diff --git a/app/buck2_data/error.proto b/app/buck2_data/error.proto
index 609335ba6c406..3bb2a454fbc21 100644
--- a/app/buck2_data/error.proto
+++ b/app/buck2_data/error.proto
@@ -138,6 +138,10 @@ enum ErrorTag {
 
   // Errors during buck2 install.
   INSTALL = 200;
+  INSTALLER_UNKNOWN = 2101;
+  INSTALLER_TIER0 = 2102;
+  INSTALLER_ENVIRONMENT = 2103;
+  INSTALLER_INPUT = 2104;
 
   //// High level descriptions of the "phase" of the build during which the
   // error occurred
diff --git a/app/buck2_error/src/classify.rs b/app/buck2_error/src/classify.rs
index 64f06b0e77c34..d6811bfd8c9a8 100644
--- a/app/buck2_error/src/classify.rs
+++ b/app/buck2_error/src/classify.rs
@@ -63,6 +63,7 @@ pub(crate) fn category_and_rank(tag: ErrorTag) -> (Option<Tier>, u32) {
         ErrorTag::ServerStderrEmpty => rank!(environment),
         // Note: This is only true internally due to buckwrapper
         ErrorTag::NoBuckRoot => rank!(environment),
+        ErrorTag::InstallerEnvironment => rank!(environment),
 
         // Tier 0 errors
         ErrorTag::ServerJemallocAssert => rank!(tier0),
@@ -123,6 +124,8 @@ pub(crate) fn category_and_rank(tag: ErrorTag) -> (Option<Tier>, u32) {
         ErrorTag::DiceCancelled => rank!(tier0),
         ErrorTag::DiceUnexpectedCycleGuardType => rank!(tier0),
         ErrorTag::DiceDuplicateActivationData => rank!(tier0),
+        ErrorTag::InstallerUnknown => rank!(tier0),
+        ErrorTag::InstallerTier0 => rank!(tier0),
 
         ErrorTag::Environment => rank!(environment),
         ErrorTag::Tier0 => rank!(tier0),
@@ -158,6 +161,7 @@ pub(crate) fn category_and_rank(tag: ErrorTag) -> (Option<Tier>, u32) {
         ErrorTag::Analysis => rank!(input),
         ErrorTag::TestDeadlineExpired => rank!(input),
         ErrorTag::Unimplemented => rank!(input),
+        ErrorTag::InstallerInput => rank!(input),
 
         ErrorTag::Input => rank!(input),
 
@@ -216,6 +220,9 @@ pub fn tag_is_hidden(tag: &ErrorTag) -> bool {
         ErrorTag::Tier0 => true,
         ErrorTag::Input => true,
         ErrorTag::Environment => true,
+        ErrorTag::InstallerTier0 => true,
+        ErrorTag::InstallerInput => true,
+        ErrorTag::InstallerEnvironment => true,
         _ => false,
     }
 }
@@ -279,6 +286,7 @@ pub enum ErrorSourceArea {
     Watchman,
     Starlark,
     TestExecutor,
+    Installer,
 }
 
 pub fn source_area(tag: ErrorTag) -> ErrorSourceArea {
@@ -293,6 +301,8 @@ pub fn source_area(tag: ErrorTag) -> ErrorSourceArea {
         ErrorSourceArea::Starlark
     } else if tag == crate::ErrorTag::Tpx || tag == crate::ErrorTag::TestExecutor {
         ErrorSourceArea::TestExecutor
+    } else if tag_name.starts_with("INSTALLER") {
+        ErrorSourceArea::Installer
     } else {
         ErrorSourceArea::Buck2
     }
diff --git a/app/buck2_server_commands/src/commands/install.rs b/app/buck2_server_commands/src/commands/install.rs
index 5785d34319374..2a33e0b8b966e 100644
--- a/app/buck2_server_commands/src/commands/install.rs
+++ b/app/buck2_server_commands/src/commands/install.rs
@@ -799,18 +799,21 @@ async fn send_file(
                 installer_log: install_log.to_owned(),
             }
             .into();
-            if let Some(category) =
+            let category_tag = if let Some(category) =
                 buck2_install_proto::ErrorCategory::from_i32(error_detail.category)
             {
-                if let Some(category_tag) = match category {
-                    buck2_install_proto::ErrorCategory::Unspecified => None,
-                    buck2_install_proto::ErrorCategory::Tier0 => Some(ErrorTag::Tier0),
-                    buck2_install_proto::ErrorCategory::Input => Some(ErrorTag::Input),
-                    buck2_install_proto::ErrorCategory::Environment => Some(ErrorTag::Environment),
-                } {
-                    error = error.tag([category_tag]);
+                match category {
+                    buck2_install_proto::ErrorCategory::Unspecified => ErrorTag::InstallerUnknown,
+                    buck2_install_proto::ErrorCategory::Tier0 => ErrorTag::InstallerTier0,
+                    buck2_install_proto::ErrorCategory::Input => ErrorTag::InstallerInput,
+                    buck2_install_proto::ErrorCategory::Environment => {
+                        ErrorTag::InstallerEnvironment
+                    }
                 }
-            }
+            } else {
+                ErrorTag::InstallerUnknown
+            };
+            error = error.tag([category_tag]);
 
             for tag in error_detail.tags {
                 error = error.context_for_key(&tag);