nixos-install: 'nix build' -> nix-build

'nix build' is an experimental command so we shouldn't use it
yet. (nixos-rebuild also uses 'nix', but only when using flakes, which
are themselves an experimental feature.)

nixos/doc/manual/man-nixos-install.xml

@@ -24,16 +24,6 @@
      </arg>
     </group>
    </arg>
-   <arg>
-    <group choice='req'>
-     <arg choice='plain'>
-      <option>--print-build-logs</option>
-     </arg>
-     <arg choice='plain'>
-      <option>-L</option>
-     </arg>
-    </group>
-   </arg>
    <arg>
     <arg choice='plain'>
      <option>-I</option>
@@ -178,12 +168,6 @@
      <para>Please note that this option may be specified repeatedly.</para>
     </listitem>
    </varlistentry>
-   <varlistentry>
-    <term><option>--print-build-logs</option> / <option>-L</option></term>
-    <listitem>
-     <para>Print the full build logs of <command>nix build</command> to stderr.</para>
-    </listitem>
-   </varlistentry>
    <varlistentry>
     <term>
      <option>--root</option>

nixos/modules/installer/tools/nixos-install.sh

@@ -15,7 +15,6 @@ mountPoint=/mnt
 channelPath=
 system=
 verbosity=()
-buildLogs=
 
 while [ "$#" -gt 0 ]; do
     i="$1"; shift 1
@@ -60,9 +59,6 @@ while [ "$#" -gt 0 ]; do
         -v*|--verbose)
             verbosity+=("$i")
             ;;
-        -L|--print-build-logs)
-            buildLogs="$i"
-            ;;
         *)
             echo "$0: unknown option \`$i'"
             exit 1
@@ -100,9 +96,9 @@ sub="auto?trusted=1"
 if [[ -z $system ]]; then
     echo "building the configuration in $NIXOS_CONFIG..."
     outLink="$tmpdir/system"
-    nix build --out-link "$outLink" --store "$mountPoint" "${extraBuildFlags[@]}" \
+    nix-build --out-link "$outLink" --store "$mountPoint" "${extraBuildFlags[@]}" \
         --extra-substituters "$sub" \
-        -f '<nixpkgs/nixos>' system -I "nixos-config=$NIXOS_CONFIG" ${verbosity[@]} ${buildLogs}
+        '<nixpkgs/nixos>' -A system -I "nixos-config=$NIXOS_CONFIG" ${verbosity[@]}
     system=$(readlink -f $outLink)
 fi