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Change the dependencies of a deb package

You can change the dependencies of a deb package like this:

  1. Unpack deb: ar x golden-linux.deb (will create i.e. three files: debian-binary control.tar.gz data.tar.gz)
  2. Unpack control archive and store to variable: FILES=$(tar zxvf control.tar.gz) (will create: postinst postrm preinst prerm md5sums control)
  3. Fix dependencies in control (use a text editor)
  4. Repack control.tar.gz: tar zcf control.tar.gz $FILES
  5. Repack deb: ar rcs newpackage.deb debian-binary control.tar.gz data.tar.gz (order important! See [Note] )

[Note]: dpkg wouldn't be able to read the metadata of a package quickly if it had to search for where the data section ended!