diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 268f7213..58b42fc5 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -273,6 +273,8 @@ typedef enum _alpm_errno_t {
 	ALPM_ERR_TRANS_NOT_LOCKED,
 	/** A hook failed to run */
 	ALPM_ERR_TRANS_HOOK_FAILED,
+	/* The transaction is a partial upgrade */
+	ALPM_ERR_TRANS_PARTIAL_UPGRADE,
 	/* Packages */
 	/** Package not found */
 	ALPM_ERR_PKG_NOT_FOUND,
@@ -1477,6 +1479,19 @@ int alpm_db_set_usage(alpm_db_t *db, int usage);
  */
 int alpm_db_get_usage(alpm_db_t *db, int *usage);
 
+/** Set if a database may perform partial upgrades.
+ * @param db pointer to the package database
+ * @param partial 1 to allow, 0 to disallow
+ * @return 0 on success, or -1 on error
+ */
+int alpm_db_set_allow_partial_upgrades(alpm_db_t *db, int allow);
+
+/** Set if a database allows partial upgrades.
+ * @param db pointer to the package database
+ * @return 1 if allowed, 0 if not, -1 on error
+ */
+int alpm_db_get_allow_partial_upgrades(alpm_db_t *db);
+
 /* End of usage accessors */
 /** @} */
 
@@ -2797,7 +2812,8 @@ typedef enum _alpm_transflag_t {
 	ALPM_TRANS_FLAG_NOSCRIPTLET = (1 << 10),
 	/** Ignore dependency conflicts. */
 	ALPM_TRANS_FLAG_NOCONFLICTS = (1 << 11),
-	/* (1 << 12) flag can go here */
+	/** Allow partial upgrades */
+	ALPM_TRANS_FLAG_ALLOWPARTIAL = (1 << 12),
 	/** Do not install a package if it is already installed and up to date. */
 	ALPM_TRANS_FLAG_NEEDED = (1 << 13),
 	/** Use ALPM_PKG_REASON_EXPLICIT when installing packages. */
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index d949b645..051b9484 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -368,6 +368,19 @@ int SYMEXPORT alpm_db_get_usage(alpm_db_t *db, int *usage)
 	return 0;
 }
 
+int SYMEXPORT alpm_db_set_allow_partial_upgrades(alpm_db_t *db, int allow)
+{
+	ASSERT(db != NULL, return -1);
+	db->allow_partial = allow ? 1 : 0;
+	return 0;
+}
+
+int SYMEXPORT alpm_db_get_allow_partial_upgrades(alpm_db_t *db)
+{
+	ASSERT(db != NULL, return -1);
+	return db->allow_partial;
+}
+
 alpm_db_t *_alpm_db_new(const char *treename, int is_local)
 {
 	alpm_db_t *db;
diff --git a/lib/libalpm/db.h b/lib/libalpm/db.h
index ae1f0f74..e53b90fb 100644
--- a/lib/libalpm/db.h
+++ b/lib/libalpm/db.h
@@ -80,6 +80,8 @@ struct _alpm_db_t {
 	int siglevel;
 	/* alpm_db_usage_t */
 	int usage;
+
+	int allow_partial;
 };
 
 
diff --git a/lib/libalpm/error.c b/lib/libalpm/error.c
index 8929fcb9..a0b37898 100644
--- a/lib/libalpm/error.c
+++ b/lib/libalpm/error.c
@@ -104,6 +104,8 @@ const char SYMEXPORT *alpm_strerror(alpm_errno_t err)
 			return _("transaction commit attempt when database is not locked");
 		case ALPM_ERR_TRANS_HOOK_FAILED:
 			return _("failed to run transaction hooks");
+		case ALPM_ERR_TRANS_PARTIAL_UPGRADE:
+			return _("partial upgrade");
 		/* Packages */
 		case ALPM_ERR_PKG_NOT_FOUND:
 			return _("could not find or read package");
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index e73b8ffc..b609abbd 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -249,6 +249,8 @@ int SYMEXPORT alpm_sync_sysupgrade(alpm_handle_t *handle, int enable_downgrade)
 		}
 	}
 
+	trans->sysupgrade = enable_downgrade ? 2 : 1;
+
 	return 0;
 }
 
@@ -364,6 +366,111 @@ finish:
 	return ret;
 }
 
+static int has_replacment(alpm_db_t *sdb, alpm_pkg_t *lpkg)
+{
+	alpm_list_t *j, *k;
+	alpm_handle_t *handle = lpkg->handle;
+
+	for(j = _alpm_db_get_pkgcache(sdb); j; j = j->next) {
+		alpm_pkg_t *spkg = j->data;
+
+		if(alpm_pkg_should_ignore(handle, spkg)) {
+			continue;
+		}
+
+		for(k = alpm_pkg_get_replaces(spkg); k; k = k->next) {
+			alpm_depend_t *replace = k->data;
+			/* we only want to consider literal matches at this point. */
+			if(_alpm_depcmp_literal(lpkg, replace)) {
+				_alpm_log(handle, ALPM_LOG_DEBUG, "partial upgrade due to %s haivng replacment\n", lpkg->name);
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int is_partial_upgrade(alpm_handle_t *handle)
+{
+	alpm_list_t *i, *j;
+	alpm_trans_t *trans = handle->trans;
+	alpm_db_t *localdb = handle->db_local;
+	int from_sync = 0;
+
+	if(trans->sysupgrade == 2) {
+		return 0;
+	}
+
+	for(i = trans->add; i; i = i->next) {
+		alpm_pkg_t *pkg = i->data;
+
+		if (pkg->origin == ALPM_PKG_FROM_SYNCDB){
+			alpm_db_t *db = alpm_pkg_get_db(pkg);
+			if(!db->allow_partial) {
+				alpm_pkg_t *lpkg = alpm_db_get_pkg(localdb, pkg->name);
+				/* let transaction pass if reinstall */
+				if(!lpkg || _alpm_pkg_compare_versions(pkg, lpkg) != 0) {
+					from_sync = 1;
+					break;
+				}
+			}
+		}
+	}
+
+	for(i = _alpm_db_get_pkgcache(localdb); i; i = i->next) {
+		alpm_pkg_t *lpkg = i->data;
+
+		if(alpm_pkg_find(trans->add, lpkg->name) || alpm_pkg_find(trans->remove, lpkg->name)
+				|| alpm_pkg_should_ignore(handle, lpkg)) {
+			continue;
+		}
+
+		/* Search for replacers then literal (if no replacer) in each sync database. */
+		for(j = handle->dbs_sync; j; j = j->next) {
+			alpm_db_t *sdb = j->data;
+			alpm_pkg_t *spkg;
+
+			if(!(sdb->usage & ALPM_DB_USAGE_UPGRADE)) {
+				/* jump to next db */
+				continue;
+			}
+
+			if(!sdb->allow_partial && !trans->sysupgrade && has_replacment(sdb, lpkg)) {
+				return 1;
+			}
+
+			if(!from_sync) {
+				/* jump to next local package */
+				break;
+			}
+
+			spkg = _alpm_db_get_pkgfromcache(sdb, lpkg->name);
+
+			if(!spkg || alpm_pkg_should_ignore(handle, spkg)) {
+				/* jump to next db */
+				continue;
+			}
+
+			if(sdb->allow_partial) {
+				/* jump to next local package */
+				break;
+			}
+
+			/* Check sdb */
+			if(_alpm_pkg_compare_versions(spkg, lpkg) != 0) {
+				_alpm_log(handle, ALPM_LOG_DEBUG, "partial upgrade due to upgrade for %s\n", lpkg->name);
+				return 1;
+			}
+
+			/* jump to next local package */
+			break;
+		}
+	}
+
+	return 0;
+}
+
 int _alpm_sync_prepare(alpm_handle_t *handle, alpm_list_t **data)
 {
 	alpm_list_t *i, *j;
@@ -682,6 +789,12 @@ int _alpm_sync_prepare(alpm_handle_t *handle, alpm_list_t **data)
 		}
 	}
 
+	if(!(trans->flags & ALPM_TRANS_FLAG_ALLOWPARTIAL) && !(trans->flags & ALPM_TRANS_FLAG_NODEPVERSION)
+			&& is_partial_upgrade(handle)) {
+		handle->pm_errno = ALPM_ERR_TRANS_PARTIAL_UPGRADE;
+		ret = -1;
+	}
+
 cleanup:
 	return ret;
 }
diff --git a/lib/libalpm/trans.h b/lib/libalpm/trans.h
index 9ee7015e..6fe99227 100644
--- a/lib/libalpm/trans.h
+++ b/lib/libalpm/trans.h
@@ -39,6 +39,7 @@ typedef enum _alpm_transstate_t {
 typedef struct _alpm_trans_t {
 	/* bitfield of alpm_transflag_t flags */
 	int flags;
+	int sysupgrade;
 	alpm_transstate_t state;
 	alpm_list_t *unresolvable;  /* list of (alpm_pkg_t *) */
 	alpm_list_t *add;           /* list of (alpm_pkg_t *) */
diff --git a/src/pacman/callback.c b/src/pacman/callback.c
index 2823d510..43487fec 100644
--- a/src/pacman/callback.c
+++ b/src/pacman/callback.c
@@ -453,7 +453,8 @@ void cb_question(void *ctx, alpm_question_t *question)
 		case ALPM_QUESTION_REPLACE_PKG:
 			{
 				alpm_question_replace_t *q = &question->replace;
-				q->replace = yesno(_("Replace %s with %s/%s?"),
+				q->replace = 1;
+				colon_printf(_("Replacing %s with %s/%s"),
 						alpm_pkg_get_name(q->oldpkg),
 						alpm_db_get_name(q->newdb),
 						alpm_pkg_get_name(q->newpkg));
diff --git a/src/pacman/conf.c b/src/pacman/conf.c
index 2cf56bf1..868bf202 100644
--- a/src/pacman/conf.c
+++ b/src/pacman/conf.c
@@ -827,6 +827,7 @@ static int register_repo(config_repo_t *repo)
 	pm_printf(ALPM_LOG_DEBUG, "setting usage of %d for %s repository\n",
 			repo->usage, repo->name);
 	alpm_db_set_usage(db, repo->usage);
+	alpm_db_set_allow_partial_upgrades(db, repo->allow_partial);
 
 	for(i = repo->cache_servers; i; i = alpm_list_next(i)) {
 		const char *value = i->data;
@@ -1049,6 +1050,8 @@ static int _parse_repo(const char *key, char *value, const char *file,
 			}
 			FREELIST(values);
 		}
+	} else if(strcmp(key, "AllowPartialUpgrades") == 0) {
+		repo->allow_partial = 1;
 	} else {
 		pm_printf(ALPM_LOG_WARNING,
 				_("config file %s, line %d: directive '%s' in section '%s' not recognized.\n"),
diff --git a/src/pacman/conf.h b/src/pacman/conf.h
index e9f17123..f735fe1b 100644
--- a/src/pacman/conf.h
+++ b/src/pacman/conf.h
@@ -40,6 +40,7 @@ typedef struct __config_repo_t {
 	alpm_list_t *cache_servers;
 	alpm_list_t *servers;
 	int usage;
+	int allow_partial;
 	int siglevel;
 	int siglevel_mask;
 } config_repo_t;
@@ -212,7 +213,8 @@ enum {
 	OP_DOWNLOADONLY,
 	OP_REFRESH,
 	OP_ASSUMEINSTALLED,
-	OP_DISABLEDLTIMEOUT
+	OP_DISABLEDLTIMEOUT,
+	OP_PARTIAL
 };
 
 /* clean method */
diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c
index 6b64ffc7..44ff6b74 100644
--- a/src/pacman/pacman.c
+++ b/src/pacman/pacman.c
@@ -164,6 +164,7 @@ static void usage(int op, const char * const myname)
 			addlist(_("  -y, --refresh        download fresh package databases from the server\n"
 			          "                       (-yy to force a refresh even if up to date)\n"));
 			addlist(_("      --needed         do not reinstall up to date packages\n"));
+			addlist(_("      --partial        allow partial upgrades\n"));
 		} else if(op == PM_OP_DATABASE) {
 			printf("%s:  %s {-D --database} <%s> <%s>\n", str_usg, myname, str_opt, str_pkg);
 			printf("%s:\n", str_opt);
@@ -860,6 +861,9 @@ static int parsearg_sync(int opt)
 		case 'y':
 			(config->op_s_sync)++;
 			break;
+		case OP_PARTIAL:
+			config->flags |= ALPM_TRANS_FLAG_ALLOWPARTIAL;
+			break;
 		default:
 			return 1;
 	}
@@ -969,6 +973,7 @@ static int parseargs(int argc, char *argv[])
 		{"logfile",    required_argument, 0, OP_LOGFILE},
 		{"ignoregroup", required_argument, 0, OP_IGNOREGROUP},
 		{"needed",     no_argument,       0, OP_NEEDED},
+		{"partial",     no_argument,      0, OP_PARTIAL},
 		{"asexplicit",     no_argument,   0, OP_ASEXPLICIT},
 		{"arch",       required_argument, 0, OP_ARCH},
 		{"print-format", required_argument, 0, OP_PRINTFORMAT},
diff --git a/src/pacman/sync.c b/src/pacman/sync.c
index 95340db1..2332d476 100644
--- a/src/pacman/sync.c
+++ b/src/pacman/sync.c
@@ -806,6 +806,9 @@ int sync_prepare_execute(void)
 					alpm_conflict_free(conflict);
 				}
 				break;
+			case ALPM_ERR_TRANS_PARTIAL_UPGRADE:
+				colon_printf(_("System is out of date (use -Su to upgrade)\n"));
+				break;
 			default:
 				break;
 		}
diff --git a/test/pacman/meson.build b/test/pacman/meson.build
index f223f1f4..84dde220 100644
--- a/test/pacman/meson.build
+++ b/test/pacman/meson.build
@@ -336,6 +336,16 @@ pacman_tests = [
   'tests/upgrade084.py',
   'tests/upgrade090.py',
   'tests/upgrade100.py',
+  'tests/partial001.py',
+  'tests/partial002.py',
+  'tests/partial003.py',
+  'tests/partial004.py',
+  'tests/partial005.py',
+  'tests/partial006.py',
+  'tests/partial007.py',
+  'tests/partial008.py',
+  'tests/partial009.py',
+  'tests/partial010.py',
   'tests/xfercommand001.py',
   'tests/upgrade-download-404.py',
   'tests/upgrade-download-pkg-and-sig-with-filename.py',
diff --git a/test/pacman/tests/epoch005.py b/test/pacman/tests/epoch005.py
index 62151703..fc0abe24 100644
--- a/test/pacman/tests/epoch005.py
+++ b/test/pacman/tests/epoch005.py
@@ -17,7 +17,7 @@ for k, v in pkgvers:
 	lp = pmpkg("pkg_%d" % k, versions[2])
 	self.addpkg2db("local", lp)
 
-self.args = "-Su"
+self.args = "-Su --partial"
 
 self.addrule("PACMAN_RETCODE=0")
 for k, v in pkgvers:
diff --git a/test/pacman/tests/ignore005.py b/test/pacman/tests/ignore005.py
index 51bcba39..682e34ba 100644
--- a/test/pacman/tests/ignore005.py
+++ b/test/pacman/tests/ignore005.py
@@ -36,7 +36,7 @@ self.addpkg2db("sync", packageA5up)
 
 
 self.option["IgnorePkg"] = ["packageA3"]
-self.args = "-S packageA1 packageA2 --ask=16"
+self.args = "-S packageA1 packageA2 --ask=16 --partial"
 
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_VERSION=packageA1|1.0-1")
diff --git a/test/pacman/tests/partial001.py b/test/pacman/tests/partial001.py
new file mode 100644
index 00000000..fa667c5a
--- /dev/null
+++ b/test/pacman/tests/partial001.py
@@ -0,0 +1,15 @@
+self.description = "Partial upgrade"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S %s" % sp1.name
+
+self.addrule("PACMAN_RETCODE=1")
+self.addrule("!PKG_EXIST=pkg1")
diff --git a/test/pacman/tests/partial002.py b/test/pacman/tests/partial002.py
new file mode 100644
index 00000000..891f3117
--- /dev/null
+++ b/test/pacman/tests/partial002.py
@@ -0,0 +1,16 @@
+self.description = "Partial upgrade with --partial"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S --partial %s" % sp1.name
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
diff --git a/test/pacman/tests/partial003.py b/test/pacman/tests/partial003.py
new file mode 100644
index 00000000..b158a3a6
--- /dev/null
+++ b/test/pacman/tests/partial003.py
@@ -0,0 +1,16 @@
+self.description = "No partial upgrade all needed packages are instaled"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S %s %s" % (sp1.name, sp2.name)
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
diff --git a/test/pacman/tests/partial004.py b/test/pacman/tests/partial004.py
new file mode 100644
index 00000000..2bbaa08b
--- /dev/null
+++ b/test/pacman/tests/partial004.py
@@ -0,0 +1,18 @@
+self.description = "No partial upgrade from ignorepkg"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S %s --ignore %s" % (sp1.name, sp2.name)
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_VERSION=pkg2|1.0-1")
+
diff --git a/test/pacman/tests/partial005.py b/test/pacman/tests/partial005.py
new file mode 100644
index 00000000..35e42abf
--- /dev/null
+++ b/test/pacman/tests/partial005.py
@@ -0,0 +1,18 @@
+self.description = "No partial upgrade from -U"
+
+p1 = pmpkg("pkg1", "1.0-2")
+self.addpkg(p1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-U %s" % p1.filename()
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_VERSION=pkg2|1.0-1")
+
diff --git a/test/pacman/tests/partial006.py b/test/pacman/tests/partial006.py
new file mode 100644
index 00000000..b254a8e1
--- /dev/null
+++ b/test/pacman/tests/partial006.py
@@ -0,0 +1,18 @@
+self.description = "Partial upgrade due to downgrade"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-1")
+self.addpkg2db("sync", sp2)
+
+lp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("local", lp2)
+
+self.args = "-Su %s" % sp1.name
+
+self.addrule("!PACMAN_RETCODE=0")
+self.addrule("!PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("PKG_VERSION=pkg2|1.0-2")
+
diff --git a/test/pacman/tests/partial007.py b/test/pacman/tests/partial007.py
new file mode 100644
index 00000000..84e2a68c
--- /dev/null
+++ b/test/pacman/tests/partial007.py
@@ -0,0 +1,20 @@
+self.description = "No partial upgrade for reinstall"
+
+sp1 = pmpkg("pkg1")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-2")
+self.addpkg2db("sync", sp2)
+
+lp1 = pmpkg("pkg1")
+self.addpkg2db("local", lp1)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S %s" % sp1.name
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+
diff --git a/test/pacman/tests/partial008.py b/test/pacman/tests/partial008.py
new file mode 100644
index 00000000..44ff3255
--- /dev/null
+++ b/test/pacman/tests/partial008.py
@@ -0,0 +1,22 @@
+self.description = "Partial upgrade from replace"
+
+sp1 = pmpkg("pkg1", "1.0-2")
+self.addpkg2db("sync", sp1)
+
+sp2 = pmpkg("pkg2", "1.0-1")
+self.addpkg2db("sync", sp2)
+
+sp3 = pmpkg("replace")
+sp3.replaces = ["pkg2"]
+self.addpkg2db("sync", sp3)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+self.args = "-S %s" % sp1.name
+
+self.addrule("!PACMAN_RETCODE=0")
+self.addrule("!PKG_EXIST=pkg1")
+self.addrule("PKG_EXIST=pkg2")
+self.addrule("!PKG_EXIST=replace")
+
diff --git a/test/pacman/tests/partial009.py b/test/pacman/tests/partial009.py
new file mode 100644
index 00000000..fcfde110
--- /dev/null
+++ b/test/pacman/tests/partial009.py
@@ -0,0 +1,18 @@
+self.description = "Partial upgrade due to unresolvable dependency"
+
+packageA1 = pmpkg("dep")
+self.addpkg2db("local", packageA1)
+
+packageA1up = pmpkg("dep", "2.0-1")
+packageA1up.depends = ["fake"];
+self.addpkg2db("sync", packageA1up)
+
+packageA2up = pmpkg("package")
+packageA2up.depends = ["dep"];
+self.addpkg2db("sync", packageA2up)
+
+self.args = "-S package dep --ask=16"
+
+self.addrule("!PACMAN_RETCODE=0")
+self.addrule("!PKG_EXIST=package")
+self.addrule("PKG_EXIST=dep")
diff --git a/test/pacman/tests/partial010.py b/test/pacman/tests/partial010.py
new file mode 100644
index 00000000..259e1ff0
--- /dev/null
+++ b/test/pacman/tests/partial010.py
@@ -0,0 +1,26 @@
+self.description = "Sysupgrade with ignored package prevent other upgrade causes partial upgrade"
+
+lp1 = pmpkg("glibc", "1.0-1")
+lp2 = pmpkg("gcc-libs", "1.0-1")
+lp2.depends = ["glibc>=1.0-1"]
+lp3 = pmpkg("pcre", "1.0-1")
+lp3.depends = ["gcc-libs"]
+
+for p in lp1, lp2, lp3:
+	self.addpkg2db("local", p)
+
+sp1 = pmpkg("glibc", "1.0-2")
+sp2 = pmpkg("gcc-libs", "1.0-2")
+sp2.depends = ["glibc>=1.0-2"]
+sp3 = pmpkg("pcre", "1.0-2")
+sp3.depends = ["gcc-libs"]
+
+for p in sp1, sp2, sp3:
+	self.addpkg2db("sync", p)
+
+self.args = "-Su --ignore %s --ask=16" % sp1.name
+
+self.addrule("!PACMAN_RETCODE=0")
+self.addrule("PKG_VERSION=glibc|1.0-1")
+self.addrule("PKG_VERSION=gcc-libs|1.0-1")
+self.addrule("PKG_VERSION=pcre|1.0-1")
diff --git a/test/pacman/tests/sync140.py b/test/pacman/tests/sync140.py
index fbe750f2..15e78f74 100644
--- a/test/pacman/tests/sync140.py
+++ b/test/pacman/tests/sync140.py
@@ -18,7 +18,7 @@ sp3.depends = ["gcc-libs"]
 for p in sp1, sp2, sp3:
 	self.addpkg2db("sync", p)
 
-self.args = "-Su --ignore %s --ask=16" % sp1.name
+self.args = "-Su --ignore %s --ask=16 --partial" % sp1.name
 
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_VERSION=glibc|1.0-1")
diff --git a/test/pacman/tests/sync141.py b/test/pacman/tests/sync141.py
index 02f7be81..c0a74ddb 100644
--- a/test/pacman/tests/sync141.py
+++ b/test/pacman/tests/sync141.py
@@ -18,7 +18,7 @@ sp3.depends = ["b_gcc-libs"]
 for p in sp1, sp2, sp3:
 	self.addpkg2db("sync", p)
 
-self.args = "-Su --ignore %s --ask=16" % sp1.name
+self.args = "-Su --ignore %s --ask=16 --partial" % sp1.name
 
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_VERSION=c_glibc|1.0-1")
diff --git a/test/pacman/tests/sync306.py b/test/pacman/tests/sync306.py
index c7401d07..936812d5 100644
--- a/test/pacman/tests/sync306.py
+++ b/test/pacman/tests/sync306.py
@@ -57,6 +57,6 @@ lp7 = pmpkg("db", "5.2.36-2")
 lp7.depends = ["gcc-libs"]
 self.addpkg2db("local", lp7)
 
-self.args = "-S pacman"
+self.args = "-S pacman --partial"
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_VERSION=pacman|4.0.1-2")
diff --git a/test/pacman/tests/sync992.py b/test/pacman/tests/sync992.py
index 3b538933..300afce3 100644
--- a/test/pacman/tests/sync992.py
+++ b/test/pacman/tests/sync992.py
@@ -15,7 +15,7 @@ for p in sp1, sp2, sp3:
 lp1 = pmpkg("pkg2", "0.1-1")
 self.addpkg2db("local", lp1)
 
-self.args = "-S %s --ask=4" % " ".join([p.name for p in (sp1, sp2)])
+self.args = "-S %s --ask=4 --partial" % " ".join([p.name for p in (sp1, sp2)])
 
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_EXIST=pkg1")
diff --git a/test/pacman/tests/unresolvable001.py b/test/pacman/tests/unresolvable001.py
index 4e5da6f3..95bf981c 100644
--- a/test/pacman/tests/unresolvable001.py
+++ b/test/pacman/tests/unresolvable001.py
@@ -11,7 +11,7 @@ packageA2up = pmpkg("package")
 packageA2up.depends = ["dep"];
 self.addpkg2db("sync", packageA2up)
 
-self.args = "-S package dep --ask=16"
+self.args = "-S package dep --ask=16 --partial"
 
 self.addrule("PACMAN_RETCODE=0")
 self.addrule("PKG_EXIST=package")