From 0ad7b0e48b4e004060f68a4a53502831294df3f1 Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Mon, 10 Apr 2023 22:53:56 +0100
Subject: [PATCH] don't hardcode mtd0 initramfs->second stage

---
 modules/initramfs.nix | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/modules/initramfs.nix b/modules/initramfs.nix
index fe191342..ea724381 100644
--- a/modules/initramfs.nix
+++ b/modules/initramfs.nix
@@ -47,9 +47,18 @@ in
           slashinit = pkgs.writeScript "init" ''
             #!/bin/sh
             exec >/dev/console
-            echo IT MOVES
+            echo Running in initramfs
             mount -t proc none /proc
-            mount -t jffs2 mtd0 /target/persist
+            set -- $(cat /proc/cmdline)
+            for i in "$@" ; do
+              case "''${i}" in
+                root=*)
+                  rootdevice="''${i#root=}"
+                  ;;
+              esac
+            done
+            echo mount -t jffs2 ''${rootdevice} /target/persist
+            mount -t jffs2 ''${rootdevice} /target/persist
             mount -o bind /target/persist/nix /target/nix
             sh /target/persist/activate /target
             cd /target