

sandm281

气氛不算太好，不过也可以

liu6314563

可以解决了我的问题