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-rw-r--r--apt-pkg/algorithms.cc35
-rw-r--r--apt-pkg/deb/deblistparser.cc11
2 files changed, 35 insertions, 11 deletions
diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index 2d710097a..2f5fcc7ab 100644
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -362,11 +362,36 @@ bool pkgDistUpgrade(pkgDepCache &Cache)
if (I->CurrentVer != 0)
Cache.MarkInstall(I, true, 0, false);
- /* Now, auto upgrade all essential packages - this ensures that
- the essential packages are present and working */
- for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
- if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
- Cache.MarkInstall(I, true, 0, false);
+ /* Now, install each essential package which is not installed
+ (and not provided by another package in the same name group) */
+ std::string essential = _config->Find("pkgCacheGen::Essential", "all");
+ if (essential == "all")
+ {
+ for (pkgCache::GrpIterator G = Cache.GrpBegin(); G.end() == false; ++G)
+ {
+ bool isEssential = false;
+ bool instEssential = false;
+ for (pkgCache::PkgIterator P = G.PackageList(); P.end() == false; P = G.NextPkg(P))
+ {
+ if ((P->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential)
+ continue;
+ isEssential = true;
+ if (Cache[P].Install() == true)
+ {
+ instEssential = true;
+ break;
+ }
+ }
+ if (isEssential == false || instEssential == true)
+ continue;
+ pkgCache::PkgIterator P = G.FindPreferredPkg();
+ Cache.MarkInstall(P, true, 0, false);
+ }
+ }
+ else if (essential != "none")
+ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
+ if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
+ Cache.MarkInstall(I, true, 0, false);
/* We do it again over all previously installed packages to force
conflict resolution on them all. */
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 7bef6772c..0a7e41538 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -243,13 +243,12 @@ bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
if (Pkg->Section == 0)
Pkg->Section = UniqFindTagWrite("Section");
- // Packages which are not from the "native" arch doesn't get the essential flag
- // in the default "native" mode - it is also possible to mark "all" or "none".
- // The "installed" mode is handled by ParseStatus(), See #544481 and friends.
string const static myArch = _config->Find("APT::Architecture");
- string const static essential = _config->Find("pkgCacheGen::Essential", "native");
- if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) ||
- essential == "all")
+ // Possible values are: "all", "native", "installed" and "none"
+ // The "installed" mode is handled by ParseStatus(), See #544481 and friends.
+ string const static essential = _config->Find("pkgCacheGen::Essential", "all");
+ if (essential == "all" ||
+ (essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()))
if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
return false;
if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)