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Installer: merge base_folders and img_sizes
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Tasssadar committed Mar 31, 2013
1 parent 0d0a233 commit 2b4c0e3
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86 changes: 45 additions & 41 deletions installer/README.md
Original file line number Diff line number Diff line change
@@ -1,41 +1,45 @@
# MultiROM reference installer
This is a reference installer file structure.
It should be used only for Linux
based ROMs, where classic update.zip format is unsuitable.

## Installation file
The installation file itself is a ZIP archive, renamed to `*.mrom` so that
recovery can know what is just ZIP archive and what is MultiROM
installer
file.
I recommend not to use compression when making this ZIP, the installation
will be faster and the ROM is already compressed in .tar.gz files.

### Content
* **manifest.txt** - File with info for the recovery. Read the comments in that
file to know more.

* **rom** - Folder with tar.gz archives containing each of the ROM base folders
(e.g. `root.tar.gz`, `system.tar.gz`, ...). These can be split to
multiple files (and should be, if the file is bigger than ~800 MB).
Pattern is name_XX.tar.gz, so for example `root_00.tar.gz` and
`root_01.tar.gz`. Numbering __must__ start at 00!
Command `tar --numeric-owner --overwrite -xf` is used to extract
these tar files.

* **root_dir** - Content of this folder will be copied to root of the ROM
folder - `/sdcard/multirom/roms/*rom_name*`. It can contain
`rom_info.txt` if it's Linux ROM or the `boot` folder and/or
`boot.img` if it's Android-based ROM.

* **pre_install, post_install** - Sh scripts in these folders will be ran
before/after the installation. They must return success return
code else the installation is aborted. Path to root
folder/folder where images are mounted is
passed as argument to this script, script can then cd to one of
the base folders and do whatever it wants to. Scripts are ran
in alphabetical order (use numbers, `01_script.sh`, `02_script.sh`).
**All** files from both directories are extracted to `/tmp/script/`,
which means you can put e.g. binary blobs in there and copy them
to proper place in the sh scripts or pack some binaries needed
by the scripts (e.g. gnutar, remember to set chmod before running them).
# MultiROM reference installer
This is a reference installer file structure.
It should be used only for Linux
based ROMs, where classic update.zip format is unsuitable.

## Installation file
The installation file itself is a ZIP archive, renamed to `*.mrom` so that
recovery can know what is just ZIP archive and what is MultiROM
installer
file.
I recommend not to use compression when making this ZIP, the installation
will be faster and the ROM is already compressed in .tar.gz files.

While this format should be versatile enough, feel free to contact me if you
need something changed - if it is reasonable, there will be no problem
adding changes you need.

### Content
* **manifest.txt** - File with info for the recovery. Read the comments in that
file to know more.

* **rom** - Folder with tar.gz archives containing each of the ROM base folders
(e.g. `root.tar.gz`, `system.tar.gz`, ...). These can be split to
multiple files (and should be, if the file is bigger than ~800 MB).
Pattern is name_XX.tar.gz, so for example `root_00.tar.gz` and
`root_01.tar.gz`. Numbering __must__ start at 00!
Command `tar --numeric-owner --overwrite -xf` is used to extract
these tar files.

* **root_dir** - Content of this folder will be copied to root of the ROM
folder - `/sdcard/multirom/roms/*rom_name*`. It can contain
`rom_info.txt` if it's Linux ROM or the `boot` folder and/or
`boot.img` if it's Android-based ROM.

* **pre_install, post_install** - Sh scripts in these folders will be ran
before/after the installation. They must return success return
code else the installation is aborted. Path to root
folder/folder where images are mounted is
passed as argument to this script, script can then cd to one of
the base folders and do whatever it wants to. Scripts are ran
in alphabetical order (use numbers, `01_script.sh`, `02_script.sh`).
**All** files from both directories are extracted to `/tmp/script/`,
which means you can put e.g. binary blobs in there and copy them
to proper place in the sh scripts or pack some binaries needed
by the scripts (e.g. gnutar, remember to set chmod before running them).
22 changes: 6 additions & 16 deletions installer/manifest.txt
Original file line number Diff line number Diff line change
Expand Up @@ -39,19 +39,9 @@ loc_usb_img="1"
# If USB drive w/ FAT32/NTFS image is used, each of these is separate image.
# If this is a Linux ROM, you usually want just "root". If it is Android-based,
# you probably want "cache", "system" and "data"
# Example: base_folders="data system cache"
base_folders="root"

# Image sizes for FAT32/NTFS USB drives. Sizes are in MB.
# Can be ommited if ROM does not support images. Max size for FAT32 is 4096.
# Syntax: base_folder_name:MIN:DEFAULT another_base_folder_name:MIN:DEFAULT ...
# Example: img_sizes="root:1000:1500"
# img_sizes="data:50:1024 system:450:640 cache:50:450"
img_sizes="root:1000:1500"







# Specify also min and default size of the image craeted for FAT32/NTFS drives
# in megabytes. Min value is used to check free space if it is not installed
# to image.
# Syntax: name:MIN:DEFAULT name2:MIN:DEFAULT ...
# Example: base_folders="data:50:1024 system:450:640 cache:50:450"
base_folders="root:1000:1500"

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