extracting and creating ipk files

问题

ipk packages are the intallation packages used by opkg.

I'm trying to extract the contents of one of them and also create my own ipk.

I've read that I should be able to untar them but that is not true.

I've tried:

tar -zxvf mypack.ipk

and I get:

zip: stdin: not in gzip format

I've also tried:

tar -xvf mypack.ipk

and I get:

tar: This does not look like a tar archive

I've found that most of the information on the internet regarding ipk's are inaccurate.

My ipk was generated by bitbake. I'm having a hard time with bitbake and want to avoid using it.

Any ideas on how to extract and how to create ipk files? A simple template with a single package would be useful to have.

回答1:

I figured it out.

You can extract the main package with the ar x command, then extract the control.tar.gz with the tar -zxf command.

回答2:

You need to create a control file, and then do some archiving using tar and ar. In my case, I was distributing just python scripts, so there was no architecture dependency. You should check the control and Makefile into version control, and delete all the other intermediate files.

Here are the contents of control

Package: my-thing-python
Version: 1.0
Description: python scripts for MyCompany
Section: extras
Priority: optional
Maintainer: John 
License: CLOSED
Architecture: all
OE: my-thing-python
Homepage: unknown
Depends: python python-distutils python-pyserial python-curses python-mmap python-ctypes
Source:  N/A

Here is my Makefile which sits in the same directory as all my python scripts.

all: my-thing-python.ipk


my-thing-python.ipk:
        rm -rf ipk
        mkdir -p ipk/opt/my-thing-python
        cp *.py ipk/opt/my-thing-python
        tar czvf control.tar.gz control
        cd ipk; tar czvf ../data.tar.gz .; cd ..
        echo 2.0 > debian-binary
        ar r my-thing-python.ipk control.tar.gz data.tar.gz  debian-binary

clean: FORCE
        rm -rf ipk
        rm -f control.tar.gz
        rm -f data.tar.gz
        rm -f my-thing-python.ipk

FORCE:

回答3:

I have tested "ar x package-name.ipk" command but it didn't help

I found bellow command which worked perfectly

tar zxpvf package-name.ipk

This extracts three files:

debian-binary

data.tar.gz

control.tar.gz

use the same command to open data.tar.gz and control.tar.gz files

for more information refer to https://cognito.me.uk/computers/manual-extractioninstallation-of-ipk-packages-on-gargoyleopenwrt/

回答4:

Extracting with these commands:

Extract the file by running the command:
```
  ar -xv   <.ipk file>
```
Extract the control.tar.gz file by running the command:
```
  tar -zxvf control.tar.gz
```
data.tar.gz : untar by running the command:
```
     tar –zxvf data.tar.gz
```

来源：https://stackoverflow.com/questions/17369127/extracting-and-creating-ipk-files

标签

packages