特定的img 分解後會遺失部份內容

使用du, df, ls 簡單的觀察，如下
```
RMX2121CN:/ $ du -h /product
20K	/product/overlay/NavigationBarModeGesturalNarrowBack
32K	/product/overlay/DisplayCutoutEmulationDouble
16K	/product/overlay/FontNotoSerifSource
16K	/product/overlay/OneHandedModeGestural
32K	/product/overlay/DisplayCutoutEmulationCorner
16K	/product/overlay/NavigationBarMode3Button
32K	/product/overlay/DisplayCutoutEmulationWaterfall
32K	/product/overlay/DisplayCutoutEmulationHole
32K	/product/overlay/DisplayCutoutEmulationTall
20K	/product/overlay/NavigationBarModeGesturalWideBack
20K	/product/overlay/NavigationBarModeGesturalExtraWideBack
20K	/product/overlay/NavigationBarModeGestural
19M	/product/overlay
304K	/product/media/audio/ui
308K	/product/media/audio
312K	/product/media
1.7M	/product/framework
7.8M	/product/lib64
du: /product/bin/init.oplus.nandswap.sh: Permission denied
16K	/product/bin
28K	/product/app/com.google.mainline.telemetry
32K	/product/app/com.google.android.modulemetadata
1.8M	/product/app/AudioEffectCenter
92K	/product/app/CarrierSuplConfig
1.3M	/product/app/NetworkLocationAmap
860K	/product/app/OVoiceManagerService_20601
111M	/product/app/OplusCamera
6.7M	/product/app/SogouInput_S_Product/lib/arm64
6.7M	/product/app/SogouInput_S_Product/lib
53M	/product/app/SogouInput_S_Product
16K	/product/app/ARCore
88M	/product/app/Browser
17M	/product/app/FinShellWallet/lib/arm64
17M	/product/app/FinShellWallet/lib
66M	/product/app/FinShellWallet
39M	/product/app/GlobalSearch
33M	/product/app/Instant/lib/arm64
33M	/product/app/Instant/lib
69M	/product/app/Instant
48K	/product/app/InstantService
1.2M	/product/app/KeKePay/lib/arm64
1.2M	/product/app/KeKePay/lib
10M	/product/app/KeKePay
34M	/product/app/Music
844K	/product/app/OplusThirdKit
3.7M	/product/app/StdSP
1.9M	/product/app/ADS
42M	/product/app/Aod/lib/arm64
42M	/product/app/Aod/lib
105M	/product/app/Aod
44M	/product/app/COSA
8.8M	/product/app/Calendar
7.7M	/product/app/ChildrenSpace
12M	/product/app/Clock
14M	/product/app/CloudService
8.3M	/product/app/CodeBook
3.7M	/product/app/ColorAccessibilityAssistant
16M	/product/app/ColorDirectService
4.9M	/product/app/ColorDirectUI
9.4M	/product/app/DigitalWellBeing
3.5M	/product/app/FileEncryption
10M	/product/app/FileManager
16M	/product/app/FindMyPhoneClient2
17M	/product/app/FloatAssistant
9.2M	/product/app/FocusMode
4.5M	/product/app/HealthCheck
5.9M	/product/app/HeyDlnaService
1.8M	/product/app/IFlySpeechService/lib/arm64
1.8M	/product/app/IFlySpeechService/lib
14M	/product/app/IFlySpeechService
3.7M	/product/app/Karaoke
2.7M	/product/app/MSPService/lib/arm64
2.7M	/product/app/MSPService/lib
17M	/product/app/MSPService
15M	/product/app/MapComFrame
516K	/product/app/Metis
1.8M	/product/app/OVoiceManagerSkillService
1.6M	/product/app/OpenCapabilityService
376K	/product/app/OplusSecurityKeyboard
3.6M	/product/app/OppoOperationManual
3.6M	/product/app/OppoWeatherService
42M	/product/app/PhoneManager
54M	/product/app/Pictorial
1.4M	/product/app/RomUpdate
5.7M	/product/app/SceneMode
10M	/product/app/SecurePay
3.9M	/product/app/SecurityGuard
16M	/product/app/ShareScreen
3.1M	/product/app/SmartEngine
13M	/product/app/SmartLock
4.3M	/product/app/SmartSideBar
392K	/product/app/TZUpdate
1.7M	/product/app/VariUIEngine
25M	/product/app/Wallpapers
4.2M	/product/app/WellbeingAssistant
2.9M	/product/app/WifiSecureDetect
3.9M	/product/app/realmeMovieShot
1.0G	/product/app
12K	/product/etc/security/fsverity
8.0K	/product/etc/security/avb
24K	/product/etc/security
8.0K	/product/etc/selinux
8.0K	/product/etc/init
36K	/product/etc/sysconfig
64K	/product/etc/permissions
200K	/product/etc
5.6M	/product/priv-app/SystemClone
24M	/product/priv-app/HeyTapSpeechAssist/lib/arm64
24M	/product/priv-app/HeyTapSpeechAssist/lib
112M	/product/priv-app/HeyTapSpeechAssist
8.5M	/product/priv-app/KeKeAppDetail
36M	/product/priv-app/KeKeMarket
54M	/product/priv-app/KeKeThemeSpace
6.9M	/product/priv-app/OpenID
11M	/product/priv-app/AccessoryFramework
87M	/product/priv-app/BrowserVideo
7.7M	/product/priv-app/ColorfulEngine
1.0M	/product/priv-app/DCS
12M	/product/priv-app/FindMyPhone
8.4M	/product/priv-app/HeyCast
1.4M	/product/priv-app/HeySynergy
6.7M	/product/priv-app/KeKeUserCenter/lib/arm64
6.7M	/product/priv-app/KeKeUserCenter/lib
52M	/product/priv-app/KeKeUserCenter
4.3M	/product/priv-app/MDSService
21M	/product/priv-app/OCar
2.8M	/product/priv-app/ONet
11M	/product/priv-app/OPSynergy
5.9M	/product/priv-app/OShare
5.9M	/product/priv-app/OplusScreenRecorder
21M	/product/priv-app/OppoBootReg
137M	/product/priv-app/OppoGallery2
2.0M	/product/priv-app/RemoteGuardService
7.8M	/product/priv-app/SOSHelper
8.6M	/product/priv-app/Screenshot
632M	/product/priv-app
356K	/product/lib
du: /product/lost+found: Permission denied
1.6G	/product
RMX2121CN:/ $ 
RMX2121CN:/ $ df -h /product                                                 
Filesystem      Size Used Avail Use% Mounted on
/dev/block/dm-2 2.1M 2.1M     0 100% /product
RMX2121CN:/ $
RMX2121CN:/ $ ls /product/priv-app                                           
AccessoryFramework  KeKeMarket      OplusScreenRecorder
BrowserVideo        KeKeThemeSpace  OppoBootReg
ColorfulEngine      KeKeUserCenter  OppoGallery2
DCS                 MDSService      RemoteGuardService
FindMyPhone         OCar            SOSHelper
HeyCast             ONet            Screenshot
HeySynergy          OPSynergy       SystemClone
HeyTapSpeechAssist  OShare
KeKeAppDetail       OpenID
RMX2121CN:/ $
RMX2121CN:/ $ mount | grep  /product                                                                                  
/dev/block/dm-2 on /product type ext4 (ro,seclabel,relatime)
overlay-overlay on /product/app type overlay (ro,seclabel,noatime,lowerdir=/mnt/vendor/my_region/app:/mnt/vendor/my_product/app:/mnt/vendor/my_heytap/app:/mnt/vendor/my_stock/app:/mnt/vendor/my_engineering/app:/product/app,override_creds=off)
overlay-overlay on /product/priv-app type overlay (ro,seclabel,noatime,lowerdir=/mnt/vendor/my_region/priv-app:/mnt/vendor/my_product/priv-app:/mnt/vendor/my_heytap/priv-app:/mnt/vendor/my_stock/priv-app:/mnt/vendor/my_engineering/priv-app:/product/priv-app,override_creds=off)
overlay-overlay on /product/lib64 type overlay (ro,seclabel,noatime,lowerdir=/mnt/vendor/my_region/lib64:/mnt/vendor/my_product/lib64:/mnt/vendor/my_heytap/lib64:/mnt/vendor/my_stock/lib64:/product/lib64,override_creds=off)
overlay-overlay on /product/lib type overlay (ro,seclabel,noatime,lowerdir=/mnt/vendor/my_region/lib:/mnt/vendor/my_product/lib:/mnt/vendor/my_heytap/lib:/mnt/vendor/my_stock/lib:/product/lib,override_creds=off)
overlay-overlay on /product/overlay type overlay (ro,seclabel,noatime,lowerdir=/mnt/vendor/my_region/overlay:/mnt/vendor/my_product/overlay:/mnt/vendor/my_heytap/overlay:/mnt/vendor/my_stock/overlay:/mnt/vendor/my_engineering/overlay:/product/overlay,override_creds=off)
overlay on /product/etc/permissions type overlay (ro,seclabel,relatime,lowerdir=/mnt/vendor/my_product/product_overlay/etc/permissions/:/product/etc/permissions/,override_creds=off)
overlay on /product/framework type overlay (ro,seclabel,relatime,lowerdir=/mnt/vendor/my_product/product_overlay/framework/:/product/framework/,override_creds=off)
/dev/cyL810F/.magisk/block/product on /dev/cyL810F/.magisk/mirror/product type ext4 (ro,seclabel,relatime)
RMX2121CN:/ $
```

可以發現確實有少許多東西，img size 比app 還要小非常多，主要是發生Filesystem路徑為 overlay 和overlay-overlay ，有在想是不是[OverlayFS 架構](https://blog.csdn.net/luckyapple1028/article/details/77916194)的關係，可能不是直接改product 這個，是要去改my_* 這些img內的東西

另外補充，也發現這個android 12 super 分區是由ext 和erofs 所組成

Yeliqin666/TIK

内容风险标识

评论 (4)

Yeliqin666/TIK .gitee-modal { width: 500px !important; }

内容风险标识