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.
--
Removing any u-desktop depdencency marks all other packages for auto-removal
https://launchpad.net/bugs/61684
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