wrong package list

[jll at majilux.org (jll at majilux.org)]

> jll at majilux.org wrote:
>
>> I am using version 1.0~a48-1 of live-helper with a personalized list of
>> packages in /usr/share/live-helper/lists/. It works well unless I put
>> a wrong package name in the file. In this case, all the process stops
>> with the message like "NO BINARY FILE FOUND", but I can't see the wrong
>> package name in the errors. The only solution I found is to try and try
>> untill I find the guilty package and this cost a lot of time.
>
>> Is there a better way to fix a wrong package list ?
>
> Firstly, using aptitude in LH_APT will mean that missing packages does not
> result in a broken build. This might result in strange behaviour however -
> for example, when Xfce was broken in Debian, building an "xfce" image with
> LH_APT="aptitude" resulted in a GNOME image.
>
> To fix your package list, we can use the fact that live-helper builds up a
> list of packages to install in file chroot/root/chroot_packages before
> installing them. Edit your lh_chroot_install-packages and add a call to
> "Breakpoint ${0}" before the packages are installed and then start a new
> build.
> When the build says "Waiting at..", start a new terminal and view the
> chroot/root/chroot_packages file - you could probably script the checking
> with:
>  for PKG in $(cat chroot/root/chroot-packages)
>  do
>     if ! apt-cache show ${PKG} >/dev/null 2>&1
>     then
>        echo "W: Package ${PKG} does not exist"
>     fi
>  done
> This assumes you are running the same distribution as your target
> distribution. Good luck :)
> Regards,
> --
> Chris Lamb, UK

Thank you for your precise answer. I just found an another way:

aptitude --simulate install `cat my_liste_of_packages`

Thanks again.
Jean-Louis