Прошивка планшета на AllWinner A23

[ludibubi]

here I am again. I've tried the howto from the first page Как сделать бекап разделов AllWinner A23 через ADB (скачать можно здесь)

I installed SDK platform-tools and start cmd as admin

First I checked wether the device is connected

Код: Выделить всё

C:\platform-tools>adb devices
List of devices attached
034c1b08093500000000    device

then I typed the text fromthe spoiler

Код: Выделить всё

C:\platform-tools>adb root
adbd is already running as root

C:\platform-tools>adb shell
root@astar-inet:/ #

Then I entered the next part mount -o remount,rw /mnt/extsd /mnt/extsd

but I got an invalid argument error

Код: Выделить всё

C:\platform-tools>adb shell
root@astar-inet:/ # mount -o remount,rw /mnt/extsd /mnt/extsd
mount: Invalid argument
255|root@astar-inet:/ #

What is wrong?

Regards Ludger

[Blaze]

Hi ludibubi.
Please check that your SD card is mounted and look at mount path of your SD card - he can be different (not as /mnt/extsd) via this command:

Код: Выделить всё

ls /mnt

fix path of your SD card at command

Код: Выделить всё

mount -o remount,rw /mnt/extsd /mnt/extsd

to your path.

[ludibubi]

Hi Blaze, thks for your answer and sorry for my late reply, but I was in hospital for an eye surgery.

I've checked the path with ls /mount and the answer was

C:\platform-tools>adb ls /mnt
000041fd 00000000 601c46bb .
000041ed 00000000 601c46c4 ..
000041c0 00000000 601c46bb usbhost1
000041f8 00008000 00000000 extsd
0000a1ff 00000018 601c46bb sdcard
000041ed 00000028 601c46bb obb
000041ed 00000028 601c46bb asec
000041c0 00000050 601c46bb secure
000041c0 00000000 601c46bb media_rw
000041c0 00000000 601c46bb shell

C:\platform-tools>

I changed the path to mount -o remount,rw /mnt/sdcard /mnt/extsd

Now I don't got an error and so I entered the last line /dev/block.....
But here was another error: nand* no such file or directory

C:\platform-tools>adb root
adbd is already running as root

C:\platform-tools>adb shell
mount -o remount,rw /mnt/sdcard /mnt/extsd
cd /dev/block/;for i in `ls nand* | busybox grep -v nandi`; do echo Backup of $i ...; dd if=/dev/block/$i of=../../mnt/extsd/$i; doneroot@astar-inet:/ # mount -o remount,rw /mnt/sdcard /mnt/extsd
Backup of $i ...; dd if=/dev/block/$i of=../../mnt/extsd/$i; done <
nand*: No such file or directory
root@astar-inet:/dev/block #

[Blaze]

Hi ludibubi,
sorry for my late reply too.
Please check avable partitions via

Код: Выделить всё

ls /dev/block

copy output of this command and share it.

Thanks.

[ludibubi]

ok here is the result:

Код: Выделить всё

Microsoft Windows [Version 10.0.19041.804]
(c) 2020 Microsoft Corporation. Alle Rechte vorbehalten.

C:\WINDOWS\system32>cd C:\platform-tools

C:\platform-tools>adb devices
List of devices attached
034c1b08093500000000    device


C:\platform-tools>adb ls /dev/block
000041ed 00000280 60311b18 .
000041ed 00000a64 60311b39 ..
000041c0 00000050 60311b18 vold
00006180 00000000 60311b11 mmcblk0p14
00006180 00000000 60311b10 mmcblk0p13
00006180 00000000 60311b10 mmcblk0p12
00006180 00000000 60311b10 mmcblk0p11
00006180 00000000 60311b10 mmcblk0p10
00006180 00000000 60311b10 mmcblk0boot1
00006180 00000000 60311b10 mmcblk0boot0
00006180 00000000 60311b10 mmcblk0p9
00006180 00000000 60311b10 mmcblk0p8
00006180 00000000 60311b10 mmcblk0p7
00006180 00000000 60311b10 mmcblk0p6
00006180 00000000 60311b10 mmcblk0p5
00006180 00000000 60311b10 mmcblk0p3
00006180 00000000 60311b10 mmcblk0p2
00006180 00000000 60311b11 mmcblk0p1
00006180 00000000 60311b10 mmcblk0
00006180 00000000 60311b10 mmcblk1p1
000041ed 00000050 60311b10 platform
00006180 00000000 60311b10 mmcblk1
00006180 00000000 60311b12 zram0
00006180 00000000 60311b10 loop7
00006180 00000000 60311b10 loop6
00006180 00000000 60311b10 loop5
00006180 00000000 60311b10 loop4
00006180 00000000 60311b10 loop3
00006180 00000000 60311b10 loop2
00006180 00000000 60311b10 loop1
00006180 00000000 60311b10 loop0
000041ed 00000118 60311b10 by-name

C:\platform-tools>

[Blaze]

ludibubi, do you really have an Allwinner A23 tablet PC?

Try like this:

Код: Выделить всё

cd c:\adb\
adb root
adb shell
uname -a
mount -o remount,rw /mnt/sdcard /mnt/extsd
cd /dev/block/;for i in `ls mmc*`; do echo Backup of $i ...; dd if=/dev/block/$i of=/mnt/extsd/$i; done
dd if=/dev/block/vold of=/mnt/extsd/vold
dd if=/dev/block/platform of=/mnt/extsd/platform
dd if=/dev/block/by-name of=/mnt/extsd/by-name

[ludibubi]

I use CPU-Z and this is the result







Here is the cmd-result of your suggestion:

Microsoft Windows [Version 10.0.19041.804]
(c) 2020 Microsoft Corporation. Alle Rechte vorbehalten.

C:\WINDOWS\system32>cd C:\platform-tools

C:\platform-tools>adb devices
List of devices attached
034c1b08093500000000 device


C:\platform-tools>adb root
adbd is already running as root

C:\platform-tools>adb shell
uname -a
mount -o remount,rw /mnt/sdcard /mnt/extsd
cd /dev/block/;for i in `ls mmc*`; do echo Backup of $i ...; dd if=/dev/block/$i of=/mnt/extsd/$i; done
dd if=/dev/block/vold of=/mnt/extsd/vold
dd if=/dev/block/platform of=/mnt/extsd/platform
dd if=/dev/block/by-name of=/mnt/extsd/by-nameroot@astar-inet:/ # uname -a
/system/bin/sh: uname: not found
127|root@astar-inet:/ # mount -o remount,rw /mnt/sdcard /mnt/extsd
mc*`; do echo Backup of $i ...; dd if=/dev/block/$i of=/mnt/extsd/$i; done <
Backup of mmcblk0 ...

There is one error: /system/bin/sh: uname: not found
But it seems that it started backup: Backup of mmcblk0 ...

Let's see what happens.....:

[Blaze]

ludibubi, MPman MPQC12 CPU: AllWinner A33
https://mobilespecs.net/tablet/Mpman/MPman_MPQC12.html

uname this command for the kernel information, for example

Код: Выделить всё

# uname -a
Linux porteus.example.net 5.11.0-newAUFif #1 SMP Sun Feb 21 10:21:24 UTC 2021 x86_64 Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz GenuineIntel GNU/Linux

[ludibubi]

Why does CPU-Z say that it is a A23?

[ludibubi]

Now it's working 1,h hours. It seems that adb is backing up, but there are also some entries which say "write error: File too large"
To large for what? I have a SD-card with 256 GB

Microsoft Windows [Version 10.0.19041.804]
(c) 2020 Microsoft Corporation. Alle Rechte vorbehalten.

C:\WINDOWS\system32>cd C:\platform-tools

C:\platform-tools>adb devices
List of devices attached
034c1b08093500000000 device


C:\platform-tools>adb root
adbd is already running as root

C:\platform-tools>adb shell
uname -a
mount -o remount,rw /mnt/sdcard /mnt/extsd
cd /dev/block/;for i in `ls mmc*`; do echo Backup of $i ...; dd if=/dev/block/$i of=/mnt/extsd/$i; done
dd if=/dev/block/vold of=/mnt/extsd/vold
dd if=/dev/block/platform of=/mnt/extsd/platform
dd if=/dev/block/by-name of=/mnt/extsd/by-nameroot@astar-inet:/ # uname -a
/system/bin/sh: uname: not found
127|root@astar-inet:/ # mount -o remount,rw /mnt/sdcard /mnt/extsd
mc*`; do echo Backup of $i ...; dd if=/dev/block/$i of=/mnt/extsd/$i; done <
Backup of mmcblk0 ...
/mnt/extsd/mmcblk0: write error: File too large
8388608+0 records in
8388607+1 records out
4294967295 bytes transferred in 2443.915 secs (1757412 bytes/sec)
Backup of mmcblk0boot0 ...
8192+0 records in
8192+0 records out
4194304 bytes transferred in 0.458 secs (9157868 bytes/sec)
Backup of mmcblk0boot1 ...
8192+0 records in
8192+0 records out
4194304 bytes transferred in 0.427 secs (9822725 bytes/sec)
Backup of mmcblk0p1 ...
/mnt/extsd/mmcblk0p1: write error: File too large
8388608+0 records in
8388607+1 records out
4294967295 bytes transferred in 2400.298 secs (1789347 bytes/sec)
Backup of mmcblk0p10 ...
1048576+0 records in
1048576+0 records out
536870912 bytes transferred in 299.187 secs (1794432 bytes/sec)
Backup of mmcblk0p11 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 5.296 secs (3167903 bytes/sec)
Backup of mmcblk0p12 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 10.276 secs (1632660 bytes/sec)
Backup of mmcblk0p13 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 0.839 secs (19996681 bytes/sec)
Backup of mmcblk0p14 ...
131072+0 records in
131072+0 records out
67108864 bytes transferred in 34.354 secs (1953451 bytes/sec)
Backup of mmcblk0p2 ...
65536+0 records in
65536+0 records out
33554432 bytes transferred in 22.181 secs (1512755 bytes/sec)
Backup of mmcblk0p3 ...
2+0 records in
2+0 records out
1024 bytes transferred in 0.001 secs (1024000 bytes/sec)
Backup of mmcblk0p5 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 1.099 secs (15265892 bytes/sec)
Backup of mmcblk0p6 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 4.775 secs (3513553 bytes/sec)
Backup of mmcblk0p7 ...
1572864+0 records in
1572864+0 records out
805306368 bytes transferred in 447.526 secs (1799462 bytes/sec)
Backup of mmcblk0p8 ...
32768+0 records in
32768+0 records out
16777216 bytes transferred in 10.144 secs (1653905 bytes/sec)
Backup of mmcblk0p9 ...
65536+0 records in
65536+0 records out
33554432 bytes transferred in 17.747 secs (1890710 bytes/sec)
Backup of mmcblk1 ...
/mnt/extsd/mmcblk1: write error: File too large
8388608+0 records in
8388607+1 records out
4294967295 bytes transferred in 3265.909 secs (1315090 bytes/sec)
Backup of mmcblk1p1 ...