diff --git a/salt/grains/core.py b/salt/grains/core.py

index 710c57f28f..124d7c25cd 100644

--- a/salt/grains/core.py

+++ b/salt/grains/core.py

@@ -1764,6 +1764,7 @@ def _derive_os_grain(osfullname, os_id=None):

 # post-_OS_NAME_MAP. If your system is having trouble with detection, please

 # make sure that the 'os' grain is capitalized and working correctly first.

 _OS_FAMILY_MAP = {

+    "ALT": "RedHat",

     "Ubuntu": "Debian",

     "Fedora": "RedHat",

     "Chapeau": "RedHat",

@@ -2218,6 +2219,8 @@ def _legacy_linux_distribution_data(grains, os_release, lsb_has_error):

                     cpe = _parse_cpe_name(os_release["CPE_NAME"])

                     if not cpe:

                         log.error("Broken CPE_NAME format in /etc/os-release!")

+                    elif cpe.get('vendor', '').lower() == 'alt':

+                        grains['os'] = 'ALT'

                     elif cpe.get("vendor", "").lower() in ["suse", "opensuse"]:

                         grains["os"] = "SUSE"

                         # openSUSE `osfullname` grain normalization

@@ -2352,6 +2355,8 @@ def _legacy_linux_distribution_data(grains, os_release, lsb_has_error):

         grains["oscodename"] = oscodename

     if "os" not in grains:

         grains["os"] = _derive_os_grain(grains["osfullname"])

+    if grains["lsb_distrib_id"] != grains["os"]:

+        grains["os"] = grains["lsb_distrib_id"]

     # this assigns family names based on the os name

     # family defaults to the os name if not found

     grains["os_family"] = _OS_FAMILY_MAP.get(grains["os"], grains["os"])