diff --git a/debian/changelog b/debian/changelog
index 5405aba74..aac543676 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -168,7 +168,14 @@ yunohost (11.0.2) testing; urgency=low
 
  -- Alexandre Aubin <alex.aubin@mailoo.org>  Wed, 19 Jan 2022 20:52:39 +0100
 
-yunohost (4.4.2.5) stable; urgency=low
+yunohost (4.4.2.7) stable; urgency=low
+
+  - upgrades: ignore boring insserv warnings during apt commands (87f0eff9)
+  - bullseye migration: higher treshold for low space detection in /boot/ because some people still experience the issue on 4.4.2.6 (d283c900)
+
+ -- Alexandre Aubin <alex.aubin@mailoo.org>  Wed, 17 Aug 2022 01:21:36 +0200
+
+yunohost (4.4.2.6) stable; urgency=low
 
   - [fix] bullseye migration: trash pip freeze stderr because it's confusing users ... (e68fc821)
   - [fix] bullseye migration: add a check that there's at least 70MB available in /boot ... (02fcbd97)
diff --git a/src/migrations/0021_migrate_to_bullseye.py b/src/migrations/0021_migrate_to_bullseye.py
index a110d801d..44d88b5d4 100644
--- a/src/migrations/0021_migrate_to_bullseye.py
+++ b/src/migrations/0021_migrate_to_bullseye.py
@@ -201,18 +201,18 @@ class MyMigration(Migration):
         # Another boring fix for the super annoying libc6-dev: Breaks libgcc-8-dev
         # https://forum.yunohost.org/t/20617
         #
-        if os.system("dpkg --list | grep '^ii' | grep -q ' libgcc-8-dev '") == 0 and os.system("LC_ALL=C apt policy libgcc-8-dev | grep Candidate | grep -q rpi"):
+        if os.system("dpkg --list | grep '^ii' | grep -q ' libgcc-8-dev'") == 0 and os.system("LC_ALL=C apt policy libgcc-8-dev | grep Candidate | grep -q rpi") == 0:
             logger.info("Attempting to fix the build-essential / libc6-dev / libgcc-8-dev hell ...")
             os.system("cp /var/lib/dpkg/status /root/dpkg_status.bkp")
             # This removes the dependency to build-essential from $app-ynh-deps
             os.system(
                 "perl -i~ -0777 -pe 's/(Package: .*-ynh-deps\\n(.+:.+\\n)+Depends:.*)(build-essential, ?)(.*)/$1$4/g' /var/lib/dpkg/status"
             )
-            self.apt("build-essential", verb="remove")
+            self.apt_install("build-essential-")  # Note the '-' suffix to mean that we actually want to remove the packages
             os.system(
                 "LC_ALL=C DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none apt autoremove --assume-yes"
             )
-            self.apt("gcc-8 libgcc-8-dev", verb="remove")
+            self.apt_install("gcc-8- libgcc-8-dev-")  # Note the '-' suffix to mean that we actually want to remove the packages
 
         #
         # Main upgrade
@@ -379,8 +379,8 @@ class MyMigration(Migration):
         if free_space_in_directory("/var/") / (1024**3) < 1.0:
             raise YunohostError("migration_0021_not_enough_free_space")
 
-        if free_space_in_directory("/boot/") / (70**3) < 1.0:
-            raise YunohostError("/boot/ has less than 70MB available. This will probably trigger a crash during the upgrade because a new kernel needs to be installed. Please look for advice on the forum on how to remove old unused kernels to free some space in /boot/.", raw_msg=True)
+        if free_space_in_directory("/boot/") / (120**3) < 1.0:
+            raise YunohostError("/boot/ has less than 120MB available. This will probably trigger a crash during the upgrade because a new kernel needs to be installed. Please look for advice on the forum on how to remove old, unused kernels to free up some space in /boot/.", raw_msg=True)
 
         # Check system is up to date
         # (but we don't if 'bullseye' is already in the sources.list ...
@@ -495,9 +495,6 @@ class MyMigration(Migration):
             os.system(f"apt-mark unhold {package}")
 
     def apt_install(self, cmd):
-        return self.apt(cmd, verb="install")
-
-    def apt(self, cmd, verb="install"):
         def is_relevant(line):
             return "Reading database ..." not in line.rstrip()
 
@@ -511,7 +508,7 @@ class MyMigration(Migration):
         )
 
         cmd = (
-            f"LC_ALL=C DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none apt {verb} --quiet -o=Dpkg::Use-Pty=0 --fix-broken --assume-yes "
+            f"LC_ALL=C DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none apt install --quiet -o=Dpkg::Use-Pty=0 --fix-broken --assume-yes "
             + cmd
         )
 
diff --git a/src/tools.py b/src/tools.py
index abf224c1c..e9adedb2a 100644
--- a/src/tools.py
+++ b/src/tools.py
@@ -538,6 +538,8 @@ def _apt_log_line_is_relevant(line):
         "==> Keeping old config file as default.",
         "is a disabled or a static unit",
         " update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults",
+        "insserv: warning: current stop runlevel",
+        "insserv: warning: current start runlevel",
     ]
     return line.rstrip() and all(i not in line.rstrip() for i in irrelevants)