1 files changed, 7 insertions, 3 deletions
diff --git a/nixos/modules/installer/tools/nixos-rebuild.sh b/nixos/modules/installer/tools/nixos-rebuild.sh
index ea434ca87416..891f374df536 100644
--- a/nixos/modules/installer/tools/nixos-rebuild.sh
+++ b/nixos/modules/installer/tools/nixos-rebuild.sh
@@ -22,6 +22,7 @@ repair=
 profile=/nix/var/nix/profiles/system
 buildHost=
 targetHost=
+maybeSudo=
 
 while [ "$#" -gt 0 ]; do
     i="$1"; shift 1
@@ -96,6 +97,9 @@ while [ "$#" -gt 0 ]; do
     esac
 done
 
+if [ -n "$SUDO_USER" ]; then
+    maybeSudo="sudo "
+fi
 
 if [ -z "$buildHost" -a -n "$targetHost" ]; then
     buildHost="$targetHost"
@@ -111,9 +115,9 @@ buildHostCmd() {
     if [ -z "$buildHost" ]; then
         "$@"
     elif [ -n "$remoteNix" ]; then
-        ssh $SSHOPTS "$buildHost" env PATH="$remoteNix:$PATH" "$@"
+        ssh $SSHOPTS "$buildHost" env PATH="$remoteNix:$PATH" "$maybeSudo$@"
     else
-        ssh $SSHOPTS "$buildHost" "$@"
+        ssh $SSHOPTS "$buildHost" "$maybeSudo$@"
     fi
 }
 
@@ -121,7 +125,7 @@ targetHostCmd() {
     if [ -z "$targetHost" ]; then
         "$@"
     else
-        ssh $SSHOPTS "$targetHost" "$@"
+        ssh $SSHOPTS "$targetHost" "$maybeSudo$@"
     fi
 }