Removing any u-desktop depdencency marks all other packages for auto-removal (on alternate install)

This needs fixing in the livefs cd build script. It should use the new support for tasks in apt-get via "apt-get install taskname^" <- (notice the "^")

Assigning to Adam, since he knows (and has access to) hack our livecd.sh.

Tollef has access to fix this now

Tollef doesn't actually have access to fix this yet, but I'll mangle it right now.

For the record: this happens on *both* the current amd64 live and the ppc/alternate install, so fixing the livefs building is not enough.

I debugged the problem and it turns out that there is a bug in the new install-task code.

The reason is that TryToInstall() was used with BrokenFix=False. But unfortunately this mean in apt-speak that apt will fix any broken package automatically and this means that ones it encounters ubuntu-desktop it will auto-install all dependencies and mark those as auto-installed. Calling TryToInstall() with BrokenFix=True (newspeak!) means it won't autofix it and things work fine.

The fix is trivial (but too late for beta :(

--- cmdline/apt-get.cc 2006-09-19 15:22:41 +0000
+++ cmdline/apt-get.cc 2006-09-27 20:24:31 +0000
@@ -1440,7 +1440,7 @@
       buf[end-start] = 0x0;
       if (regexec(&Pattern,buf,0,0,0) != 0)
         continue;
- res &= TryToInstall(Pkg,Cache,Fix,false,BrokenFix,ExpectedInst);
+ res &= TryToInstall(Pkg,Cache,Fix,false,true,ExpectedInst);
       found = true;
    }

A workaround is to just empty /var/lib/apt/extended_states after the livefs build.

apt (0.6.45ubuntu14) edgy; urgency=low

  * cmdline/apt-get.cc:
    - fix in the TryInstallTask() code to make sure that all package
      there are marked manual install (lp: #61684)

 -- Michael Vogt <email address hidden> Thu, 28 Sep 2006 00:34:20 +0200

Closing portmap task (WTH??)

Reopening, since this still happens on an alternate install (ppc/20060928)

This is fixed on live but the installer needs to be adepted to use the new method on alternate.

Colin and I discussed this on IRC, and agreed that the most appropriate thing to do is to special-case langpacks in the livefs build process so that they are marked explicitly installed.

Adam said that he already has code for using the seeds to do things like this. Please make it so.

Michael and I talked about this on IRC, and it seemed that changing tasksel to use apt-get would be the path of least resistance for now.

However, I just had a look at tasksel and I can only do this by dropping a feature (installation by priority). That may not matter too much in the Ubuntu case, but if I can avoid dropping features then that would be preferable - so if fixing aptitude so that its task installation plays well with apt's auto-marking is easy, then that would be best.

(My last comment only pertains to the alternate install CD. I'd open a bug task for it but Malone is too pedantic to let me do so.)

On Mon, Oct 09, 2006 at 09:23:51PM -0000, Colin Watson wrote:
> Michael and I talked about this on IRC, and it seemed that changing
> tasksel to use apt-get would be the path of least resistance for now.
>
> However, I just had a look at tasksel and I can only do this by dropping
> a feature (installation by priority). That may not matter too much in
> the Ubuntu case, but if I can avoid dropping features then that would be
> preferable - so if fixing aptitude so that its task installation plays
> well with apt's auto-marking is easy, then that would be best.

Has this issue been properly fixed for the desktop CD yet? That needs to be
done, replacing the livefs.sh workaround.

I don't mind if we drop the priority feature; the metapackages provide a
similar level of granularity, so if that's the simplest, safest solution, I
prefer it.

--
 - mdz

Adam can have the ubuntu-cdimage task for the livefs handling; I'll take the Ubuntu task for tasksel work.

tasksel (2.50ubuntu6) edgy; urgency=low

  * Use apt-get rather than aptitude to install tasks (closes: Malone
    #61684). (This means that "Packages: standard" will no longer work, but
    we don't use that in Ubuntu anyway.)

 -- Colin Watson <email address hidden> Fri, 13 Oct 2006 10:40:48 +0100

Moving the ubuntu-cdimage task to the new livecd-rootfs package.

livecd-rootfs has been using apt-get to install tasks for ages, not sure why this bug stayed open...