make system rw android
if system.img is sparse first unsparse it
file system.img
system.img: Android sparse image, version: 1.0, Total of 460079 4096-byte output blocks in 36 input chunks.
simg2img system.img system.raw.img
# e2fsck -f system.raw.img
resize2fs system.raw.img 5G
e2fsck -E unshare_blocks system.raw.img
resize2fs -M system.raw.img
e2fsck -f -y system.raw.img
info compare
fdisk -l system.img
Disk system.img: 1.72 GiB, 1850331136 bytes, 3613928 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
sudo fdisk -l system.raw.img
Disk system.raw.img: 1.76 GiB, 1884483584 bytes, 3680632 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
fdisk -l system.raw.img
Disk system.raw.img: 2.36 GiB, 2532089856 bytes, 4945488 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
system.raw.img: Linux rev 1.0 ext2 filesystem data, UUID=6958ae8c-fe6c-48cd-9c84-0150f384ce2d (extents) (large files) (huge files)
resizing dynamic partition
needs fastbootd mode
fastboot reboot fastboot
FYLFUC5HCUNVKRLB fastboot usb:1-3
C:/home/k/opt/platform-tools> ./fastboot getvar all
(bootloader) cpu-abi:arm64-v8a
(bootloader) super-partition-name:super
(bootloader) is-logical:ocdt:no
(bootloader) is-logical:mmcblk0boot1:no
(bootloader) is-logical:cache:no
(bootloader) is-logical:tee2:no
(bootloader) is-logical:opporeserve3:no
(bootloader) is-logical:nvdata:no
(bootloader) is-logical:sspm_1:no
(bootloader) is-logical:expdb:no
(bootloader) is-logical:lk:no
(bootloader) is-logical:special_preload:no
(bootloader) is-logical:my_custom:no
(bootloader) is-logical:persist:no
(bootloader) is-logical:scp2:no
(bootloader) is-logical:md_udc:no
(bootloader) is-logical:protect1:no
(bootloader) is-logical:opporeserve1:no
(bootloader) is-logical:tee1:no
(bootloader) is-logical:scp1:no
(bootloader) is-logical:flashinfo:no
(bootloader) is-logical:lk2:no
(bootloader) is-logical:gz1:no
(bootloader) is-logical:logo:no
(bootloader) is-logical:seccfg:no
(bootloader) is-logical:nvram:no
(bootloader) is-logical:recovery:no
(bootloader) is-logical:frp:no
(bootloader) is-logical:spmfw:no
(bootloader) is-logical:boot_para:no
(bootloader) is-logical:cdt_engineering:no
(bootloader) is-logical:otp:no
(bootloader) is-logical:vbmeta:no
(bootloader) is-logical:protect2:no
(bootloader) is-logical:userdata:no
(bootloader) is-logical:proinfo:no
(bootloader) is-logical:para:no
(bootloader) is-logical:opporeserve2:no
(bootloader) is-logical:gz2:no
(bootloader) is-logical:oppo_custom:no
(bootloader) is-logical:metadata:no
(bootloader) is-logical:boot:no
(bootloader) is-logical:mmcblk0boot0:no
(bootloader) is-logical:vbmeta_vendor:no
(bootloader) is-logical:nvcfg:no
(bootloader) is-logical:md1img:no
(bootloader) is-logical:sspm_2:no
(bootloader) is-logical:dtbo:no
(bootloader) is-logical:sec1:no
(bootloader) is-logical:mmcblk0:no
(bootloader) is-logical:super:no
(bootloader) is-logical:vbmeta_system:no
(bootloader) is-logical:vendor:yes
(bootloader) is-logical:system:yes
(bootloader) is-logical:product:yes
(bootloader) is-logical:odm:yes
(bootloader) is-logical:my_product:yes
(bootloader) is-logical:my_engineering:yes
(bootloader) is-logical:my_stock:yes
(bootloader) is-logical:my_heytap:yes
(bootloader) is-logical:my_company:yes
(bootloader) is-logical:my_carrier:yes
(bootloader) is-logical:my_region:yes
(bootloader) is-logical:my_preload:yes
(bootloader) is-logical:my_manifest:yes
(bootloader) is-logical:scratch:yes
(bootloader) battery-voltage:4
(bootloader) treble-enabled:true
(bootloader) is-userspace:yes
(bootloader) partition-size:ocdt:0x800000
(bootloader) partition-size:mmcblk0boot1:0x400000
(bootloader) partition-size:cache:0x1B000000
(bootloader) partition-size:tee2:0x500000
(bootloader) partition-size:opporeserve3:0x4000000
(bootloader) partition-size:nvdata:0x4000000
(bootloader) partition-size:sspm_1:0x100000
(bootloader) partition-size:expdb:0x1400000
(bootloader) partition-size:lk:0x400000
(bootloader) partition-size:special_preload:0x30000000
(bootloader) partition-size:my_custom:0x10000000
(bootloader) partition-size:scp2:0x100000
(bootloader) partition-size:md_udc:0x169A000
(bootloader) partition-size:protect1:0x800000
(bootloader) partition-size:opporeserve1:0x800000
(bootloader) partition-size:tee1:0x500000
(bootloader) partition-size:scp1:0x100000
(bootloader) partition-size:flashinfo:0x1000000
(bootloader) partition-size:lk2:0x400000
(bootloader) partition-size:gz1:0x1000000
(bootloader) partition-size:logo:0x800000
(bootloader) partition-size:seccfg:0x800000
(bootloader) partition-size:nvram:0x4000000
(bootloader) partition-size:recovery:0x6200000
(bootloader) partition-size:frp:0x100000
(bootloader) partition-size:spmfw:0x100000
(bootloader) partition-size:boot_para:0x100000
(bootloader) partition-size:cdt_engineering:0x800000
(bootloader) partition-size:otp:0x2B00000
(bootloader) partition-size:vbmeta:0xC00000
(bootloader) partition-size:protect2:0xFDE000
(bootloader) partition-size:userdata:0xC45CFBE00
(bootloader) partition-size:proinfo:0x300000
(bootloader) partition-size:para:0x80000
(bootloader) partition-size:opporeserve2:0x8000000
(bootloader) partition-size:gz2:0x1000000
(bootloader) partition-size:oppo_custom:0x100000
(bootloader) partition-size:metadata:0x2000000
(bootloader) partition-size:boot:0x2000000
(bootloader) partition-size:mmcblk0boot0:0x400000
(bootloader) partition-size:vbmeta_vendor:0x800000
(bootloader) partition-size:nvcfg:0x2000000
(bootloader) partition-size:md1img:0x6400000
(bootloader) partition-size:sspm_2:0x100000
(bootloader) partition-size:dtbo:0x800000
(bootloader) partition-size:sec1:0x200000
(bootloader) partition-size:super:0x1B4C00000
(bootloader) partition-size:vbmeta_system:0x800000
(bootloader) partition-size:vendor:0x20E24000
(bootloader) partition-size:system:0x96ECA000
(bootloader) partition-size:product:0x20A000
(bootloader) partition-size:odm:0x7BCA000
(bootloader) partition-size:my_product:0x18EF000
(bootloader) partition-size:my_engineering:0x52000
(bootloader) partition-size:my_stock:0x2C5B3000
(bootloader) partition-size:my_heytap:0x486D9000
(bootloader) partition-size:my_company:0x55000
(bootloader) partition-size:my_carrier:0x55000
(bootloader) partition-size:my_region:0x55000
(bootloader) partition-size:my_preload:0x55000
(bootloader) partition-size:my_manifest:0x0
(bootloader) partition-size:scratch:0x5295C000
(bootloader) version-vndk:30
(bootloader) has-slot:ocdt:no
(bootloader) has-slot:mmcblk0boot1:no
(bootloader) has-slot:cache:no
(bootloader) has-slot:tee2:no
(bootloader) has-slot:opporeserve3:no
(bootloader) has-slot:nvdata:no
(bootloader) has-slot:sspm_1:no
(bootloader) has-slot:expdb:no
(bootloader) has-slot:lk:no
(bootloader) has-slot:special_preload:no
(bootloader) has-slot:my_custom:no
(bootloader) has-slot:persist:no
(bootloader) has-slot:scp2:no
(bootloader) has-slot:md_udc:no
(bootloader) has-slot:protect1:no
(bootloader) has-slot:opporeserve1:no
(bootloader) has-slot:tee1:no
(bootloader) has-slot:scp1:no
(bootloader) has-slot:flashinfo:no
(bootloader) has-slot:lk2:no
(bootloader) has-slot:gz1:no
(bootloader) has-slot:logo:no
(bootloader) has-slot:seccfg:no
(bootloader) has-slot:nvram:no
(bootloader) has-slot:recovery:no
(bootloader) has-slot:frp:no
(bootloader) has-slot:spmfw:no
(bootloader) has-slot:boot_para:no
(bootloader) has-slot:cdt_engineering:no
(bootloader) has-slot:otp:no
(bootloader) has-slot:vbmeta:no
(bootloader) has-slot:protect2:no
(bootloader) has-slot:userdata:no
(bootloader) has-slot:proinfo:no
(bootloader) has-slot:para:no
(bootloader) has-slot:opporeserve2:no
(bootloader) has-slot:gz2:no
(bootloader) has-slot:oppo_custom:no
(bootloader) has-slot:metadata:no
(bootloader) has-slot:boot:no
(bootloader) has-slot:mmcblk0boot0:no
(bootloader) has-slot:vbmeta_vendor:no
(bootloader) has-slot:nvcfg:no
(bootloader) has-slot:md1img:no
(bootloader) has-slot:sspm_2:no
(bootloader) has-slot:dtbo:no
(bootloader) has-slot:sec1:no
(bootloader) has-slot:mmcblk0:no
(bootloader) has-slot:super:no
(bootloader) has-slot:vbmeta_system:no
(bootloader) has-slot:vendor:no
(bootloader) has-slot:system:no
(bootloader) has-slot:product:no
(bootloader) has-slot:odm:no
(bootloader) has-slot:my_product:no
(bootloader) has-slot:my_engineering:no
(bootloader) has-slot:my_stock:no
(bootloader) has-slot:my_heytap:no
(bootloader) has-slot:my_company:no
(bootloader) has-slot:my_carrier:no
(bootloader) has-slot:my_region:no
(bootloader) has-slot:my_preload:no
(bootloader) has-slot:my_manifest:no
(bootloader) has-slot:scratch:no
(bootloader) security-patch-level:2099-12-31
(bootloader) vendor-fingerprint:realme/twrp_RMX2185/RMX2185:99.87.36/RQ1A.210205.004/root10031738:eng/test-keys
(bootloader) hw-revision:0
(bootloader) current-slot:
(bootloader) serialno:FYLFUC5HCUNVKRLB
(bootloader) product:RMX2185
(bootloader) version-os:99.87.36
(bootloader) first-api-level:29
(bootloader) slot-count:0
(bootloader) max-download-size:0x10000000
(bootloader) version:0.4
(bootloader) version-baseband:
(bootloader) secure:no
(bootloader) dynamic-partition:true
(bootloader) system-fingerprint:realme/twrp_RMX2185/RMX2185:99.87.36/RQ1A.210205.004/root10031738:eng/test-keys
(bootloader) version-bootloader:unknown
(bootloader) unlocked:yes
all:
make sure fastboot getvar is-userspace is yes
fastboot getvar partition-size:system
(bootloader) partition-size:super:0x1B4C00000 = 7,361,249,280 bytes (~6.85 GiB)
super partition is 6.85 gb
| system | 0x96ECA000 | 2,536,841,216 | ~2420 MB |
| scratch | 0x5295C000 | 1,389,949,952 | ~1326 MB |
| my_heytap | 0x486D9000 | 1,221,317,376 | ~1165 MB |
| my_stock | 0x2C5B3000 | 748,822,400 | ~715 MB |
| vendor | 0x20E24000 | 551,618,560 | ~526 MB |
fastboot resize-logical-partition my_heytap 0
fastboot resize-logical-partition my_stock 0
fastboot resize-logical-partition system 3221225472
fastboot flash system system.raw.img
-------------
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/block/dm-1 2.9G 2.3G 657M 79% /
tmpfs 1.8G 2.0M 1.8G 1% /dev
tmpfs 1.8G 0 1.8G 0% /mnt
/dev/block/dm-4 25M 25M 76K 100% /mnt/vendor/my_product
/dev/block/dm-5 232K 52K 180K 23% /mnt/vendor/my_engineering
/dev/block/dm-6 236K 32K 204K 14% /mnt/vendor/my_company
/dev/block/dm-7 232K 52K 180K 23% /mnt/vendor/my_carrier
/dev/block/dm-8 236K 32K 204K 14% /mnt/vendor/my_region
/dev/block/dm-9 236K 32K 204K 14% /mnt/vendor/my_preload
/dev/block/mmcblk0p5 59M 196K 59M 1% /mnt/vendor/opporeserve
/dev/block/dm-10 1.2G 56K 1.2G 1% /mnt/scratch
/dev/block/mmcblk0p14 18M 196K 18M 2% /metadata
overlay 1.2G 56K 1.2G 1% /vendor
/dev/block/dm-3 123M 122M 400K 100% /odm
tmpfs 1.8G 0 1.8G 0% /apex
tmpfs 1.8G 216K 1.8G 1% /linkerconfig
/dev/block/mmcblk0p44 402M 52K 402M 1% /cache
/dev/block/mmcblk0p16 3.7M 116K 3.6M 4% /mnt/vendor/protect_f
/dev/block/mmcblk0p17 11M 44K 11M 1% /mnt/vendor/protect_s
/dev/block/mmcblk0p13 52M 1.4M 51M 3% /mnt/vendor/nvdata
/dev/block/mmcblk0p12 24M 44K 24M 1% /mnt/vendor/nvcfg
/dev/block/mmcblk0p19 42M 144K 42M 1% /mnt/vendor/persist
none 1.8G 12M 1.8G 1% /mnt/phh
/dev/block/mmcblk0p45 48G 55M 48G 1% /data
/dev/block/loop6 4.5M 4.5M 28K 100% /apex/com.android.media@300000000
/dev/block/loop7 128M 125M 3.5M 98% /apex/com.android.vndk.v30@1
tmpfs 1.8G 0 1.8G 0% /data_mirror
/dev/block/loop8 2.3M 2.3M 32K 99% /apex/com.android.resolv@300000000
/dev/block/loop9 5.5M 5.5M 28K 100% /apex/com.android.neuralnetworks@300000000
/dev/block/loop10 5.0M 4.9M 36K 100% /apex/com.android.runtime@1
/dev/block/loop11 8.6M 8.6M 28K 100% /apex/com.android.permission@300000000
/dev/block/loop12 1.6M 1.6M 28K 99% /apex/com.android.os.statsd@300000000
/dev/block/loop13 3.8M 3.8M 28K 100% /apex/com.android.extservices@300000000
/dev/block/loop14 524K 496K 28K 95% /apex/com.android.ipsec@300000000
/dev/block/loop15 232K 92K 140K 40% /apex/com.android.apex.cts.shim@1
/dev/block/loop16 6.3M 6.3M 32K 100% /apex/com.android.cellbroadcast@300000000
/dev/block/loop17 7.5M 7.5M 28K 100% /apex/com.android.adbd@300000000
/dev/block/loop18 4.7M 4.7M 28K 100% /apex/com.android.wifi@300000000
/dev/block/loop19 82M 82M 32K 100% /apex/com.android.art@1
/dev/block/loop20 876K 848K 28K 97% /apex/com.android.tethering@300000000
/dev/block/loop21 808K 780K 28K 97% /apex/com.android.tzdata@300000000
/dev/block/loop22 18M 18M 28K 100% /apex/com.android.media.swcodec@300000000
/dev/block/loop23 3.8M 3.8M 28K 100% /apex/com.android.mediaprovider@300000000
/dev/block/loop24 4.6M 4.5M 28K 100% /apex/com.android.conscrypt@300000000
/dev/block/loop25 336K 304K 32K 91% /apex/com.android.sdkext@300000000
/dev/block/loop26 24M 24M 32K 100% /apex/com.android.i18n@1
/dev/block/loop27 89M 89M 32K 100% /apex/com.android.vndk.v27@1
/dev/block/loop28 89M 89M 44K 100% /apex/com.android.vndk.v28@1
/dev/block/loop29 98M 98M 32K 100% /apex/com.android.vndk.v29@1
/data/media 48G 55M 48G 1% /mnt/runtime/default/emulated
/dev/fuse 48G 55M 48G 1% /storage/emulated
git clone --depth=1 https://github.com/unix3dgforce/lpunpack
cd lpunpack
usage: lpunpack.py [-h] [-p NAME] [-S NUM] SUPER_IMAGE OUTPUT_DIR -h, --help show this help message and exit
-p NAME, --partition NAME Extract the named partition. This can be specified multiple times or through the delimiter ["," ":"]
-S NUM, --slot NUM !!! No implementation yet !!! Slot number (default is 0).
--info, --no-info Displays pretty-printed partition metadata (default: False)
-f {text,json}, --format {text,json} Choice the format for printing info SUPER_IMAGE
OUTPUT_DIR
python3 lpunpack.py ../android/ofp/super.img --info
Slot 0:
Metadata version: 10.0
Metadata size: 1252 bytes
Metadata max size: 65536 bytes
Metadata slot count: 2
Header flags: none
Partition table:
------------------------
Name: vendor
Group: main
Attributes: readonly
Extents:
0 .. 1077535 linear super 2048
------------------------
Name: system
Group: main
Attributes: readonly
Extents:
0 .. 4432735 linear super 1081344
------------------------
Name: product
Group: main
Attributes: readonly
Extents:
0 .. 4175 linear super 5515264
------------------------
Name: odm
Group: main
Attributes: readonly
Extents:
0 .. 253519 linear super 5521408
------------------------
Name: my_product
Group: main
Attributes: readonly
Extents:
0 .. 51063 linear super 5775360
------------------------
Name: my_engineering
Group: main
Attributes: readonly
Extents:
0 .. 655 linear super 5826560
------------------------
Name: my_stock
Group: main
Attributes: readonly
Extents:
0 .. 1453463 linear super 5828608
------------------------
Name: my_heytap
Group: main
Attributes: readonly
Extents:
0 .. 2373319 linear super 7282688
------------------------
Name: my_company
Group: main
Attributes: readonly
Extents:
0 .. 679 linear super 9656320
------------------------
Name: my_carrier
Group: main
Attributes: readonly
Extents:
0 .. 679 linear super 9658368
------------------------
Name: my_region
Group: main
Attributes: readonly
Extents:
0 .. 679 linear super 9660416
------------------------
Name: my_preload
Group: main
Attributes: readonly
Extents:
0 .. 679 linear super 9662464
------------------------
Name: my_manifest
Group: main
Attributes: readonly
Extents:
------------------------
Super partition layout:
------------------------
super: 2048 .. 1079584: vendor (1077536 sectors)
super: 1081344 .. 5514080: system (4432736 sectors)
super: 5515264 .. 5519440: product (4176 sectors)
super: 5521408 .. 5774928: odm (253520 sectors)
super: 5775360 .. 5826424: my_product (51064 sectors)
super: 5826560 .. 5827216: my_engineering (656 sectors)
super: 5828608 .. 7282072: my_stock (1453464 sectors)
super: 7282688 .. 9656008: my_heytap (2373320 sectors)
super: 9656320 .. 9657000: my_company (680 sectors)
super: 9658368 .. 9659048: my_carrier (680 sectors)
super: 9660416 .. 9661096: my_region (680 sectors)
super: 9662464 .. 9663144: my_preload (680 sectors)
------------------------
Block device table:
------------------------
Partition name: super
First sector: 2048
Size: 7327449088 bytes
Flags: none
------------------------
Group table:
------------------------
Name: default
Maximum size: 0 bytes
Flags: none
------------------------
Name: main
Maximum size: 7325351936 bytes
Flags: none
python3 lpunpack.py ../android/ofp/super.img ex -p vendor
python3 lpunpack.py ../android/ofp/super.img ex -p odm
python3 lpunpack.py ../android/ofp/super.img ex -p product
python3 lpunpack.py ../android/ofp/super.img ex -p my_product,my_engineering,my_stock,my_heytap,my_company,my_company,my_region,my_preload
Filesystem volume name: vendor
Last mounted on: /vendor
Filesystem UUID: 6b580801-6b33-5c38-955f-6808a0512ff5
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: ext_attr dir_index filetype extent sparse_super large_file huge_file uninit_bg dir_nlink extra_isize shared_blocks
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 2400
Block count: 132545
Reserved block count: 0
Free blocks: 407
Free inodes: 63
First block: 0
Block size: 4096
Fragment size: 4096
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 480
Inode blocks per group: 30
Filesystem created: Thu Jan 1 05:45:00 2009
Last mount time: n/a
Last write time: Thu Jan 1 05:45:00 2009
Mount count: 0
Maximum mount count: -1
Last checked: Thu Jan 1 05:45:00 2009
Check interval: 0 (<none>)
Lifetime writes: 1 kB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Default directory hash: half_md4
Directory Hash Seed: aa5a73e4-8248-5467-a274-88a7c0fad1bc
Directories: 85
Group 0: block bitmap at 2, inode bitmap at 3, inode table at 4
0 free blocks, 0 free inodes, 19 used directories, 0 unused inodes
[Checksum 0x222f]
Group 1: block bitmap at 32770, inode bitmap at 32771, inode table at 32772
0 free blocks, 0 free inodes, 17 used directories, 0 unused inodes
[Checksum 0xcf1d]
Group 2: block bitmap at 65536, inode bitmap at 65537, inode table at 65538
0 free blocks, 0 free inodes, 20 used directories, 0 unused inodes
[Checksum 0x8e5c]
Group 3: block bitmap at 98306, inode bitmap at 98307, inode table at 98308
0 free blocks, 0 free inodes, 8 used directories, 0 unused inodes
[Checksum 0x4867]
Group 4: block bitmap at 131072, inode bitmap at 131073, inode table at 131074
407 free blocks, 63 free inodes, 21 used directories, 63 unused inodes
[Checksum 0x7577]
resize2fs vendor.img 5G
e2fsck -E unshare_blocks vendor.img
resize2fs -M vendor.img
e2fsck -f -y vendor.img
fastboot flash vendor vendor.img
android device mapper
ls -l /dev/block/mapper/
total 0
drwxr-xr-x 2 root root 260 2025-05-17 22:39 by-uuid
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_carrier -> /dev/block/dm-7
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_company -> /dev/block/dm-6
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_engineering -> /dev/block/dm-5
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_preload -> /dev/block/dm-9
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_product -> /dev/block/dm-4
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 my_region -> /dev/block/dm-8
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 odm -> /dev/block/dm-3
lrwxrwxrwx 1 root root 15 2025-05-17 22:39 product -> /dev/block/dm-2
lrwxrwxrwx 1 root root 16 2025-05-17 22:39 scratch -> /dev/block/dm-10
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 system -> /dev/block/dm-1
lrwxrwxrwx 1 root root 15 2025-05-17 22:38 vendor -> /dev/block/dm-0
dmctl list devices
Available Device Mapper Devices:
product : 252:2
my_product : 252:4
vendor : 252:0
system : 252:1
my_carrier : 252:7
my_engineering : 252:5
my_region : 252:8
my_company : 252:6
my_preload : 252:9
odm : 252:3
scratch : 252:10
dmctl table system
Targets in the device-mapper table for system:
0-3680632: linear, 259:10 1081344
3680632-4945488: linear, 259:10 11605280
4945488-6291456: linear, 259:10 5828608
This shows the start sector (0), size (3680632), target type (linear), block device (259:10), and offset (1081344).
dmctl table vendor
Targets in the device-mapper table for vendor:
0-1077536: linear, 259:10 2048
1077536-1180456: linear, 259:10 7174576
adb shell dd if=/dev/block/dm-1 of=/data/vendor-rw.img
e2fsck -E unshare_blocks /data/vendor-rw.img
dumpe2fs -h vendor.img
dumpe2fs 1.47.0 (5-Feb-2023)
Filesystem volume name: vendor
Last mounted on: /vendor
Filesystem UUID: 6b580801-6b33-5c38-955f-6808a0512ff5
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: ext_attr dir_index filetype extent sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 2400
Block count: 147557
Reserved block count: 0
Free blocks: 2330
Free inodes: 63
First block: 0
Block size: 4096
Fragment size: 4096
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 480
Inode blocks per group: 30
Filesystem created: Thu Jan 1 05:45:00 2009
Last mount time: n/a
Last write time: Sat May 17 22:29:21 2025
Mount count: 0
Maximum mount count: -1
Last checked: Sat May 17 22:29:21 2025
Check interval: 0 (<none>)
Lifetime writes: 53 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Default directory hash: half_md4
Directory Hash Seed: aa5a73e4-8248-5467-a274-88a7c0fad1bc
avbctl get-verity
verity is disabled.
avbctl get-verification
verification is disabled.
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