ampart is a partition tool that grants you freedom on adjusting Amlogic's proprietary eMMC partition table in any way you like it.
The following SoCs are proven to be compatible with ampart:
- gxbb (s905)
- gxl (s905l, s905x, s905d)
- g12a (s905x2)
- g12b (s922x)
- sm1 (s905x3)
- sc2 (s905x4)
It supports building and running under following platforms:
- x86_64
- mainly on dumped images
- aarch64
- either on eMMC directly, or
- on dumped image
Please refer to the documentation under doc for the usage and details about the arguments and official demo scripts. The ampart program itself does not have built-in CLI help message, as it is intended to be used by power users or in scripts, for which the officially maintained doc in the repo should always be refered to anyway.
A few easy use cases are listed here, keep in mind these are not the only things ampart could do.
ampart /path/to/emmc/or/reserved/block/device/or/dump --mode webreport
This will give your a URL like the following:
https://7ji.github.io/ampart-web-reporter/?dsnapshot=logo::8388608:1%20recovery::25165824:1%20misc::8388608:1%20dtbo::8388608:1%20cri_data::8388608:2%20param::16777216:2%20boot::16777216:1%20rsv::16777216:1%20metadata::16777216:1%20vbmeta::2097152:1%20tee::33554432:1%20vendor::335544320:1%20odm::134217728:1%20system::1946157056:1%20product::134217728:1%20cache::1174405120:2%20data::18446744073709551615:4&esnapshot=bootloader:0:4194304:0%20reserved:37748736:67108864:0%20cache:113246208:1174405120:2%20env:1296039936:8388608:0%20logo:1312817152:8388608:1%20recovery:1329594368:25165824:1%20misc:1363148800:8388608:1%20dtbo:1379926016:8388608:1%20cri_data:1396703232:8388608:2%20param:1413480448:16777216:2%20boot:1438646272:16777216:1%20rsv:1463812096:16777216:1%20metadata:1488977920:16777216:1%20vbmeta:1514143744:2097152:1%20tee:1524629504:33554432:1%20vendor:1566572544:335544320:1%20odm:1910505472:134217728:1%20system:2053111808:1946157056:1%20product:4007657472:134217728:1%20data:4150263808:120919687168:4
Copy it to your browser and you can get well-formatted DTB and eMMC partition info, with notes are whether or not some areas on your eMMC could be written to
ampart /path/to/your/eMMC/drive/or/dumped/image --mode dclone data::-1:4
This can turn a eMMC partition table that co-exists with MBR/GPT where you dare not create partitions freely on to like this where you can freely create MBR/GPT partitions on (4M-36M, 100M-116M, 117M-end):
===================================================================================
ID| name | offset|( human)| size|( human)| masks
-----------------------------------------------------------------------------------
0: bootloader 0 ( 0.00B) 400000 ( 4.00M) 0
(GAP) 2000000 ( 32.00M)
1: reserved 2400000 ( 36.00M) 4000000 ( 64.00M) 0
(GAP) 800000 ( 8.00M)
2: cache 6c00000 ( 108.00M) 0 ( 0.00B) 0
(GAP) 800000 ( 8.00M)
3: env 7400000 ( 116.00M) 800000 ( 8.00M) 0
(GAP) 800000 ( 8.00M)
4: data 8400000 ( 132.00M) 73f800000 ( 28.99G) 4
===================================================================================
ampart /path/to/your/eMMC/drive/or/dumped/image --mode ecreate data:::
You can turn EPT further to like this where you can freely create MBR partitions on more areas(5M-36M, 100M-end):
===================================================================================
ID| name | offset|( human)| size|( human)| masks
-----------------------------------------------------------------------------------
0: bootloader 0 ( 0.00B) 400000 ( 4.00M) 0
1: env 400000 ( 4.00M) 800000 ( 8.00M) 0
2: cache c00000 ( 12.00M) 0 ( 0.00B) 0
(GAP) 1800000 ( 24.00M)
3: reserved 2400000 ( 36.00M) 4000000 ( 64.00M) 0
4: data 6400000 ( 100.00M) 741800000 ( 29.02G) 4
===================================================================================
Release versions can be downloaded from the release page. The static versions are recommended if you're not using ArchLinux.
The Github actions in this repo is also configured to compile ampart to x86_64 and aarch64 static binaries on each push, you can download these builds by clicking the green √ the top middle of this page
If you're using ArchLinux, you can build ampart with the AUR package ampart-git maintained by myself:
git clone https://aur.archlinux.org/ampart-git.git
cd ampart-git
makepkg -si
You can clone the repo and build it from source with make. If you're using a Debian-derived distro like Ubuntu, for example, you can build it like this (ampart only depends on zlib, the FDT support is implemented from ground up without libfdt at all):
- Install the build dependencies, You could ignore these apt commands if you have the build tools and dependencies installed
sudo apt update sudo apt install build-essential zlib1g-dev git - Clone and build
git clone https://github.com/7Ji/ampart.git cd ampart make
You're free to include ampart in your project as long as it meets the license. You're recommended to build it from source rather than downloading the binary release.
ampart(Amlogic emmc partition tool) is licensed under GPL3
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Copyright (C) 2022-2023 7Ji ([email protected])
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This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version * of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.