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While I am trying to install a deb package embedded inside customized Ubuntu server ISO file, I get an installation error saying:

An installation step failed. You can try to run the failing item again from the menu or skip it and choose something else. The failing step is: Select and install software.

When I exclude the deb package everything seems to work perfectly. At first I thought it was a dependency problem but I am certain all the dependencies copied to the ISO file. Another opinion I got is maybe there is something wrong with deb package while creating it but it could be installed on command line without any problem. The steps I followed How to create a Customized Ubuntu Server ISO? while creating the ISO file.

Maybe am I missing something ?

EDIT: I think system tries to download the package from system repositories then says "Unable to locate the package" and doesn't recognize the folder extras I created so it can not find the package.

But I solved it in a different way. I created a local repository then installed packages and everything worked perfectly yet still don't know how to solve the first problem. The steps I followed:

  1. First I created necessary folders

    mkdir -p ~/Downloads/newIso/dists/stable/extras/binary-i386 ~/Downloads/newIso/pool/extras/
sudo cp ~/Downloads/*.deb newIso/pool/extras/

  2. Then created Packages.gz which includes info of packages

    cd ~/Downloads/newIso
sudo apt-ftparchive packages ./pool/extras/ | gzip -c > ./dists/stable/extras/binary-i386/Packages.gz
cd ~/Downloads/

  3. And added following line to the pre-seed file:

    d-i pkgsel/include string PACKAGE_NAME

    BTW I also tried without changing the pre-seed file just to see if the system searches extras/binary-i386 folder for packages.

  4. Finally I created the ISO file:

    sudo mkisofs -J -l -b isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -z -iso-level 4 -c isolinux/isolinux.cat -o ./ubuntu-14.04-myowninstall-amd64.iso -joliet-long newIso/

  5. After installing system packages the installer says:

    An installation step is failed …

    After I looked at the debug logs, I saw:

    Unable to locate PACKAGE_NAME

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  • Could you please add a little more detail? What exactly did you do, what did you want to expect to happen and what happened instead? Did you encounter any warning or error messages? Please reproduce them in their entirety in your question. You can select, copy and paste terminal content and most dialogue messages in Ubuntu. Please edit your post to add information instead of posting a comment. (see How do I ask a good question?)
    – David Foerster
    Nov 15, 2017 at 23:03
  • Let me rephrase that: What's the exact command in question that you issued and what's its entire, verbatim output?
    – David Foerster
    Nov 20, 2017 at 8:54
  • I edited question hope that would be enough info.
    – user3038057
    Nov 20, 2017 at 10:04
  • Have you tried dpkg-scanpackages -m base_image/yourpackagefolder/ /dev/null | gzip -9c > base_image/yourpackagefolder/Packages.gz? It should make the iso find your package.
    – Katu
    Nov 20, 2017 at 10:10
  • Yes I have, but I used apt-ftparchives command instead of dpkg-scanpackages , I will try dpkg-scanpackages too and inform you about the result
    – user3038057
    Nov 21, 2017 at 8:18

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