[Tutorial] estructura de tabla de particiones de Rn4x

[tonibig]

Lo que se necesita para recuperar las particiones del Rn4x, sacado de mi modelo sano: (OJO estas tablas son de una rom RR, no tengo rom Miui instalada para compararlas, en prncipio tienen que ser las mismas, pero no es seguro, me suena que son 49 particiones)

Recuerdo lo que ya he citado en otro post:
Aqui explican como volcar las partitciones (dump) desde la imagen de una rom hacia el dispositivo y así recuperarlas (por ej. perdida de efs).

https://forum.xda-developers.com/sho....php?t=2450045

Asi en caso de no poder iniciar, se puede instalar el TWRP desde fastboot, y trabajar por ADB desde twrp, para restaurar las partes dañadas.

Entender y manejar el sistema de particionamiento de Android:

https://forum.xda-developers.com/sho...d.php?t=907436


Por nombre:

PS C:\Users> adb shell
~ # ^[[37;5Rls -al /dev/block/platform/soc/xxxxxxx.sdhci/by-name
ls -al /dev/block/platform/soc/xxxxxxx.sdhci/by-name
drwxr-xr-x 2 root root 1020 Feb 18 1970 .
drwxr-xr-x 4 root root 1100 Feb 18 1970 ..
lrwxrwxrwx 1 root root 21 Feb 18 1970 DDR -> /dev/block/mmcblk0p15
lrwxrwxrwx 1 root root 21 Feb 18 1970 aboot -> /dev/block/mmcblk0p19
lrwxrwxrwx 1 root root 21 Feb 18 1970 abootbak -> /dev/block/mmcblk0p20
lrwxrwxrwx 1 root root 21 Feb 18 1970 apdp -> /dev/block/mmcblk0p45
lrwxrwxrwx 1 root root 21 Feb 18 1970 boot -> /dev/block/mmcblk0p21
lrwxrwxrwx 1 root root 21 Feb 18 1970 cache -> /dev/block/mmcblk0p25
lrwxrwxrwx 1 root root 21 Feb 18 1970 cmnlib -> /dev/block/mmcblk0p39
lrwxrwxrwx 1 root root 21 Feb 18 1970 cmnlib64 -> /dev/block/mmcblk0p41
lrwxrwxrwx 1 root root 21 Feb 18 1970 cmnlib64bak -> /dev/block/mmcblk0p42
lrwxrwxrwx 1 root root 21 Feb 18 1970 cmnlibbak -> /dev/block/mmcblk0p40
lrwxrwxrwx 1 root root 21 Feb 18 1970 config -> /dev/block/mmcblk0p29
lrwxrwxrwx 1 root root 21 Feb 18 1970 cust -> /dev/block/mmcblk0p48
lrwxrwxrwx 1 root root 21 Feb 18 1970 devcfg -> /dev/block/mmcblk0p10
lrwxrwxrwx 1 root root 21 Feb 18 1970 devcfgbak -> /dev/block/mmcblk0p11
lrwxrwxrwx 1 root root 21 Feb 18 1970 devinfo -> /dev/block/mmcblk0p23
lrwxrwxrwx 1 root root 21 Feb 18 1970 dip -> /dev/block/mmcblk0p33
lrwxrwxrwx 1 root root 21 Feb 18 1970 dpo -> /dev/block/mmcblk0p47
lrwxrwxrwx 1 root root 21 Feb 18 1970 dsp -> /dev/block/mmcblk0p12
lrwxrwxrwx 1 root root 20 Feb 18 1970 fsc -> /dev/block/mmcblk0p2
lrwxrwxrwx 1 root root 21 Feb 18 1970 fsg -> /dev/block/mmcblk0p16
lrwxrwxrwx 1 root root 21 Feb 18 1970 keymaster -> /dev/block/mmcblk0p43
lrwxrwxrwx 1 root root 21 Feb 18 1970 keymasterbak -> /dev/block/mmcblk0p44
lrwxrwxrwx 1 root root 21 Feb 18 1970 keystore -> /dev/block/mmcblk0p28
lrwxrwxrwx 1 root root 21 Feb 18 1970 limits -> /dev/block/mmcblk0p31
lrwxrwxrwx 1 root root 21 Feb 18 1970 lksecapp -> /dev/block/mmcblk0p37
lrwxrwxrwx 1 root root 21 Feb 18 1970 lksecappbak -> /dev/block/mmcblk0p38
lrwxrwxrwx 1 root root 21 Feb 18 1970 mcfg -> /dev/block/mmcblk0p36
lrwxrwxrwx 1 root root 21 Feb 18 1970 mdtp -> /dev/block/mmcblk0p34
lrwxrwxrwx 1 root root 21 Feb 18 1970 misc -> /dev/block/mmcblk0p27
lrwxrwxrwx 1 root root 20 Feb 18 1970 modem -> /dev/block/mmcblk0p1
lrwxrwxrwx 1 root root 21 Feb 18 1970 modemst1 -> /dev/block/mmcblk0p13
lrwxrwxrwx 1 root root 21 Feb 18 1970 modemst2 -> /dev/block/mmcblk0p14
lrwxrwxrwx 1 root root 21 Feb 18 1970 mota -> /dev/block/mmcblk0p32
lrwxrwxrwx 1 root root 21 Feb 18 1970 msadp -> /dev/block/mmcblk0p46
lrwxrwxrwx 1 root root 21 Feb 18 1970 oem -> /dev/block/mmcblk0p30
lrwxrwxrwx 1 root root 21 Feb 18 1970 persist -> /dev/block/mmcblk0p26
lrwxrwxrwx 1 root root 21 Feb 18 1970 recovery -> /dev/block/mmcblk0p22
lrwxrwxrwx 1 root root 20 Feb 18 1970 rpm -> /dev/block/mmcblk0p6
lrwxrwxrwx 1 root root 20 Feb 18 1970 rpmbak -> /dev/block/mmcblk0p7
lrwxrwxrwx 1 root root 20 Feb 18 1970 sbl1 -> /dev/block/mmcblk0p4
lrwxrwxrwx 1 root root 20 Feb 18 1970 sbl1bak -> /dev/block/mmcblk0p5
lrwxrwxrwx 1 root root 21 Feb 18 1970 sec -> /dev/block/mmcblk0p17
lrwxrwxrwx 1 root root 21 Feb 18 1970 splash -> /dev/block/mmcblk0p18
lrwxrwxrwx 1 root root 20 Feb 18 1970 ssd -> /dev/block/mmcblk0p3
lrwxrwxrwx 1 root root 21 Feb 18 1970 syscfg -> /dev/block/mmcblk0p35
lrwxrwxrwx 1 root root 21 Feb 18 1970 system -> /dev/block/mmcblk0p24
lrwxrwxrwx 1 root root 20 Feb 18 1970 tz -> /dev/block/mmcblk0p8
lrwxrwxrwx 1 root root 20 Feb 18 1970 tzbak -> /dev/block/mmcblk0p9
lrwxrwxrwx 1 root root 21 Feb 18 1970 userdata -> /dev/block/mmcblk0p49

Por número:

ls -al /dev/block/platform/soc/xxxxxxx.sdhci/by-num
drwxr-xr-x 2 root root 1020 Feb 18 1970 .
drwxr-xr-x 4 root root 1100 Feb 18 1970 ..
lrwxrwxrwx 1 root root 20 Feb 18 1970 p1 -> /dev/block/mmcblk0p1
lrwxrwxrwx 1 root root 21 Feb 18 1970 p10 -> /dev/block/mmcblk0p10
lrwxrwxrwx 1 root root 21 Feb 18 1970 p11 -> /dev/block/mmcblk0p11
lrwxrwxrwx 1 root root 21 Feb 18 1970 p12 -> /dev/block/mmcblk0p12
lrwxrwxrwx 1 root root 21 Feb 18 1970 p13 -> /dev/block/mmcblk0p13
lrwxrwxrwx 1 root root 21 Feb 18 1970 p14 -> /dev/block/mmcblk0p14
lrwxrwxrwx 1 root root 21 Feb 18 1970 p15 -> /dev/block/mmcblk0p15
lrwxrwxrwx 1 root root 21 Feb 18 1970 p16 -> /dev/block/mmcblk0p16
lrwxrwxrwx 1 root root 21 Feb 18 1970 p17 -> /dev/block/mmcblk0p17
lrwxrwxrwx 1 root root 21 Feb 18 1970 p18 -> /dev/block/mmcblk0p18
lrwxrwxrwx 1 root root 21 Feb 18 1970 p19 -> /dev/block/mmcblk0p19
lrwxrwxrwx 1 root root 20 Feb 18 1970 p2 -> /dev/block/mmcblk0p2
lrwxrwxrwx 1 root root 21 Feb 18 1970 p20 -> /dev/block/mmcblk0p20
lrwxrwxrwx 1 root root 21 Feb 18 1970 p21 -> /dev/block/mmcblk0p21
lrwxrwxrwx 1 root root 21 Feb 18 1970 p22 -> /dev/block/mmcblk0p22
lrwxrwxrwx 1 root root 21 Feb 18 1970 p23 -> /dev/block/mmcblk0p23
lrwxrwxrwx 1 root root 21 Feb 18 1970 p24 -> /dev/block/mmcblk0p24
lrwxrwxrwx 1 root root 21 Feb 18 1970 p25 -> /dev/block/mmcblk0p25
lrwxrwxrwx 1 root root 21 Feb 18 1970 p26 -> /dev/block/mmcblk0p26
lrwxrwxrwx 1 root root 21 Feb 18 1970 p27 -> /dev/block/mmcblk0p27
lrwxrwxrwx 1 root root 21 Feb 18 1970 p28 -> /dev/block/mmcblk0p28
lrwxrwxrwx 1 root root 21 Feb 18 1970 p29 -> /dev/block/mmcblk0p29
lrwxrwxrwx 1 root root 20 Feb 18 1970 p3 -> /dev/block/mmcblk0p3
lrwxrwxrwx 1 root root 21 Feb 18 1970 p30 -> /dev/block/mmcblk0p30
lrwxrwxrwx 1 root root 21 Feb 18 1970 p31 -> /dev/block/mmcblk0p31
lrwxrwxrwx 1 root root 21 Feb 18 1970 p32 -> /dev/block/mmcblk0p32
lrwxrwxrwx 1 root root 21 Feb 18 1970 p33 -> /dev/block/mmcblk0p33
lrwxrwxrwx 1 root root 21 Feb 18 1970 p34 -> /dev/block/mmcblk0p34
lrwxrwxrwx 1 root root 21 Feb 18 1970 p35 -> /dev/block/mmcblk0p35
lrwxrwxrwx 1 root root 21 Feb 18 1970 p36 -> /dev/block/mmcblk0p36
lrwxrwxrwx 1 root root 21 Feb 18 1970 p37 -> /dev/block/mmcblk0p37
lrwxrwxrwx 1 root root 21 Feb 18 1970 p38 -> /dev/block/mmcblk0p38
lrwxrwxrwx 1 root root 21 Feb 18 1970 p39 -> /dev/block/mmcblk0p39
lrwxrwxrwx 1 root root 20 Feb 18 1970 p4 -> /dev/block/mmcblk0p4
lrwxrwxrwx 1 root root 21 Feb 18 1970 p40 -> /dev/block/mmcblk0p40
lrwxrwxrwx 1 root root 21 Feb 18 1970 p41 -> /dev/block/mmcblk0p41
lrwxrwxrwx 1 root root 21 Feb 18 1970 p42 -> /dev/block/mmcblk0p42
lrwxrwxrwx 1 root root 21 Feb 18 1970 p43 -> /dev/block/mmcblk0p43
lrwxrwxrwx 1 root root 21 Feb 18 1970 p44 -> /dev/block/mmcblk0p44
lrwxrwxrwx 1 root root 21 Feb 18 1970 p45 -> /dev/block/mmcblk0p45
lrwxrwxrwx 1 root root 21 Feb 18 1970 p46 -> /dev/block/mmcblk0p46
lrwxrwxrwx 1 root root 21 Feb 18 1970 p47 -> /dev/block/mmcblk0p47
lrwxrwxrwx 1 root root 21 Feb 18 1970 p48 -> /dev/block/mmcblk0p48
lrwxrwxrwx 1 root root 21 Feb 18 1970 p49 -> /dev/block/mmcblk0p49
lrwxrwxrwx 1 root root 20 Feb 18 1970 p5 -> /dev/block/mmcblk0p5
lrwxrwxrwx 1 root root 20 Feb 18 1970 p6 -> /dev/block/mmcblk0p6
lrwxrwxrwx 1 root root 20 Feb 18 1970 p7 -> /dev/block/mmcblk0p7
lrwxrwxrwx 1 root root 20 Feb 18 1970 p8 -> /dev/block/mmcblk0p8
lrwxrwxrwx 1 root root 20 Feb 18 1970 p9 -> /dev/block/mmcblk0p9
~ # ^[[40;5R

ahora sus dimensiones:

~ # ^[[10;5Rcat /proc/partitions
cat /proc/partitions
major minor #blocks name

179 0 30535680 mmcblk0
179 1 86016 mmcblk0p1
179 2 1 mmcblk0p2
179 3 8 mmcblk0p3
179 4 512 mmcblk0p4
179 5 512 mmcblk0p5
179 6 512 mmcblk0p6
179 7 512 mmcblk0p7
179 8 2048 mmcblk0p8
179 9 2048 mmcblk0p9
179 10 256 mmcblk0p10
179 11 256 mmcblk0p11
179 12 16384 mmcblk0p12
179 13 1536 mmcblk0p13
179 14 1536 mmcblk0p14
179 15 32 mmcblk0p15
179 16 1536 mmcblk0p16
179 17 16 mmcblk0p17
179 18 11264 mmcblk0p18
179 19 1024 mmcblk0p19
179 20 1024 mmcblk0p20
179 21 65536 mmcblk0p21
179 22 65536 mmcblk0p22
179 23 1024 mmcblk0p23
179 24 3145728 mmcblk0p24
179 25 262144 mmcblk0p25
179 26 32768 mmcblk0p26
179 27 1024 mmcblk0p27
179 28 512 mmcblk0p28
179 29 32 mmcblk0p29
179 30 262144 mmcblk0p30
179 31 32 mmcblk0p31
259 0 512 mmcblk0p32
259 1 1024 mmcblk0p33
259 2 32768 mmcblk0p34
259 3 512 mmcblk0p35
259 4 4096 mmcblk0p36
259 5 128 mmcblk0p37
259 6 128 mmcblk0p38
259 7 256 mmcblk0p39
259 8 256 mmcblk0p40
259 9 256 mmcblk0p41
259 10 256 mmcblk0p42
259 11 256 mmcblk0p43
259 12 256 mmcblk0p44
259 13 256 mmcblk0p45
259 14 256 mmcblk0p46
259 15 8 mmcblk0p47
259 16 851968 mmcblk0p48
259 17 25161191 mmcblk0p49
179 32 4096 mmcblk0rpmb
179 64 124868608 mmcblk1
179 65 124864188 mmcblk1p1
253 0 25161175 dm-0
~ # ^[[40;5R

Y me diréis ¿para que? en caso de brick grave (corrupción de particiones por lo que sea)
teniendo esto, se puede corregir a mano y restablecer la estructura correcta para iniciar correctamente el dispositivo, sabiendo el tamaño de los bloques y su posición.
OJO, en el comando xxxxxxx, es el número único asignado a cada terminal, se tiene que acceder (por ej. por TWRP para conocerlo, hay que saber que el último TWRP tiene interfaz ADB, lo que facilita mucho las cosas, (no olvidarse activar las opción administrador para adb en opciones de desarollo).
Saludos.

[tonibig]

¿ Habrá un alma generosa que puede pegar los resultados de una rom stock, para comparar ? Gracias.

[MiguelSpartan]

buen trabajo Tonibig! seguro a mas de uno le vendra e perlas.